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Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/bits/basic_string.h')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/bits/basic_string.h | 2692 |
1 files changed, 0 insertions, 2692 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/bits/basic_string.h b/gcc-4.4.3/libstdc++-v3/include/bits/basic_string.h deleted file mode 100644 index 1e8300dab..000000000 --- a/gcc-4.4.3/libstdc++-v3/include/bits/basic_string.h +++ /dev/null @@ -1,2692 +0,0 @@ -// Components for manipulating sequences of characters -*- C++ -*- - -// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, -// 2006, 2007, 2008, 2009 -// Free Software Foundation, Inc. -// -// This file is part of the GNU ISO C++ Library. This library is free -// software; you can redistribute it and/or modify it under the -// terms of the GNU General Public License as published by the -// Free Software Foundation; either version 3, or (at your option) -// any later version. - -// This library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. - -// Under Section 7 of GPL version 3, you are granted additional -// permissions described in the GCC Runtime Library Exception, version -// 3.1, as published by the Free Software Foundation. - -// You should have received a copy of the GNU General Public License and -// a copy of the GCC Runtime Library Exception along with this program; -// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -// <http://www.gnu.org/licenses/>. - -/** @file basic_string.h - * This is an internal header file, included by other library headers. - * You should not attempt to use it directly. - */ - -// -// ISO C++ 14882: 21 Strings library -// - -#ifndef _BASIC_STRING_H -#define _BASIC_STRING_H 1 - -#pragma GCC system_header - -#include <ext/atomicity.h> -#include <debug/debug.h> -#include <initializer_list> - -_GLIBCXX_BEGIN_NAMESPACE(std) - - /** - * @class basic_string basic_string.h <string> - * @brief Managing sequences of characters and character-like objects. - * - * @ingroup sequences - * - * Meets the requirements of a <a href="tables.html#65">container</a>, a - * <a href="tables.html#66">reversible container</a>, and a - * <a href="tables.html#67">sequence</a>. Of the - * <a href="tables.html#68">optional sequence requirements</a>, only - * @c push_back, @c at, and array access are supported. - * - * @doctodo - * - * - * Documentation? What's that? - * Nathan Myers <ncm@cantrip.org>. - * - * A string looks like this: - * - * @code - * [_Rep] - * _M_length - * [basic_string<char_type>] _M_capacity - * _M_dataplus _M_refcount - * _M_p ----------------> unnamed array of char_type - * @endcode - * - * Where the _M_p points to the first character in the string, and - * you cast it to a pointer-to-_Rep and subtract 1 to get a - * pointer to the header. - * - * This approach has the enormous advantage that a string object - * requires only one allocation. All the ugliness is confined - * within a single pair of inline functions, which each compile to - * a single "add" instruction: _Rep::_M_data(), and - * string::_M_rep(); and the allocation function which gets a - * block of raw bytes and with room enough and constructs a _Rep - * object at the front. - * - * The reason you want _M_data pointing to the character array and - * not the _Rep is so that the debugger can see the string - * contents. (Probably we should add a non-inline member to get - * the _Rep for the debugger to use, so users can check the actual - * string length.) - * - * Note that the _Rep object is a POD so that you can have a - * static "empty string" _Rep object already "constructed" before - * static constructors have run. The reference-count encoding is - * chosen so that a 0 indicates one reference, so you never try to - * destroy the empty-string _Rep object. - * - * All but the last paragraph is considered pretty conventional - * for a C++ string implementation. - */ - // 21.3 Template class basic_string - template<typename _CharT, typename _Traits, typename _Alloc> - class basic_string - { - typedef typename _Alloc::template rebind<_CharT>::other _CharT_alloc_type; - - // Types: - public: - typedef _Traits traits_type; - typedef typename _Traits::char_type value_type; - typedef _Alloc allocator_type; - typedef typename _CharT_alloc_type::size_type size_type; - typedef typename _CharT_alloc_type::difference_type difference_type; - typedef typename _CharT_alloc_type::reference reference; - typedef typename _CharT_alloc_type::const_reference const_reference; - typedef typename _CharT_alloc_type::pointer pointer; - typedef typename _CharT_alloc_type::const_pointer const_pointer; - typedef __gnu_cxx::__normal_iterator<pointer, basic_string> iterator; - typedef __gnu_cxx::__normal_iterator<const_pointer, basic_string> - const_iterator; - typedef std::reverse_iterator<const_iterator> const_reverse_iterator; - typedef std::reverse_iterator<iterator> reverse_iterator; - - private: - // _Rep: string representation - // Invariants: - // 1. String really contains _M_length + 1 characters: due to 21.3.4 - // must be kept null-terminated. - // 2. _M_capacity >= _M_length - // Allocated memory is always (_M_capacity + 1) * sizeof(_CharT). - // 3. _M_refcount has three states: - // -1: leaked, one reference, no ref-copies allowed, non-const. - // 0: one reference, non-const. - // n>0: n + 1 references, operations require a lock, const. - // 4. All fields==0 is an empty string, given the extra storage - // beyond-the-end for a null terminator; thus, the shared - // empty string representation needs no constructor. - - struct _Rep_base - { - size_type _M_length; - size_type _M_capacity; - _Atomic_word _M_refcount; - }; - - struct _Rep : _Rep_base - { - // Types: - typedef typename _Alloc::template rebind<char>::other _Raw_bytes_alloc; - - // (Public) Data members: - - // The maximum number of individual char_type elements of an - // individual string is determined by _S_max_size. This is the - // value that will be returned by max_size(). (Whereas npos - // is the maximum number of bytes the allocator can allocate.) - // If one was to divvy up the theoretical largest size string, - // with a terminating character and m _CharT elements, it'd - // look like this: - // npos = sizeof(_Rep) + (m * sizeof(_CharT)) + sizeof(_CharT) - // Solving for m: - // m = ((npos - sizeof(_Rep))/sizeof(CharT)) - 1 - // In addition, this implementation quarters this amount. - static const size_type _S_max_size; - static const _CharT _S_terminal; - - // The following storage is init'd to 0 by the linker, resulting - // (carefully) in an empty string with one reference. - static size_type _S_empty_rep_storage[]; - - static _Rep& - _S_empty_rep() - { - // NB: Mild hack to avoid strict-aliasing warnings. Note that - // _S_empty_rep_storage is never modified and the punning should - // be reasonably safe in this case. - void* __p = reinterpret_cast<void*>(&_S_empty_rep_storage); - return *reinterpret_cast<_Rep*>(__p); - } - - bool - _M_is_leaked() const - { return this->_M_refcount < 0; } - - bool - _M_is_shared() const - { return this->_M_refcount > 0; } - - void - _M_set_leaked() - { this->_M_refcount = -1; } - - void - _M_set_sharable() - { this->_M_refcount = 0; } - - void - _M_set_length_and_sharable(size_type __n) - { - this->_M_set_sharable(); // One reference. - this->_M_length = __n; - traits_type::assign(this->_M_refdata()[__n], _S_terminal); - // grrr. (per 21.3.4) - // You cannot leave those LWG people alone for a second. - } - - _CharT* - _M_refdata() throw() - { return reinterpret_cast<_CharT*>(this + 1); } - - _CharT* - _M_grab(const _Alloc& __alloc1, const _Alloc& __alloc2) - { - return (!_M_is_leaked() && __alloc1 == __alloc2) - ? _M_refcopy() : _M_clone(__alloc1); - } - - // Create & Destroy - static _Rep* - _S_create(size_type, size_type, const _Alloc&); - - void - _M_dispose(const _Alloc& __a) - { -#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING - if (__builtin_expect(this != &_S_empty_rep(), false)) -#endif - if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, - -1) <= 0) - _M_destroy(__a); - } // XXX MT - - void - _M_destroy(const _Alloc&) throw(); - - _CharT* - _M_refcopy() throw() - { -#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING - if (__builtin_expect(this != &_S_empty_rep(), false)) -#endif - __gnu_cxx::__atomic_add_dispatch(&this->_M_refcount, 1); - return _M_refdata(); - } // XXX MT - - _CharT* - _M_clone(const _Alloc&, size_type __res = 0); - }; - - // Use empty-base optimization: http://www.cantrip.org/emptyopt.html - struct _Alloc_hider : _Alloc - { - _Alloc_hider(_CharT* __dat, const _Alloc& __a) - : _Alloc(__a), _M_p(__dat) { } - - _CharT* _M_p; // The actual data. - }; - - public: - // Data Members (public): - // NB: This is an unsigned type, and thus represents the maximum - // size that the allocator can hold. - /// Value returned by various member functions when they fail. - static const size_type npos = static_cast<size_type>(-1); - - private: - // Data Members (private): - mutable _Alloc_hider _M_dataplus; - - _CharT* - _M_data() const - { return _M_dataplus._M_p; } - - _CharT* - _M_data(_CharT* __p) - { return (_M_dataplus._M_p = __p); } - - _Rep* - _M_rep() const - { return &((reinterpret_cast<_Rep*> (_M_data()))[-1]); } - - // For the internal use we have functions similar to `begin'/`end' - // but they do not call _M_leak. - iterator - _M_ibegin() const - { return iterator(_M_data()); } - - iterator - _M_iend() const - { return iterator(_M_data() + this->size()); } - - void - _M_leak() // for use in begin() & non-const op[] - { - if (!_M_rep()->_M_is_leaked()) - _M_leak_hard(); - } - - size_type - _M_check(size_type __pos, const char* __s) const - { - if (__pos > this->size()) - __throw_out_of_range(__N(__s)); - return __pos; - } - - void - _M_check_length(size_type __n1, size_type __n2, const char* __s) const - { - if (this->max_size() - (this->size() - __n1) < __n2) - __throw_length_error(__N(__s)); - } - - // NB: _M_limit doesn't check for a bad __pos value. - size_type - _M_limit(size_type __pos, size_type __off) const - { - const bool __testoff = __off < this->size() - __pos; - return __testoff ? __off : this->size() - __pos; - } - - // True if _Rep and source do not overlap. - bool - _M_disjunct(const _CharT* __s) const - { - return (less<const _CharT*>()(__s, _M_data()) - || less<const _CharT*>()(_M_data() + this->size(), __s)); - } - - // When __n = 1 way faster than the general multichar - // traits_type::copy/move/assign. - static void - _M_copy(_CharT* __d, const _CharT* __s, size_type __n) - { - if (__n == 1) - traits_type::assign(*__d, *__s); - else - traits_type::copy(__d, __s, __n); - } - - static void - _M_move(_CharT* __d, const _CharT* __s, size_type __n) - { - if (__n == 1) - traits_type::assign(*__d, *__s); - else - traits_type::move(__d, __s, __n); - } - - static void - _M_assign(_CharT* __d, size_type __n, _CharT __c) - { - if (__n == 1) - traits_type::assign(*__d, __c); - else - traits_type::assign(__d, __n, __c); - } - - // _S_copy_chars is a separate template to permit specialization - // to optimize for the common case of pointers as iterators. - template<class _Iterator> - static void - _S_copy_chars(_CharT* __p, _Iterator __k1, _Iterator __k2) - { - for (; __k1 != __k2; ++__k1, ++__p) - traits_type::assign(*__p, *__k1); // These types are off. - } - - static void - _S_copy_chars(_CharT* __p, iterator __k1, iterator __k2) - { _S_copy_chars(__p, __k1.base(), __k2.base()); } - - static void - _S_copy_chars(_CharT* __p, const_iterator __k1, const_iterator __k2) - { _S_copy_chars(__p, __k1.base(), __k2.base()); } - - static void - _S_copy_chars(_CharT* __p, _CharT* __k1, _CharT* __k2) - { _M_copy(__p, __k1, __k2 - __k1); } - - static void - _S_copy_chars(_CharT* __p, const _CharT* __k1, const _CharT* __k2) - { _M_copy(__p, __k1, __k2 - __k1); } - - static int - _S_compare(size_type __n1, size_type __n2) - { - const difference_type __d = difference_type(__n1 - __n2); - - if (__d > __gnu_cxx::__numeric_traits<int>::__max) - return __gnu_cxx::__numeric_traits<int>::__max; - else if (__d < __gnu_cxx::__numeric_traits<int>::__min) - return __gnu_cxx::__numeric_traits<int>::__min; - else - return int(__d); - } - - void - _M_mutate(size_type __pos, size_type __len1, size_type __len2); - - void - _M_leak_hard(); - - static _Rep& - _S_empty_rep() - { return _Rep::_S_empty_rep(); } - - public: - // Construct/copy/destroy: - // NB: We overload ctors in some cases instead of using default - // arguments, per 17.4.4.4 para. 2 item 2. - - /** - * @brief Default constructor creates an empty string. - */ - inline - basic_string(); - - /** - * @brief Construct an empty string using allocator @a a. - */ - explicit - basic_string(const _Alloc& __a); - - // NB: per LWG issue 42, semantics different from IS: - /** - * @brief Construct string with copy of value of @a str. - * @param str Source string. - */ - basic_string(const basic_string& __str); - /** - * @brief Construct string as copy of a substring. - * @param str Source string. - * @param pos Index of first character to copy from. - * @param n Number of characters to copy (default remainder). - */ - basic_string(const basic_string& __str, size_type __pos, - size_type __n = npos); - /** - * @brief Construct string as copy of a substring. - * @param str Source string. - * @param pos Index of first character to copy from. - * @param n Number of characters to copy. - * @param a Allocator to use. - */ - basic_string(const basic_string& __str, size_type __pos, - size_type __n, const _Alloc& __a); - - /** - * @brief Construct string initialized by a character array. - * @param s Source character array. - * @param n Number of characters to copy. - * @param a Allocator to use (default is default allocator). - * - * NB: @a s must have at least @a n characters, '\\0' has no special - * meaning. - */ - basic_string(const _CharT* __s, size_type __n, - const _Alloc& __a = _Alloc()); - /** - * @brief Construct string as copy of a C string. - * @param s Source C string. - * @param a Allocator to use (default is default allocator). - */ - basic_string(const _CharT* __s, const _Alloc& __a = _Alloc()); - /** - * @brief Construct string as multiple characters. - * @param n Number of characters. - * @param c Character to use. - * @param a Allocator to use (default is default allocator). - */ - basic_string(size_type __n, _CharT __c, const _Alloc& __a = _Alloc()); - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Construct string from an initializer list. - * @param l std::initializer_list of characters. - * @param a Allocator to use (default is default allocator). - */ - basic_string(initializer_list<_CharT> __l, const _Alloc& __a = _Alloc()); -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - /** - * @brief Construct string as copy of a range. - * @param beg Start of range. - * @param end End of range. - * @param a Allocator to use (default is default allocator). - */ - template<class _InputIterator> - basic_string(_InputIterator __beg, _InputIterator __end, - const _Alloc& __a = _Alloc()); - - /** - * @brief Destroy the string instance. - */ - ~basic_string() - { _M_rep()->_M_dispose(this->get_allocator()); } - - /** - * @brief Assign the value of @a str to this string. - * @param str Source string. - */ - basic_string& - operator=(const basic_string& __str) - { return this->assign(__str); } - - /** - * @brief Copy contents of @a s into this string. - * @param s Source null-terminated string. - */ - basic_string& - operator=(const _CharT* __s) - { return this->assign(__s); } - - /** - * @brief Set value to string of length 1. - * @param c Source character. - * - * Assigning to a character makes this string length 1 and - * (*this)[0] == @a c. - */ - basic_string& - operator=(_CharT __c) - { - this->assign(1, __c); - return *this; - } - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Set value to string constructed from initializer list. - * @param l std::initializer_list. - */ - basic_string& - operator=(initializer_list<_CharT> __l) - { - this->assign (__l.begin(), __l.end()); - return *this; - } -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - // Iterators: - /** - * Returns a read/write iterator that points to the first character in - * the %string. Unshares the string. - */ - iterator - begin() - { - _M_leak(); - return iterator(_M_data()); - } - - /** - * Returns a read-only (constant) iterator that points to the first - * character in the %string. - */ - const_iterator - begin() const - { return const_iterator(_M_data()); } - - /** - * Returns a read/write iterator that points one past the last - * character in the %string. Unshares the string. - */ - iterator - end() - { - _M_leak(); - return iterator(_M_data() + this->size()); - } - - /** - * Returns a read-only (constant) iterator that points one past the - * last character in the %string. - */ - const_iterator - end() const - { return const_iterator(_M_data() + this->size()); } - - /** - * Returns a read/write reverse iterator that points to the last - * character in the %string. Iteration is done in reverse element - * order. Unshares the string. - */ - reverse_iterator - rbegin() - { return reverse_iterator(this->end()); } - - /** - * Returns a read-only (constant) reverse iterator that points - * to the last character in the %string. Iteration is done in - * reverse element order. - */ - const_reverse_iterator - rbegin() const - { return const_reverse_iterator(this->end()); } - - /** - * Returns a read/write reverse iterator that points to one before the - * first character in the %string. Iteration is done in reverse - * element order. Unshares the string. - */ - reverse_iterator - rend() - { return reverse_iterator(this->begin()); } - - /** - * Returns a read-only (constant) reverse iterator that points - * to one before the first character in the %string. Iteration - * is done in reverse element order. - */ - const_reverse_iterator - rend() const - { return const_reverse_iterator(this->begin()); } - - public: - // Capacity: - /// Returns the number of characters in the string, not including any - /// null-termination. - size_type - size() const - { return _M_rep()->_M_length; } - - /// Returns the number of characters in the string, not including any - /// null-termination. - size_type - length() const - { return _M_rep()->_M_length; } - - /// Returns the size() of the largest possible %string. - size_type - max_size() const - { return _Rep::_S_max_size; } - - /** - * @brief Resizes the %string to the specified number of characters. - * @param n Number of characters the %string should contain. - * @param c Character to fill any new elements. - * - * This function will %resize the %string to the specified - * number of characters. If the number is smaller than the - * %string's current size the %string is truncated, otherwise - * the %string is extended and new elements are set to @a c. - */ - void - resize(size_type __n, _CharT __c); - - /** - * @brief Resizes the %string to the specified number of characters. - * @param n Number of characters the %string should contain. - * - * This function will resize the %string to the specified length. If - * the new size is smaller than the %string's current size the %string - * is truncated, otherwise the %string is extended and new characters - * are default-constructed. For basic types such as char, this means - * setting them to 0. - */ - void - resize(size_type __n) - { this->resize(__n, _CharT()); } - - /** - * Returns the total number of characters that the %string can hold - * before needing to allocate more memory. - */ - size_type - capacity() const - { return _M_rep()->_M_capacity; } - - /** - * @brief Attempt to preallocate enough memory for specified number of - * characters. - * @param res_arg Number of characters required. - * @throw std::length_error If @a res_arg exceeds @c max_size(). - * - * This function attempts to reserve enough memory for the - * %string to hold the specified number of characters. If the - * number requested is more than max_size(), length_error is - * thrown. - * - * The advantage of this function is that if optimal code is a - * necessity and the user can determine the string length that will be - * required, the user can reserve the memory in %advance, and thus - * prevent a possible reallocation of memory and copying of %string - * data. - */ - void - reserve(size_type __res_arg = 0); - - /** - * Erases the string, making it empty. - */ - void - clear() - { _M_mutate(0, this->size(), 0); } - - /** - * Returns true if the %string is empty. Equivalent to *this == "". - */ - bool - empty() const - { return this->size() == 0; } - - // Element access: - /** - * @brief Subscript access to the data contained in the %string. - * @param pos The index of the character to access. - * @return Read-only (constant) reference to the character. - * - * This operator allows for easy, array-style, data access. - * Note that data access with this operator is unchecked and - * out_of_range lookups are not defined. (For checked lookups - * see at().) - */ - const_reference - operator[] (size_type __pos) const - { - _GLIBCXX_DEBUG_ASSERT(__pos <= size()); - return _M_data()[__pos]; - } - - /** - * @brief Subscript access to the data contained in the %string. - * @param pos The index of the character to access. - * @return Read/write reference to the character. - * - * This operator allows for easy, array-style, data access. - * Note that data access with this operator is unchecked and - * out_of_range lookups are not defined. (For checked lookups - * see at().) Unshares the string. - */ - reference - operator[](size_type __pos) - { - // allow pos == size() as v3 extension: - _GLIBCXX_DEBUG_ASSERT(__pos <= size()); - // but be strict in pedantic mode: - _GLIBCXX_DEBUG_PEDASSERT(__pos < size()); - _M_leak(); - return _M_data()[__pos]; - } - - /** - * @brief Provides access to the data contained in the %string. - * @param n The index of the character to access. - * @return Read-only (const) reference to the character. - * @throw std::out_of_range If @a n is an invalid index. - * - * This function provides for safer data access. The parameter is - * first checked that it is in the range of the string. The function - * throws out_of_range if the check fails. - */ - const_reference - at(size_type __n) const - { - if (__n >= this->size()) - __throw_out_of_range(__N("basic_string::at")); - return _M_data()[__n]; - } - - /** - * @brief Provides access to the data contained in the %string. - * @param n The index of the character to access. - * @return Read/write reference to the character. - * @throw std::out_of_range If @a n is an invalid index. - * - * This function provides for safer data access. The parameter is - * first checked that it is in the range of the string. The function - * throws out_of_range if the check fails. Success results in - * unsharing the string. - */ - reference - at(size_type __n) - { - if (__n >= size()) - __throw_out_of_range(__N("basic_string::at")); - _M_leak(); - return _M_data()[__n]; - } - - // Modifiers: - /** - * @brief Append a string to this string. - * @param str The string to append. - * @return Reference to this string. - */ - basic_string& - operator+=(const basic_string& __str) - { return this->append(__str); } - - /** - * @brief Append a C string. - * @param s The C string to append. - * @return Reference to this string. - */ - basic_string& - operator+=(const _CharT* __s) - { return this->append(__s); } - - /** - * @brief Append a character. - * @param c The character to append. - * @return Reference to this string. - */ - basic_string& - operator+=(_CharT __c) - { - this->push_back(__c); - return *this; - } - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Append an initializer_list of characters. - * @param l The initializer_list of characters to be appended. - * @return Reference to this string. - */ - basic_string& - operator+=(initializer_list<_CharT> __l) - { return this->append(__l.begin(), __l.end()); } -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - /** - * @brief Append a string to this string. - * @param str The string to append. - * @return Reference to this string. - */ - basic_string& - append(const basic_string& __str); - - /** - * @brief Append a substring. - * @param str The string to append. - * @param pos Index of the first character of str to append. - * @param n The number of characters to append. - * @return Reference to this string. - * @throw std::out_of_range if @a pos is not a valid index. - * - * This function appends @a n characters from @a str starting at @a pos - * to this string. If @a n is is larger than the number of available - * characters in @a str, the remainder of @a str is appended. - */ - basic_string& - append(const basic_string& __str, size_type __pos, size_type __n); - - /** - * @brief Append a C substring. - * @param s The C string to append. - * @param n The number of characters to append. - * @return Reference to this string. - */ - basic_string& - append(const _CharT* __s, size_type __n); - - /** - * @brief Append a C string. - * @param s The C string to append. - * @return Reference to this string. - */ - basic_string& - append(const _CharT* __s) - { - __glibcxx_requires_string(__s); - return this->append(__s, traits_type::length(__s)); - } - - /** - * @brief Append multiple characters. - * @param n The number of characters to append. - * @param c The character to use. - * @return Reference to this string. - * - * Appends n copies of c to this string. - */ - basic_string& - append(size_type __n, _CharT __c); - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Append an initializer_list of characters. - * @param l The initializer_list of characters to append. - * @return Reference to this string. - */ - basic_string& - append(initializer_list<_CharT> __l) - { return this->append(__l.begin(), __l.end()); } -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - /** - * @brief Append a range of characters. - * @param first Iterator referencing the first character to append. - * @param last Iterator marking the end of the range. - * @return Reference to this string. - * - * Appends characters in the range [first,last) to this string. - */ - template<class _InputIterator> - basic_string& - append(_InputIterator __first, _InputIterator __last) - { return this->replace(_M_iend(), _M_iend(), __first, __last); } - - /** - * @brief Append a single character. - * @param c Character to append. - */ - void - push_back(_CharT __c) - { - const size_type __len = 1 + this->size(); - if (__len > this->capacity() || _M_rep()->_M_is_shared()) - this->reserve(__len); - traits_type::assign(_M_data()[this->size()], __c); - _M_rep()->_M_set_length_and_sharable(__len); - } - - /** - * @brief Set value to contents of another string. - * @param str Source string to use. - * @return Reference to this string. - */ - basic_string& - assign(const basic_string& __str); - - /** - * @brief Set value to a substring of a string. - * @param str The string to use. - * @param pos Index of the first character of str. - * @param n Number of characters to use. - * @return Reference to this string. - * @throw std::out_of_range if @a pos is not a valid index. - * - * This function sets this string to the substring of @a str consisting - * of @a n characters at @a pos. If @a n is is larger than the number - * of available characters in @a str, the remainder of @a str is used. - */ - basic_string& - assign(const basic_string& __str, size_type __pos, size_type __n) - { return this->assign(__str._M_data() - + __str._M_check(__pos, "basic_string::assign"), - __str._M_limit(__pos, __n)); } - - /** - * @brief Set value to a C substring. - * @param s The C string to use. - * @param n Number of characters to use. - * @return Reference to this string. - * - * This function sets the value of this string to the first @a n - * characters of @a s. If @a n is is larger than the number of - * available characters in @a s, the remainder of @a s is used. - */ - basic_string& - assign(const _CharT* __s, size_type __n); - - /** - * @brief Set value to contents of a C string. - * @param s The C string to use. - * @return Reference to this string. - * - * This function sets the value of this string to the value of @a s. - * The data is copied, so there is no dependence on @a s once the - * function returns. - */ - basic_string& - assign(const _CharT* __s) - { - __glibcxx_requires_string(__s); - return this->assign(__s, traits_type::length(__s)); - } - - /** - * @brief Set value to multiple characters. - * @param n Length of the resulting string. - * @param c The character to use. - * @return Reference to this string. - * - * This function sets the value of this string to @a n copies of - * character @a c. - */ - basic_string& - assign(size_type __n, _CharT __c) - { return _M_replace_aux(size_type(0), this->size(), __n, __c); } - - /** - * @brief Set value to a range of characters. - * @param first Iterator referencing the first character to append. - * @param last Iterator marking the end of the range. - * @return Reference to this string. - * - * Sets value of string to characters in the range [first,last). - */ - template<class _InputIterator> - basic_string& - assign(_InputIterator __first, _InputIterator __last) - { return this->replace(_M_ibegin(), _M_iend(), __first, __last); } - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Set value to an initializer_list of characters. - * @param l The initializer_list of characters to assign. - * @return Reference to this string. - */ - basic_string& - assign(initializer_list<_CharT> __l) - { return this->assign(__l.begin(), __l.end()); } -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - /** - * @brief Insert multiple characters. - * @param p Iterator referencing location in string to insert at. - * @param n Number of characters to insert - * @param c The character to insert. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Inserts @a n copies of character @a c starting at the position - * referenced by iterator @a p. If adding characters causes the length - * to exceed max_size(), length_error is thrown. The value of the - * string doesn't change if an error is thrown. - */ - void - insert(iterator __p, size_type __n, _CharT __c) - { this->replace(__p, __p, __n, __c); } - - /** - * @brief Insert a range of characters. - * @param p Iterator referencing location in string to insert at. - * @param beg Start of range. - * @param end End of range. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Inserts characters in range [beg,end). If adding characters causes - * the length to exceed max_size(), length_error is thrown. The value - * of the string doesn't change if an error is thrown. - */ - template<class _InputIterator> - void - insert(iterator __p, _InputIterator __beg, _InputIterator __end) - { this->replace(__p, __p, __beg, __end); } - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Insert an initializer_list of characters. - * @param p Iterator referencing location in string to insert at. - * @param l The initializer_list of characters to insert. - * @throw std::length_error If new length exceeds @c max_size(). - */ - void - insert(iterator __p, initializer_list<_CharT> __l) - { this->insert(__p, __l.begin(), __l.end()); } -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - /** - * @brief Insert value of a string. - * @param pos1 Iterator referencing location in string to insert at. - * @param str The string to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Inserts value of @a str starting at @a pos1. If adding characters - * causes the length to exceed max_size(), length_error is thrown. The - * value of the string doesn't change if an error is thrown. - */ - basic_string& - insert(size_type __pos1, const basic_string& __str) - { return this->insert(__pos1, __str, size_type(0), __str.size()); } - - /** - * @brief Insert a substring. - * @param pos1 Iterator referencing location in string to insert at. - * @param str The string to insert. - * @param pos2 Start of characters in str to insert. - * @param n Number of characters to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * @throw std::out_of_range If @a pos1 > size() or - * @a pos2 > @a str.size(). - * - * Starting at @a pos1, insert @a n character of @a str beginning with - * @a pos2. If adding characters causes the length to exceed - * max_size(), length_error is thrown. If @a pos1 is beyond the end of - * this string or @a pos2 is beyond the end of @a str, out_of_range is - * thrown. The value of the string doesn't change if an error is - * thrown. - */ - basic_string& - insert(size_type __pos1, const basic_string& __str, - size_type __pos2, size_type __n) - { return this->insert(__pos1, __str._M_data() - + __str._M_check(__pos2, "basic_string::insert"), - __str._M_limit(__pos2, __n)); } - - /** - * @brief Insert a C substring. - * @param pos Iterator referencing location in string to insert at. - * @param s The C string to insert. - * @param n The number of characters to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * @throw std::out_of_range If @a pos is beyond the end of this - * string. - * - * Inserts the first @a n characters of @a s starting at @a pos. If - * adding characters causes the length to exceed max_size(), - * length_error is thrown. If @a pos is beyond end(), out_of_range is - * thrown. The value of the string doesn't change if an error is - * thrown. - */ - basic_string& - insert(size_type __pos, const _CharT* __s, size_type __n); - - /** - * @brief Insert a C string. - * @param pos Iterator referencing location in string to insert at. - * @param s The C string to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * @throw std::out_of_range If @a pos is beyond the end of this - * string. - * - * Inserts the first @a n characters of @a s starting at @a pos. If - * adding characters causes the length to exceed max_size(), - * length_error is thrown. If @a pos is beyond end(), out_of_range is - * thrown. The value of the string doesn't change if an error is - * thrown. - */ - basic_string& - insert(size_type __pos, const _CharT* __s) - { - __glibcxx_requires_string(__s); - return this->insert(__pos, __s, traits_type::length(__s)); - } - - /** - * @brief Insert multiple characters. - * @param pos Index in string to insert at. - * @param n Number of characters to insert - * @param c The character to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * @throw std::out_of_range If @a pos is beyond the end of this - * string. - * - * Inserts @a n copies of character @a c starting at index @a pos. If - * adding characters causes the length to exceed max_size(), - * length_error is thrown. If @a pos > length(), out_of_range is - * thrown. The value of the string doesn't change if an error is - * thrown. - */ - basic_string& - insert(size_type __pos, size_type __n, _CharT __c) - { return _M_replace_aux(_M_check(__pos, "basic_string::insert"), - size_type(0), __n, __c); } - - /** - * @brief Insert one character. - * @param p Iterator referencing position in string to insert at. - * @param c The character to insert. - * @return Iterator referencing newly inserted char. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Inserts character @a c at position referenced by @a p. If adding - * character causes the length to exceed max_size(), length_error is - * thrown. If @a p is beyond end of string, out_of_range is thrown. - * The value of the string doesn't change if an error is thrown. - */ - iterator - insert(iterator __p, _CharT __c) - { - _GLIBCXX_DEBUG_PEDASSERT(__p >= _M_ibegin() && __p <= _M_iend()); - const size_type __pos = __p - _M_ibegin(); - _M_replace_aux(__pos, size_type(0), size_type(1), __c); - _M_rep()->_M_set_leaked(); - return iterator(_M_data() + __pos); - } - - /** - * @brief Remove characters. - * @param pos Index of first character to remove (default 0). - * @param n Number of characters to remove (default remainder). - * @return Reference to this string. - * @throw std::out_of_range If @a pos is beyond the end of this - * string. - * - * Removes @a n characters from this string starting at @a pos. The - * length of the string is reduced by @a n. If there are < @a n - * characters to remove, the remainder of the string is truncated. If - * @a p is beyond end of string, out_of_range is thrown. The value of - * the string doesn't change if an error is thrown. - */ - basic_string& - erase(size_type __pos = 0, size_type __n = npos) - { - _M_mutate(_M_check(__pos, "basic_string::erase"), - _M_limit(__pos, __n), size_type(0)); - return *this; - } - - /** - * @brief Remove one character. - * @param position Iterator referencing the character to remove. - * @return iterator referencing same location after removal. - * - * Removes the character at @a position from this string. The value - * of the string doesn't change if an error is thrown. - */ - iterator - erase(iterator __position) - { - _GLIBCXX_DEBUG_PEDASSERT(__position >= _M_ibegin() - && __position < _M_iend()); - const size_type __pos = __position - _M_ibegin(); - _M_mutate(__pos, size_type(1), size_type(0)); - _M_rep()->_M_set_leaked(); - return iterator(_M_data() + __pos); - } - - /** - * @brief Remove a range of characters. - * @param first Iterator referencing the first character to remove. - * @param last Iterator referencing the end of the range. - * @return Iterator referencing location of first after removal. - * - * Removes the characters in the range [first,last) from this string. - * The value of the string doesn't change if an error is thrown. - */ - iterator - erase(iterator __first, iterator __last) - { - _GLIBCXX_DEBUG_PEDASSERT(__first >= _M_ibegin() && __first <= __last - && __last <= _M_iend()); - const size_type __pos = __first - _M_ibegin(); - _M_mutate(__pos, __last - __first, size_type(0)); - _M_rep()->_M_set_leaked(); - return iterator(_M_data() + __pos); - } - - /** - * @brief Replace characters with value from another string. - * @param pos Index of first character to replace. - * @param n Number of characters to be replaced. - * @param str String to insert. - * @return Reference to this string. - * @throw std::out_of_range If @a pos is beyond the end of this - * string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [pos,pos+n) from this string. - * In place, the value of @a str is inserted. If @a pos is beyond end - * of string, out_of_range is thrown. If the length of the result - * exceeds max_size(), length_error is thrown. The value of the string - * doesn't change if an error is thrown. - */ - basic_string& - replace(size_type __pos, size_type __n, const basic_string& __str) - { return this->replace(__pos, __n, __str._M_data(), __str.size()); } - - /** - * @brief Replace characters with value from another string. - * @param pos1 Index of first character to replace. - * @param n1 Number of characters to be replaced. - * @param str String to insert. - * @param pos2 Index of first character of str to use. - * @param n2 Number of characters from str to use. - * @return Reference to this string. - * @throw std::out_of_range If @a pos1 > size() or @a pos2 > - * str.size(). - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [pos1,pos1 + n) from this - * string. In place, the value of @a str is inserted. If @a pos is - * beyond end of string, out_of_range is thrown. If the length of the - * result exceeds max_size(), length_error is thrown. The value of the - * string doesn't change if an error is thrown. - */ - basic_string& - replace(size_type __pos1, size_type __n1, const basic_string& __str, - size_type __pos2, size_type __n2) - { return this->replace(__pos1, __n1, __str._M_data() - + __str._M_check(__pos2, "basic_string::replace"), - __str._M_limit(__pos2, __n2)); } - - /** - * @brief Replace characters with value of a C substring. - * @param pos Index of first character to replace. - * @param n1 Number of characters to be replaced. - * @param s C string to insert. - * @param n2 Number of characters from @a s to use. - * @return Reference to this string. - * @throw std::out_of_range If @a pos1 > size(). - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [pos,pos + n1) from this string. - * In place, the first @a n2 characters of @a s are inserted, or all - * of @a s if @a n2 is too large. If @a pos is beyond end of string, - * out_of_range is thrown. If the length of result exceeds max_size(), - * length_error is thrown. The value of the string doesn't change if - * an error is thrown. - */ - basic_string& - replace(size_type __pos, size_type __n1, const _CharT* __s, - size_type __n2); - - /** - * @brief Replace characters with value of a C string. - * @param pos Index of first character to replace. - * @param n1 Number of characters to be replaced. - * @param s C string to insert. - * @return Reference to this string. - * @throw std::out_of_range If @a pos > size(). - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [pos,pos + n1) from this string. - * In place, the first @a n characters of @a s are inserted. If @a - * pos is beyond end of string, out_of_range is thrown. If the length - * of result exceeds max_size(), length_error is thrown. The value of - * the string doesn't change if an error is thrown. - */ - basic_string& - replace(size_type __pos, size_type __n1, const _CharT* __s) - { - __glibcxx_requires_string(__s); - return this->replace(__pos, __n1, __s, traits_type::length(__s)); - } - - /** - * @brief Replace characters with multiple characters. - * @param pos Index of first character to replace. - * @param n1 Number of characters to be replaced. - * @param n2 Number of characters to insert. - * @param c Character to insert. - * @return Reference to this string. - * @throw std::out_of_range If @a pos > size(). - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [pos,pos + n1) from this string. - * In place, @a n2 copies of @a c are inserted. If @a pos is beyond - * end of string, out_of_range is thrown. If the length of result - * exceeds max_size(), length_error is thrown. The value of the string - * doesn't change if an error is thrown. - */ - basic_string& - replace(size_type __pos, size_type __n1, size_type __n2, _CharT __c) - { return _M_replace_aux(_M_check(__pos, "basic_string::replace"), - _M_limit(__pos, __n1), __n2, __c); } - - /** - * @brief Replace range of characters with string. - * @param i1 Iterator referencing start of range to replace. - * @param i2 Iterator referencing end of range to replace. - * @param str String value to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [i1,i2). In place, the value of - * @a str is inserted. If the length of result exceeds max_size(), - * length_error is thrown. The value of the string doesn't change if - * an error is thrown. - */ - basic_string& - replace(iterator __i1, iterator __i2, const basic_string& __str) - { return this->replace(__i1, __i2, __str._M_data(), __str.size()); } - - /** - * @brief Replace range of characters with C substring. - * @param i1 Iterator referencing start of range to replace. - * @param i2 Iterator referencing end of range to replace. - * @param s C string value to insert. - * @param n Number of characters from s to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [i1,i2). In place, the first @a - * n characters of @a s are inserted. If the length of result exceeds - * max_size(), length_error is thrown. The value of the string doesn't - * change if an error is thrown. - */ - basic_string& - replace(iterator __i1, iterator __i2, const _CharT* __s, size_type __n) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - return this->replace(__i1 - _M_ibegin(), __i2 - __i1, __s, __n); - } - - /** - * @brief Replace range of characters with C string. - * @param i1 Iterator referencing start of range to replace. - * @param i2 Iterator referencing end of range to replace. - * @param s C string value to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [i1,i2). In place, the - * characters of @a s are inserted. If the length of result exceeds - * max_size(), length_error is thrown. The value of the string doesn't - * change if an error is thrown. - */ - basic_string& - replace(iterator __i1, iterator __i2, const _CharT* __s) - { - __glibcxx_requires_string(__s); - return this->replace(__i1, __i2, __s, traits_type::length(__s)); - } - - /** - * @brief Replace range of characters with multiple characters - * @param i1 Iterator referencing start of range to replace. - * @param i2 Iterator referencing end of range to replace. - * @param n Number of characters to insert. - * @param c Character to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [i1,i2). In place, @a n copies - * of @a c are inserted. If the length of result exceeds max_size(), - * length_error is thrown. The value of the string doesn't change if - * an error is thrown. - */ - basic_string& - replace(iterator __i1, iterator __i2, size_type __n, _CharT __c) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - return _M_replace_aux(__i1 - _M_ibegin(), __i2 - __i1, __n, __c); - } - - /** - * @brief Replace range of characters with range. - * @param i1 Iterator referencing start of range to replace. - * @param i2 Iterator referencing end of range to replace. - * @param k1 Iterator referencing start of range to insert. - * @param k2 Iterator referencing end of range to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [i1,i2). In place, characters - * in the range [k1,k2) are inserted. If the length of result exceeds - * max_size(), length_error is thrown. The value of the string doesn't - * change if an error is thrown. - */ - template<class _InputIterator> - basic_string& - replace(iterator __i1, iterator __i2, - _InputIterator __k1, _InputIterator __k2) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - __glibcxx_requires_valid_range(__k1, __k2); - typedef typename std::__is_integer<_InputIterator>::__type _Integral; - return _M_replace_dispatch(__i1, __i2, __k1, __k2, _Integral()); - } - - // Specializations for the common case of pointer and iterator: - // useful to avoid the overhead of temporary buffering in _M_replace. - basic_string& - replace(iterator __i1, iterator __i2, _CharT* __k1, _CharT* __k2) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - __glibcxx_requires_valid_range(__k1, __k2); - return this->replace(__i1 - _M_ibegin(), __i2 - __i1, - __k1, __k2 - __k1); - } - - basic_string& - replace(iterator __i1, iterator __i2, - const _CharT* __k1, const _CharT* __k2) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - __glibcxx_requires_valid_range(__k1, __k2); - return this->replace(__i1 - _M_ibegin(), __i2 - __i1, - __k1, __k2 - __k1); - } - - basic_string& - replace(iterator __i1, iterator __i2, iterator __k1, iterator __k2) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - __glibcxx_requires_valid_range(__k1, __k2); - return this->replace(__i1 - _M_ibegin(), __i2 - __i1, - __k1.base(), __k2 - __k1); - } - - basic_string& - replace(iterator __i1, iterator __i2, - const_iterator __k1, const_iterator __k2) - { - _GLIBCXX_DEBUG_PEDASSERT(_M_ibegin() <= __i1 && __i1 <= __i2 - && __i2 <= _M_iend()); - __glibcxx_requires_valid_range(__k1, __k2); - return this->replace(__i1 - _M_ibegin(), __i2 - __i1, - __k1.base(), __k2 - __k1); - } - -#ifdef __GXX_EXPERIMENTAL_CXX0X__ - /** - * @brief Replace range of characters with initializer_list. - * @param i1 Iterator referencing start of range to replace. - * @param i2 Iterator referencing end of range to replace. - * @param l The initializer_list of characters to insert. - * @return Reference to this string. - * @throw std::length_error If new length exceeds @c max_size(). - * - * Removes the characters in the range [i1,i2). In place, characters - * in the range [k1,k2) are inserted. If the length of result exceeds - * max_size(), length_error is thrown. The value of the string doesn't - * change if an error is thrown. - */ - basic_string& replace(iterator __i1, iterator __i2, - initializer_list<_CharT> __l) - { return this->replace(__i1, __i2, __l.begin(), __l.end()); } -#endif // __GXX_EXPERIMENTAL_CXX0X__ - - private: - template<class _Integer> - basic_string& - _M_replace_dispatch(iterator __i1, iterator __i2, _Integer __n, - _Integer __val, __true_type) - { return _M_replace_aux(__i1 - _M_ibegin(), __i2 - __i1, __n, __val); } - - template<class _InputIterator> - basic_string& - _M_replace_dispatch(iterator __i1, iterator __i2, _InputIterator __k1, - _InputIterator __k2, __false_type); - - basic_string& - _M_replace_aux(size_type __pos1, size_type __n1, size_type __n2, - _CharT __c); - - basic_string& - _M_replace_safe(size_type __pos1, size_type __n1, const _CharT* __s, - size_type __n2); - - // _S_construct_aux is used to implement the 21.3.1 para 15 which - // requires special behaviour if _InIter is an integral type - template<class _InIterator> - static _CharT* - _S_construct_aux(_InIterator __beg, _InIterator __end, - const _Alloc& __a, __false_type) - { - typedef typename iterator_traits<_InIterator>::iterator_category _Tag; - return _S_construct(__beg, __end, __a, _Tag()); - } - - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 438. Ambiguity in the "do the right thing" clause - template<class _Integer> - static _CharT* - _S_construct_aux(_Integer __beg, _Integer __end, - const _Alloc& __a, __true_type) - { return _S_construct(static_cast<size_type>(__beg), __end, __a); } - - template<class _InIterator> - static _CharT* - _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a) - { - typedef typename std::__is_integer<_InIterator>::__type _Integral; - return _S_construct_aux(__beg, __end, __a, _Integral()); - } - - // For Input Iterators, used in istreambuf_iterators, etc. - template<class _InIterator> - static _CharT* - _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a, - input_iterator_tag); - - // For forward_iterators up to random_access_iterators, used for - // string::iterator, _CharT*, etc. - template<class _FwdIterator> - static _CharT* - _S_construct(_FwdIterator __beg, _FwdIterator __end, const _Alloc& __a, - forward_iterator_tag); - - static _CharT* - _S_construct(size_type __req, _CharT __c, const _Alloc& __a); - - public: - - /** - * @brief Copy substring into C string. - * @param s C string to copy value into. - * @param n Number of characters to copy. - * @param pos Index of first character to copy. - * @return Number of characters actually copied - * @throw std::out_of_range If pos > size(). - * - * Copies up to @a n characters starting at @a pos into the C string @a - * s. If @a pos is greater than size(), out_of_range is thrown. - */ - size_type - copy(_CharT* __s, size_type __n, size_type __pos = 0) const; - - /** - * @brief Swap contents with another string. - * @param s String to swap with. - * - * Exchanges the contents of this string with that of @a s in constant - * time. - */ - void - swap(basic_string& __s); - - // String operations: - /** - * @brief Return const pointer to null-terminated contents. - * - * This is a handle to internal data. Do not modify or dire things may - * happen. - */ - const _CharT* - c_str() const - { return _M_data(); } - - /** - * @brief Return const pointer to contents. - * - * This is a handle to internal data. Do not modify or dire things may - * happen. - */ - const _CharT* - data() const - { return _M_data(); } - - /** - * @brief Return copy of allocator used to construct this string. - */ - allocator_type - get_allocator() const - { return _M_dataplus; } - - /** - * @brief Find position of a C substring. - * @param s C string to locate. - * @param pos Index of character to search from. - * @param n Number of characters from @a s to search for. - * @return Index of start of first occurrence. - * - * Starting from @a pos, searches forward for the first @a n characters - * in @a s within this string. If found, returns the index where it - * begins. If not found, returns npos. - */ - size_type - find(const _CharT* __s, size_type __pos, size_type __n) const; - - /** - * @brief Find position of a string. - * @param str String to locate. - * @param pos Index of character to search from (default 0). - * @return Index of start of first occurrence. - * - * Starting from @a pos, searches forward for value of @a str within - * this string. If found, returns the index where it begins. If not - * found, returns npos. - */ - size_type - find(const basic_string& __str, size_type __pos = 0) const - { return this->find(__str.data(), __pos, __str.size()); } - - /** - * @brief Find position of a C string. - * @param s C string to locate. - * @param pos Index of character to search from (default 0). - * @return Index of start of first occurrence. - * - * Starting from @a pos, searches forward for the value of @a s within - * this string. If found, returns the index where it begins. If not - * found, returns npos. - */ - size_type - find(const _CharT* __s, size_type __pos = 0) const - { - __glibcxx_requires_string(__s); - return this->find(__s, __pos, traits_type::length(__s)); - } - - /** - * @brief Find position of a character. - * @param c Character to locate. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for @a c within this string. - * If found, returns the index where it was found. If not found, - * returns npos. - */ - size_type - find(_CharT __c, size_type __pos = 0) const; - - /** - * @brief Find last position of a string. - * @param str String to locate. - * @param pos Index of character to search back from (default end). - * @return Index of start of last occurrence. - * - * Starting from @a pos, searches backward for value of @a str within - * this string. If found, returns the index where it begins. If not - * found, returns npos. - */ - size_type - rfind(const basic_string& __str, size_type __pos = npos) const - { return this->rfind(__str.data(), __pos, __str.size()); } - - /** - * @brief Find last position of a C substring. - * @param s C string to locate. - * @param pos Index of character to search back from. - * @param n Number of characters from s to search for. - * @return Index of start of last occurrence. - * - * Starting from @a pos, searches backward for the first @a n - * characters in @a s within this string. If found, returns the index - * where it begins. If not found, returns npos. - */ - size_type - rfind(const _CharT* __s, size_type __pos, size_type __n) const; - - /** - * @brief Find last position of a C string. - * @param s C string to locate. - * @param pos Index of character to start search at (default end). - * @return Index of start of last occurrence. - * - * Starting from @a pos, searches backward for the value of @a s within - * this string. If found, returns the index where it begins. If not - * found, returns npos. - */ - size_type - rfind(const _CharT* __s, size_type __pos = npos) const - { - __glibcxx_requires_string(__s); - return this->rfind(__s, __pos, traits_type::length(__s)); - } - - /** - * @brief Find last position of a character. - * @param c Character to locate. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for @a c within this string. - * If found, returns the index where it was found. If not found, - * returns npos. - */ - size_type - rfind(_CharT __c, size_type __pos = npos) const; - - /** - * @brief Find position of a character of string. - * @param str String containing characters to locate. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for one of the characters of - * @a str within this string. If found, returns the index where it was - * found. If not found, returns npos. - */ - size_type - find_first_of(const basic_string& __str, size_type __pos = 0) const - { return this->find_first_of(__str.data(), __pos, __str.size()); } - - /** - * @brief Find position of a character of C substring. - * @param s String containing characters to locate. - * @param pos Index of character to search from. - * @param n Number of characters from s to search for. - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for one of the first @a n - * characters of @a s within this string. If found, returns the index - * where it was found. If not found, returns npos. - */ - size_type - find_first_of(const _CharT* __s, size_type __pos, size_type __n) const; - - /** - * @brief Find position of a character of C string. - * @param s String containing characters to locate. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for one of the characters of - * @a s within this string. If found, returns the index where it was - * found. If not found, returns npos. - */ - size_type - find_first_of(const _CharT* __s, size_type __pos = 0) const - { - __glibcxx_requires_string(__s); - return this->find_first_of(__s, __pos, traits_type::length(__s)); - } - - /** - * @brief Find position of a character. - * @param c Character to locate. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for the character @a c within - * this string. If found, returns the index where it was found. If - * not found, returns npos. - * - * Note: equivalent to find(c, pos). - */ - size_type - find_first_of(_CharT __c, size_type __pos = 0) const - { return this->find(__c, __pos); } - - /** - * @brief Find last position of a character of string. - * @param str String containing characters to locate. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for one of the characters of - * @a str within this string. If found, returns the index where it was - * found. If not found, returns npos. - */ - size_type - find_last_of(const basic_string& __str, size_type __pos = npos) const - { return this->find_last_of(__str.data(), __pos, __str.size()); } - - /** - * @brief Find last position of a character of C substring. - * @param s C string containing characters to locate. - * @param pos Index of character to search back from. - * @param n Number of characters from s to search for. - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for one of the first @a n - * characters of @a s within this string. If found, returns the index - * where it was found. If not found, returns npos. - */ - size_type - find_last_of(const _CharT* __s, size_type __pos, size_type __n) const; - - /** - * @brief Find last position of a character of C string. - * @param s C string containing characters to locate. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for one of the characters of - * @a s within this string. If found, returns the index where it was - * found. If not found, returns npos. - */ - size_type - find_last_of(const _CharT* __s, size_type __pos = npos) const - { - __glibcxx_requires_string(__s); - return this->find_last_of(__s, __pos, traits_type::length(__s)); - } - - /** - * @brief Find last position of a character. - * @param c Character to locate. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for @a c within this string. - * If found, returns the index where it was found. If not found, - * returns npos. - * - * Note: equivalent to rfind(c, pos). - */ - size_type - find_last_of(_CharT __c, size_type __pos = npos) const - { return this->rfind(__c, __pos); } - - /** - * @brief Find position of a character not in string. - * @param str String containing characters to avoid. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for a character not contained - * in @a str within this string. If found, returns the index where it - * was found. If not found, returns npos. - */ - size_type - find_first_not_of(const basic_string& __str, size_type __pos = 0) const - { return this->find_first_not_of(__str.data(), __pos, __str.size()); } - - /** - * @brief Find position of a character not in C substring. - * @param s C string containing characters to avoid. - * @param pos Index of character to search from. - * @param n Number of characters from s to consider. - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for a character not contained - * in the first @a n characters of @a s within this string. If found, - * returns the index where it was found. If not found, returns npos. - */ - size_type - find_first_not_of(const _CharT* __s, size_type __pos, - size_type __n) const; - - /** - * @brief Find position of a character not in C string. - * @param s C string containing characters to avoid. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for a character not contained - * in @a s within this string. If found, returns the index where it - * was found. If not found, returns npos. - */ - size_type - find_first_not_of(const _CharT* __s, size_type __pos = 0) const - { - __glibcxx_requires_string(__s); - return this->find_first_not_of(__s, __pos, traits_type::length(__s)); - } - - /** - * @brief Find position of a different character. - * @param c Character to avoid. - * @param pos Index of character to search from (default 0). - * @return Index of first occurrence. - * - * Starting from @a pos, searches forward for a character other than @a c - * within this string. If found, returns the index where it was found. - * If not found, returns npos. - */ - size_type - find_first_not_of(_CharT __c, size_type __pos = 0) const; - - /** - * @brief Find last position of a character not in string. - * @param str String containing characters to avoid. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for a character not - * contained in @a str within this string. If found, returns the index - * where it was found. If not found, returns npos. - */ - size_type - find_last_not_of(const basic_string& __str, size_type __pos = npos) const - { return this->find_last_not_of(__str.data(), __pos, __str.size()); } - - /** - * @brief Find last position of a character not in C substring. - * @param s C string containing characters to avoid. - * @param pos Index of character to search back from. - * @param n Number of characters from s to consider. - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for a character not - * contained in the first @a n characters of @a s within this string. - * If found, returns the index where it was found. If not found, - * returns npos. - */ - size_type - find_last_not_of(const _CharT* __s, size_type __pos, - size_type __n) const; - /** - * @brief Find last position of a character not in C string. - * @param s C string containing characters to avoid. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for a character not - * contained in @a s within this string. If found, returns the index - * where it was found. If not found, returns npos. - */ - size_type - find_last_not_of(const _CharT* __s, size_type __pos = npos) const - { - __glibcxx_requires_string(__s); - return this->find_last_not_of(__s, __pos, traits_type::length(__s)); - } - - /** - * @brief Find last position of a different character. - * @param c Character to avoid. - * @param pos Index of character to search back from (default end). - * @return Index of last occurrence. - * - * Starting from @a pos, searches backward for a character other than - * @a c within this string. If found, returns the index where it was - * found. If not found, returns npos. - */ - size_type - find_last_not_of(_CharT __c, size_type __pos = npos) const; - - /** - * @brief Get a substring. - * @param pos Index of first character (default 0). - * @param n Number of characters in substring (default remainder). - * @return The new string. - * @throw std::out_of_range If pos > size(). - * - * Construct and return a new string using the @a n characters starting - * at @a pos. If the string is too short, use the remainder of the - * characters. If @a pos is beyond the end of the string, out_of_range - * is thrown. - */ - basic_string - substr(size_type __pos = 0, size_type __n = npos) const - { return basic_string(*this, - _M_check(__pos, "basic_string::substr"), __n); } - - /** - * @brief Compare to a string. - * @param str String to compare against. - * @return Integer < 0, 0, or > 0. - * - * Returns an integer < 0 if this string is ordered before @a str, 0 if - * their values are equivalent, or > 0 if this string is ordered after - * @a str. Determines the effective length rlen of the strings to - * compare as the smallest of size() and str.size(). The function - * then compares the two strings by calling traits::compare(data(), - * str.data(),rlen). If the result of the comparison is nonzero returns - * it, otherwise the shorter one is ordered first. - */ - int - compare(const basic_string& __str) const - { - const size_type __size = this->size(); - const size_type __osize = __str.size(); - const size_type __len = std::min(__size, __osize); - - int __r = traits_type::compare(_M_data(), __str.data(), __len); - if (!__r) - __r = _S_compare(__size, __osize); - return __r; - } - - /** - * @brief Compare substring to a string. - * @param pos Index of first character of substring. - * @param n Number of characters in substring. - * @param str String to compare against. - * @return Integer < 0, 0, or > 0. - * - * Form the substring of this string from the @a n characters starting - * at @a pos. Returns an integer < 0 if the substring is ordered - * before @a str, 0 if their values are equivalent, or > 0 if the - * substring is ordered after @a str. Determines the effective length - * rlen of the strings to compare as the smallest of the length of the - * substring and @a str.size(). The function then compares the two - * strings by calling traits::compare(substring.data(),str.data(),rlen). - * If the result of the comparison is nonzero returns it, otherwise the - * shorter one is ordered first. - */ - int - compare(size_type __pos, size_type __n, const basic_string& __str) const; - - /** - * @brief Compare substring to a substring. - * @param pos1 Index of first character of substring. - * @param n1 Number of characters in substring. - * @param str String to compare against. - * @param pos2 Index of first character of substring of str. - * @param n2 Number of characters in substring of str. - * @return Integer < 0, 0, or > 0. - * - * Form the substring of this string from the @a n1 characters starting - * at @a pos1. Form the substring of @a str from the @a n2 characters - * starting at @a pos2. Returns an integer < 0 if this substring is - * ordered before the substring of @a str, 0 if their values are - * equivalent, or > 0 if this substring is ordered after the substring - * of @a str. Determines the effective length rlen of the strings - * to compare as the smallest of the lengths of the substrings. The - * function then compares the two strings by calling - * traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). - * If the result of the comparison is nonzero returns it, otherwise the - * shorter one is ordered first. - */ - int - compare(size_type __pos1, size_type __n1, const basic_string& __str, - size_type __pos2, size_type __n2) const; - - /** - * @brief Compare to a C string. - * @param s C string to compare against. - * @return Integer < 0, 0, or > 0. - * - * Returns an integer < 0 if this string is ordered before @a s, 0 if - * their values are equivalent, or > 0 if this string is ordered after - * @a s. Determines the effective length rlen of the strings to - * compare as the smallest of size() and the length of a string - * constructed from @a s. The function then compares the two strings - * by calling traits::compare(data(),s,rlen). If the result of the - * comparison is nonzero returns it, otherwise the shorter one is - * ordered first. - */ - int - compare(const _CharT* __s) const; - - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 5 String::compare specification questionable - /** - * @brief Compare substring to a C string. - * @param pos Index of first character of substring. - * @param n1 Number of characters in substring. - * @param s C string to compare against. - * @return Integer < 0, 0, or > 0. - * - * Form the substring of this string from the @a n1 characters starting - * at @a pos. Returns an integer < 0 if the substring is ordered - * before @a s, 0 if their values are equivalent, or > 0 if the - * substring is ordered after @a s. Determines the effective length - * rlen of the strings to compare as the smallest of the length of the - * substring and the length of a string constructed from @a s. The - * function then compares the two string by calling - * traits::compare(substring.data(),s,rlen). If the result of the - * comparison is nonzero returns it, otherwise the shorter one is - * ordered first. - */ - int - compare(size_type __pos, size_type __n1, const _CharT* __s) const; - - /** - * @brief Compare substring against a character array. - * @param pos1 Index of first character of substring. - * @param n1 Number of characters in substring. - * @param s character array to compare against. - * @param n2 Number of characters of s. - * @return Integer < 0, 0, or > 0. - * - * Form the substring of this string from the @a n1 characters starting - * at @a pos1. Form a string from the first @a n2 characters of @a s. - * Returns an integer < 0 if this substring is ordered before the string - * from @a s, 0 if their values are equivalent, or > 0 if this substring - * is ordered after the string from @a s. Determines the effective - * length rlen of the strings to compare as the smallest of the length - * of the substring and @a n2. The function then compares the two - * strings by calling traits::compare(substring.data(),s,rlen). If the - * result of the comparison is nonzero returns it, otherwise the shorter - * one is ordered first. - * - * NB: s must have at least n2 characters, '\\0' has no special - * meaning. - */ - int - compare(size_type __pos, size_type __n1, const _CharT* __s, - size_type __n2) const; - }; - - template<typename _CharT, typename _Traits, typename _Alloc> - inline basic_string<_CharT, _Traits, _Alloc>:: - basic_string() -#ifndef _GLIBCXX_FULLY_DYNAMIC_STRING - : _M_dataplus(_S_empty_rep()._M_refdata(), _Alloc()) { } -#else - : _M_dataplus(_S_construct(size_type(), _CharT(), _Alloc()), _Alloc()) { } -#endif - - // operator+ - /** - * @brief Concatenate two strings. - * @param lhs First string. - * @param rhs Last string. - * @return New string with value of @a lhs followed by @a rhs. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - basic_string<_CharT, _Traits, _Alloc> - operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { - basic_string<_CharT, _Traits, _Alloc> __str(__lhs); - __str.append(__rhs); - return __str; - } - - /** - * @brief Concatenate C string and string. - * @param lhs First string. - * @param rhs Last string. - * @return New string with value of @a lhs followed by @a rhs. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - basic_string<_CharT,_Traits,_Alloc> - operator+(const _CharT* __lhs, - const basic_string<_CharT,_Traits,_Alloc>& __rhs); - - /** - * @brief Concatenate character and string. - * @param lhs First string. - * @param rhs Last string. - * @return New string with @a lhs followed by @a rhs. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - basic_string<_CharT,_Traits,_Alloc> - operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs); - - /** - * @brief Concatenate string and C string. - * @param lhs First string. - * @param rhs Last string. - * @return New string with @a lhs followed by @a rhs. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline basic_string<_CharT, _Traits, _Alloc> - operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { - basic_string<_CharT, _Traits, _Alloc> __str(__lhs); - __str.append(__rhs); - return __str; - } - - /** - * @brief Concatenate string and character. - * @param lhs First string. - * @param rhs Last string. - * @return New string with @a lhs followed by @a rhs. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline basic_string<_CharT, _Traits, _Alloc> - operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs) - { - typedef basic_string<_CharT, _Traits, _Alloc> __string_type; - typedef typename __string_type::size_type __size_type; - __string_type __str(__lhs); - __str.append(__size_type(1), __rhs); - return __str; - } - - // operator == - /** - * @brief Test equivalence of two strings. - * @param lhs First string. - * @param rhs Second string. - * @return True if @a lhs.compare(@a rhs) == 0. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __lhs.compare(__rhs) == 0; } - - template<typename _CharT> - inline - typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value, bool>::__type - operator==(const basic_string<_CharT>& __lhs, - const basic_string<_CharT>& __rhs) - { return (__lhs.size() == __rhs.size() - && !std::char_traits<_CharT>::compare(__lhs.data(), __rhs.data(), - __lhs.size())); } - - /** - * @brief Test equivalence of C string and string. - * @param lhs C string. - * @param rhs String. - * @return True if @a rhs.compare(@a lhs) == 0. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator==(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __rhs.compare(__lhs) == 0; } - - /** - * @brief Test equivalence of string and C string. - * @param lhs String. - * @param rhs C string. - * @return True if @a lhs.compare(@a rhs) == 0. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { return __lhs.compare(__rhs) == 0; } - - // operator != - /** - * @brief Test difference of two strings. - * @param lhs First string. - * @param rhs Second string. - * @return True if @a lhs.compare(@a rhs) != 0. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return !(__lhs == __rhs); } - - /** - * @brief Test difference of C string and string. - * @param lhs C string. - * @param rhs String. - * @return True if @a rhs.compare(@a lhs) != 0. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator!=(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return !(__lhs == __rhs); } - - /** - * @brief Test difference of string and C string. - * @param lhs String. - * @param rhs C string. - * @return True if @a lhs.compare(@a rhs) != 0. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator!=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { return !(__lhs == __rhs); } - - // operator < - /** - * @brief Test if string precedes string. - * @param lhs First string. - * @param rhs Second string. - * @return True if @a lhs precedes @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __lhs.compare(__rhs) < 0; } - - /** - * @brief Test if string precedes C string. - * @param lhs String. - * @param rhs C string. - * @return True if @a lhs precedes @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { return __lhs.compare(__rhs) < 0; } - - /** - * @brief Test if C string precedes string. - * @param lhs C string. - * @param rhs String. - * @return True if @a lhs precedes @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator<(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __rhs.compare(__lhs) > 0; } - - // operator > - /** - * @brief Test if string follows string. - * @param lhs First string. - * @param rhs Second string. - * @return True if @a lhs follows @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __lhs.compare(__rhs) > 0; } - - /** - * @brief Test if string follows C string. - * @param lhs String. - * @param rhs C string. - * @return True if @a lhs follows @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { return __lhs.compare(__rhs) > 0; } - - /** - * @brief Test if C string follows string. - * @param lhs C string. - * @param rhs String. - * @return True if @a lhs follows @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator>(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __rhs.compare(__lhs) < 0; } - - // operator <= - /** - * @brief Test if string doesn't follow string. - * @param lhs First string. - * @param rhs Second string. - * @return True if @a lhs doesn't follow @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __lhs.compare(__rhs) <= 0; } - - /** - * @brief Test if string doesn't follow C string. - * @param lhs String. - * @param rhs C string. - * @return True if @a lhs doesn't follow @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator<=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { return __lhs.compare(__rhs) <= 0; } - - /** - * @brief Test if C string doesn't follow string. - * @param lhs C string. - * @param rhs String. - * @return True if @a lhs doesn't follow @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator<=(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __rhs.compare(__lhs) >= 0; } - - // operator >= - /** - * @brief Test if string doesn't precede string. - * @param lhs First string. - * @param rhs Second string. - * @return True if @a lhs doesn't precede @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __lhs.compare(__rhs) >= 0; } - - /** - * @brief Test if string doesn't precede C string. - * @param lhs String. - * @param rhs C string. - * @return True if @a lhs doesn't precede @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator>=(const basic_string<_CharT, _Traits, _Alloc>& __lhs, - const _CharT* __rhs) - { return __lhs.compare(__rhs) >= 0; } - - /** - * @brief Test if C string doesn't precede string. - * @param lhs C string. - * @param rhs String. - * @return True if @a lhs doesn't precede @a rhs. False otherwise. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline bool - operator>=(const _CharT* __lhs, - const basic_string<_CharT, _Traits, _Alloc>& __rhs) - { return __rhs.compare(__lhs) <= 0; } - - /** - * @brief Swap contents of two strings. - * @param lhs First string. - * @param rhs Second string. - * - * Exchanges the contents of @a lhs and @a rhs in constant time. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline void - swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, - basic_string<_CharT, _Traits, _Alloc>& __rhs) - { __lhs.swap(__rhs); } - - /** - * @brief Read stream into a string. - * @param is Input stream. - * @param str Buffer to store into. - * @return Reference to the input stream. - * - * Stores characters from @a is into @a str until whitespace is found, the - * end of the stream is encountered, or str.max_size() is reached. If - * is.width() is non-zero, that is the limit on the number of characters - * stored into @a str. Any previous contents of @a str are erased. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - basic_istream<_CharT, _Traits>& - operator>>(basic_istream<_CharT, _Traits>& __is, - basic_string<_CharT, _Traits, _Alloc>& __str); - - template<> - basic_istream<char>& - operator>>(basic_istream<char>& __is, basic_string<char>& __str); - - /** - * @brief Write string to a stream. - * @param os Output stream. - * @param str String to write out. - * @return Reference to the output stream. - * - * Output characters of @a str into os following the same rules as for - * writing a C string. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline basic_ostream<_CharT, _Traits>& - operator<<(basic_ostream<_CharT, _Traits>& __os, - const basic_string<_CharT, _Traits, _Alloc>& __str) - { - // _GLIBCXX_RESOLVE_LIB_DEFECTS - // 586. string inserter not a formatted function - return __ostream_insert(__os, __str.data(), __str.size()); - } - - /** - * @brief Read a line from stream into a string. - * @param is Input stream. - * @param str Buffer to store into. - * @param delim Character marking end of line. - * @return Reference to the input stream. - * - * Stores characters from @a is into @a str until @a delim is found, the - * end of the stream is encountered, or str.max_size() is reached. If - * is.width() is non-zero, that is the limit on the number of characters - * stored into @a str. Any previous contents of @a str are erased. If @a - * delim was encountered, it is extracted but not stored into @a str. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - basic_istream<_CharT, _Traits>& - getline(basic_istream<_CharT, _Traits>& __is, - basic_string<_CharT, _Traits, _Alloc>& __str, _CharT __delim); - - /** - * @brief Read a line from stream into a string. - * @param is Input stream. - * @param str Buffer to store into. - * @return Reference to the input stream. - * - * Stores characters from is into @a str until '\n' is found, the end of - * the stream is encountered, or str.max_size() is reached. If is.width() - * is non-zero, that is the limit on the number of characters stored into - * @a str. Any previous contents of @a str are erased. If end of line was - * encountered, it is extracted but not stored into @a str. - */ - template<typename _CharT, typename _Traits, typename _Alloc> - inline basic_istream<_CharT, _Traits>& - getline(basic_istream<_CharT, _Traits>& __is, - basic_string<_CharT, _Traits, _Alloc>& __str) - { return getline(__is, __str, __is.widen('\n')); } - - template<> - basic_istream<char>& - getline(basic_istream<char>& __in, basic_string<char>& __str, - char __delim); - -#ifdef _GLIBCXX_USE_WCHAR_T - template<> - basic_istream<wchar_t>& - getline(basic_istream<wchar_t>& __in, basic_string<wchar_t>& __str, - wchar_t __delim); -#endif - -_GLIBCXX_END_NAMESPACE - -#if (defined(__GXX_EXPERIMENTAL_CXX0X__) && defined(_GLIBCXX_USE_C99) \ - && !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF)) - -#include <ext/string_conversions.h> - -_GLIBCXX_BEGIN_NAMESPACE(std) - - // 21.4 Numeric Conversions [string.conversions]. - inline int - stoi(const string& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa<long, int>(&std::strtol, "stoi", __str.c_str(), - __idx, __base); } - - inline long - stol(const string& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::strtol, "stol", __str.c_str(), - __idx, __base); } - - inline unsigned long - stoul(const string& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::strtoul, "stoul", __str.c_str(), - __idx, __base); } - - inline long long - stoll(const string& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::strtoll, "stoll", __str.c_str(), - __idx, __base); } - - inline unsigned long long - stoull(const string& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::strtoull, "stoull", __str.c_str(), - __idx, __base); } - - // NB: strtof vs strtod. - inline float - stof(const string& __str, size_t* __idx = 0) - { return __gnu_cxx::__stoa(&std::strtof, "stof", __str.c_str(), __idx); } - - inline double - stod(const string& __str, size_t* __idx = 0) - { return __gnu_cxx::__stoa(&std::strtod, "stod", __str.c_str(), __idx); } - - inline long double - stold(const string& __str, size_t* __idx = 0) - { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); } - - // NB: (v)snprintf vs sprintf. - inline string - to_string(long long __val) - { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, - 4 * sizeof(long long), - "%lld", __val); } - - inline string - to_string(unsigned long long __val) - { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, - 4 * sizeof(unsigned long long), - "%llu", __val); } - - inline string - to_string(long double __val) - { - const int __n = - __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; - return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n, - "%Lf", __val); - } - -#ifdef _GLIBCXX_USE_WCHAR_T - inline int - stoi(const wstring& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa<long, int>(&std::wcstol, "stoi", __str.c_str(), - __idx, __base); } - - inline long - stol(const wstring& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::wcstol, "stol", __str.c_str(), - __idx, __base); } - - inline unsigned long - stoul(const wstring& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::wcstoul, "stoul", __str.c_str(), - __idx, __base); } - - inline long long - stoll(const wstring& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::wcstoll, "stoll", __str.c_str(), - __idx, __base); } - - inline unsigned long long - stoull(const wstring& __str, size_t* __idx = 0, int __base = 10) - { return __gnu_cxx::__stoa(&std::wcstoull, "stoull", __str.c_str(), - __idx, __base); } - - // NB: wcstof vs wcstod. - inline float - stof(const wstring& __str, size_t* __idx = 0) - { return __gnu_cxx::__stoa(&std::wcstof, "stof", __str.c_str(), __idx); } - - inline double - stod(const wstring& __str, size_t* __idx = 0) - { return __gnu_cxx::__stoa(&std::wcstod, "stod", __str.c_str(), __idx); } - - inline long double - stold(const wstring& __str, size_t* __idx = 0) - { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); } - - inline wstring - to_wstring(long long __val) - { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, - 4 * sizeof(long long), - L"%lld", __val); } - - inline wstring - to_wstring(unsigned long long __val) - { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, - 4 * sizeof(unsigned long long), - L"%llu", __val); } - - inline wstring - to_wstring(long double __val) - { - const int __n = - __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 20; - return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n, - L"%Lf", __val); - } -#endif - -_GLIBCXX_END_NAMESPACE - -#endif - -#endif /* _BASIC_STRING_H */ |