diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.h')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.h | 2602 |
1 files changed, 2602 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.h b/gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.h new file mode 100644 index 000000000..beed6f1c2 --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.h @@ -0,0 +1,2602 @@ +// Locale support -*- 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 locale_facets.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +// +// ISO C++ 14882: 22.1 Locales +// + +#ifndef _LOCALE_FACETS_H +#define _LOCALE_FACETS_H 1 + +#pragma GCC system_header + +#include <cwctype> // For wctype_t +#include <cctype> +#include <bits/ctype_base.h> +#include <iosfwd> +#include <bits/ios_base.h> // For ios_base, ios_base::iostate +#include <streambuf> +#include <bits/cpp_type_traits.h> +#include <ext/type_traits.h> +#include <ext/numeric_traits.h> +#include <bits/streambuf_iterator.h> + +_GLIBCXX_BEGIN_NAMESPACE(std) + + // NB: Don't instantiate required wchar_t facets if no wchar_t support. +#ifdef _GLIBCXX_USE_WCHAR_T +# define _GLIBCXX_NUM_FACETS 28 +#else +# define _GLIBCXX_NUM_FACETS 14 +#endif + + // Convert string to numeric value of type _Tv and store results. + // NB: This is specialized for all required types, there is no + // generic definition. + template<typename _Tv> + void + __convert_to_v(const char* __in, _Tv& __out, ios_base::iostate& __err, + const __c_locale& __cloc); + + // Explicit specializations for required types. + template<> + void + __convert_to_v(const char*, float&, ios_base::iostate&, + const __c_locale&); + + template<> + void + __convert_to_v(const char*, double&, ios_base::iostate&, + const __c_locale&); + + template<> + void + __convert_to_v(const char*, long double&, ios_base::iostate&, + const __c_locale&); + + // NB: __pad is a struct, rather than a function, so it can be + // partially-specialized. + template<typename _CharT, typename _Traits> + struct __pad + { + static void + _S_pad(ios_base& __io, _CharT __fill, _CharT* __news, + const _CharT* __olds, streamsize __newlen, streamsize __oldlen); + }; + + // Used by both numeric and monetary facets. + // Inserts "group separator" characters into an array of characters. + // It's recursive, one iteration per group. It moves the characters + // in the buffer this way: "xxxx12345" -> "12,345xxx". Call this + // only with __gsize != 0. + template<typename _CharT> + _CharT* + __add_grouping(_CharT* __s, _CharT __sep, + const char* __gbeg, size_t __gsize, + const _CharT* __first, const _CharT* __last); + + // This template permits specializing facet output code for + // ostreambuf_iterator. For ostreambuf_iterator, sputn is + // significantly more efficient than incrementing iterators. + template<typename _CharT> + inline + ostreambuf_iterator<_CharT> + __write(ostreambuf_iterator<_CharT> __s, const _CharT* __ws, int __len) + { + __s._M_put(__ws, __len); + return __s; + } + + // This is the unspecialized form of the template. + template<typename _CharT, typename _OutIter> + inline + _OutIter + __write(_OutIter __s, const _CharT* __ws, int __len) + { + for (int __j = 0; __j < __len; __j++, ++__s) + *__s = __ws[__j]; + return __s; + } + + + // 22.2.1.1 Template class ctype + // Include host and configuration specific ctype enums for ctype_base. + + // Common base for ctype<_CharT>. + /** + * @brief Common base for ctype facet + * + * This template class provides implementations of the public functions + * that forward to the protected virtual functions. + * + * This template also provides abstract stubs for the protected virtual + * functions. + */ + template<typename _CharT> + class __ctype_abstract_base : public locale::facet, public ctype_base + { + public: + // Types: + /// Typedef for the template parameter + typedef _CharT char_type; + + /** + * @brief Test char_type classification. + * + * This function finds a mask M for @a c and compares it to mask @a m. + * It does so by returning the value of ctype<char_type>::do_is(). + * + * @param c The char_type to compare the mask of. + * @param m The mask to compare against. + * @return (M & m) != 0. + */ + bool + is(mask __m, char_type __c) const + { return this->do_is(__m, __c); } + + /** + * @brief Return a mask array. + * + * This function finds the mask for each char_type in the range [lo,hi) + * and successively writes it to vec. vec must have as many elements + * as the char array. It does so by returning the value of + * ctype<char_type>::do_is(). + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param vec Pointer to an array of mask storage. + * @return @a hi. + */ + const char_type* + is(const char_type *__lo, const char_type *__hi, mask *__vec) const + { return this->do_is(__lo, __hi, __vec); } + + /** + * @brief Find char_type matching a mask + * + * This function searches for and returns the first char_type c in + * [lo,hi) for which is(m,c) is true. It does so by returning + * ctype<char_type>::do_scan_is(). + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to matching char_type if found, else @a hi. + */ + const char_type* + scan_is(mask __m, const char_type* __lo, const char_type* __hi) const + { return this->do_scan_is(__m, __lo, __hi); } + + /** + * @brief Find char_type not matching a mask + * + * This function searches for and returns the first char_type c in + * [lo,hi) for which is(m,c) is false. It does so by returning + * ctype<char_type>::do_scan_not(). + * + * @param m The mask to compare against. + * @param lo Pointer to first char in range. + * @param hi Pointer to end of range. + * @return Pointer to non-matching char if found, else @a hi. + */ + const char_type* + scan_not(mask __m, const char_type* __lo, const char_type* __hi) const + { return this->do_scan_not(__m, __lo, __hi); } + + /** + * @brief Convert to uppercase. + * + * This function converts the argument to uppercase if possible. + * If not possible (for example, '2'), returns the argument. It does + * so by returning ctype<char_type>::do_toupper(). + * + * @param c The char_type to convert. + * @return The uppercase char_type if convertible, else @a c. + */ + char_type + toupper(char_type __c) const + { return this->do_toupper(__c); } + + /** + * @brief Convert array to uppercase. + * + * This function converts each char_type in the range [lo,hi) to + * uppercase if possible. Other elements remain untouched. It does so + * by returning ctype<char_type>:: do_toupper(lo, hi). + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + const char_type* + toupper(char_type *__lo, const char_type* __hi) const + { return this->do_toupper(__lo, __hi); } + + /** + * @brief Convert to lowercase. + * + * This function converts the argument to lowercase if possible. If + * not possible (for example, '2'), returns the argument. It does so + * by returning ctype<char_type>::do_tolower(c). + * + * @param c The char_type to convert. + * @return The lowercase char_type if convertible, else @a c. + */ + char_type + tolower(char_type __c) const + { return this->do_tolower(__c); } + + /** + * @brief Convert array to lowercase. + * + * This function converts each char_type in the range [lo,hi) to + * lowercase if possible. Other elements remain untouched. It does so + * by returning ctype<char_type>:: do_tolower(lo, hi). + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + const char_type* + tolower(char_type* __lo, const char_type* __hi) const + { return this->do_tolower(__lo, __hi); } + + /** + * @brief Widen char to char_type + * + * This function converts the char argument to char_type using the + * simplest reasonable transformation. It does so by returning + * ctype<char_type>::do_widen(c). + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @return The converted char_type. + */ + char_type + widen(char __c) const + { return this->do_widen(__c); } + + /** + * @brief Widen array to char_type + * + * This function converts each char in the input to char_type using the + * simplest reasonable transformation. It does so by returning + * ctype<char_type>::do_widen(c). + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param to Pointer to the destination array. + * @return @a hi. + */ + const char* + widen(const char* __lo, const char* __hi, char_type* __to) const + { return this->do_widen(__lo, __hi, __to); } + + /** + * @brief Narrow char_type to char + * + * This function converts the char_type to char using the simplest + * reasonable transformation. If the conversion fails, dfault is + * returned instead. It does so by returning + * ctype<char_type>::do_narrow(c). + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char_type to convert. + * @param dfault Char to return if conversion fails. + * @return The converted char. + */ + char + narrow(char_type __c, char __dfault) const + { return this->do_narrow(__c, __dfault); } + + /** + * @brief Narrow array to char array + * + * This function converts each char_type in the input to char using the + * simplest reasonable transformation and writes the results to the + * destination array. For any char_type in the input that cannot be + * converted, @a dfault is used instead. It does so by returning + * ctype<char_type>::do_narrow(lo, hi, dfault, to). + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param dfault Char to use if conversion fails. + * @param to Pointer to the destination array. + * @return @a hi. + */ + const char_type* + narrow(const char_type* __lo, const char_type* __hi, + char __dfault, char *__to) const + { return this->do_narrow(__lo, __hi, __dfault, __to); } + + protected: + explicit + __ctype_abstract_base(size_t __refs = 0): facet(__refs) { } + + virtual + ~__ctype_abstract_base() { } + + /** + * @brief Test char_type classification. + * + * This function finds a mask M for @a c and compares it to mask @a m. + * + * do_is() is a hook for a derived facet to change the behavior of + * classifying. do_is() must always return the same result for the + * same input. + * + * @param c The char_type to find the mask of. + * @param m The mask to compare against. + * @return (M & m) != 0. + */ + virtual bool + do_is(mask __m, char_type __c) const = 0; + + /** + * @brief Return a mask array. + * + * This function finds the mask for each char_type in the range [lo,hi) + * and successively writes it to vec. vec must have as many elements + * as the input. + * + * do_is() is a hook for a derived facet to change the behavior of + * classifying. do_is() must always return the same result for the + * same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param vec Pointer to an array of mask storage. + * @return @a hi. + */ + virtual const char_type* + do_is(const char_type* __lo, const char_type* __hi, + mask* __vec) const = 0; + + /** + * @brief Find char_type matching mask + * + * This function searches for and returns the first char_type c in + * [lo,hi) for which is(m,c) is true. + * + * do_scan_is() is a hook for a derived facet to change the behavior of + * match searching. do_is() must always return the same result for the + * same input. + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to a matching char_type if found, else @a hi. + */ + virtual const char_type* + do_scan_is(mask __m, const char_type* __lo, + const char_type* __hi) const = 0; + + /** + * @brief Find char_type not matching mask + * + * This function searches for and returns a pointer to the first + * char_type c of [lo,hi) for which is(m,c) is false. + * + * do_scan_is() is a hook for a derived facet to change the behavior of + * match searching. do_is() must always return the same result for the + * same input. + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to a non-matching char_type if found, else @a hi. + */ + virtual const char_type* + do_scan_not(mask __m, const char_type* __lo, + const char_type* __hi) const = 0; + + /** + * @brief Convert to uppercase. + * + * This virtual function converts the char_type argument to uppercase + * if possible. If not possible (for example, '2'), returns the + * argument. + * + * do_toupper() is a hook for a derived facet to change the behavior of + * uppercasing. do_toupper() must always return the same result for + * the same input. + * + * @param c The char_type to convert. + * @return The uppercase char_type if convertible, else @a c. + */ + virtual char_type + do_toupper(char_type) const = 0; + + /** + * @brief Convert array to uppercase. + * + * This virtual function converts each char_type in the range [lo,hi) + * to uppercase if possible. Other elements remain untouched. + * + * do_toupper() is a hook for a derived facet to change the behavior of + * uppercasing. do_toupper() must always return the same result for + * the same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + virtual const char_type* + do_toupper(char_type* __lo, const char_type* __hi) const = 0; + + /** + * @brief Convert to lowercase. + * + * This virtual function converts the argument to lowercase if + * possible. If not possible (for example, '2'), returns the argument. + * + * do_tolower() is a hook for a derived facet to change the behavior of + * lowercasing. do_tolower() must always return the same result for + * the same input. + * + * @param c The char_type to convert. + * @return The lowercase char_type if convertible, else @a c. + */ + virtual char_type + do_tolower(char_type) const = 0; + + /** + * @brief Convert array to lowercase. + * + * This virtual function converts each char_type in the range [lo,hi) + * to lowercase if possible. Other elements remain untouched. + * + * do_tolower() is a hook for a derived facet to change the behavior of + * lowercasing. do_tolower() must always return the same result for + * the same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + virtual const char_type* + do_tolower(char_type* __lo, const char_type* __hi) const = 0; + + /** + * @brief Widen char + * + * This virtual function converts the char to char_type using the + * simplest reasonable transformation. + * + * do_widen() is a hook for a derived facet to change the behavior of + * widening. do_widen() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @return The converted char_type + */ + virtual char_type + do_widen(char) const = 0; + + /** + * @brief Widen char array + * + * This function converts each char in the input to char_type using the + * simplest reasonable transformation. + * + * do_widen() is a hook for a derived facet to change the behavior of + * widening. do_widen() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start range. + * @param hi Pointer to end of range. + * @param to Pointer to the destination array. + * @return @a hi. + */ + virtual const char* + do_widen(const char* __lo, const char* __hi, + char_type* __dest) const = 0; + + /** + * @brief Narrow char_type to char + * + * This virtual function converts the argument to char using the + * simplest reasonable transformation. If the conversion fails, dfault + * is returned instead. + * + * do_narrow() is a hook for a derived facet to change the behavior of + * narrowing. do_narrow() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char_type to convert. + * @param dfault Char to return if conversion fails. + * @return The converted char. + */ + virtual char + do_narrow(char_type, char __dfault) const = 0; + + /** + * @brief Narrow char_type array to char + * + * This virtual function converts each char_type in the range [lo,hi) to + * char using the simplest reasonable transformation and writes the + * results to the destination array. For any element in the input that + * cannot be converted, @a dfault is used instead. + * + * do_narrow() is a hook for a derived facet to change the behavior of + * narrowing. do_narrow() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param dfault Char to use if conversion fails. + * @param to Pointer to the destination array. + * @return @a hi. + */ + virtual const char_type* + do_narrow(const char_type* __lo, const char_type* __hi, + char __dfault, char* __dest) const = 0; + }; + + // NB: Generic, mostly useless implementation. + /** + * @brief Template ctype facet + * + * This template class defines classification and conversion functions for + * character sets. It wraps <cctype> functionality. Ctype gets used by + * streams for many I/O operations. + * + * This template provides the protected virtual functions the developer + * will have to replace in a derived class or specialization to make a + * working facet. The public functions that access them are defined in + * __ctype_abstract_base, to allow for implementation flexibility. See + * ctype<wchar_t> for an example. The functions are documented in + * __ctype_abstract_base. + * + * Note: implementations are provided for all the protected virtual + * functions, but will likely not be useful. + */ + template<typename _CharT> + class ctype : public __ctype_abstract_base<_CharT> + { + public: + // Types: + typedef _CharT char_type; + typedef typename __ctype_abstract_base<_CharT>::mask mask; + + /// The facet id for ctype<char_type> + static locale::id id; + + explicit + ctype(size_t __refs = 0) : __ctype_abstract_base<_CharT>(__refs) { } + + protected: + virtual + ~ctype(); + + virtual bool + do_is(mask __m, char_type __c) const; + + virtual const char_type* + do_is(const char_type* __lo, const char_type* __hi, mask* __vec) const; + + virtual const char_type* + do_scan_is(mask __m, const char_type* __lo, const char_type* __hi) const; + + virtual const char_type* + do_scan_not(mask __m, const char_type* __lo, + const char_type* __hi) const; + + virtual char_type + do_toupper(char_type __c) const; + + virtual const char_type* + do_toupper(char_type* __lo, const char_type* __hi) const; + + virtual char_type + do_tolower(char_type __c) const; + + virtual const char_type* + do_tolower(char_type* __lo, const char_type* __hi) const; + + virtual char_type + do_widen(char __c) const; + + virtual const char* + do_widen(const char* __lo, const char* __hi, char_type* __dest) const; + + virtual char + do_narrow(char_type, char __dfault) const; + + virtual const char_type* + do_narrow(const char_type* __lo, const char_type* __hi, + char __dfault, char* __dest) const; + }; + + template<typename _CharT> + locale::id ctype<_CharT>::id; + + // 22.2.1.3 ctype<char> specialization. + /** + * @brief The ctype<char> specialization. + * + * This class defines classification and conversion functions for + * the char type. It gets used by char streams for many I/O + * operations. The char specialization provides a number of + * optimizations as well. + */ + template<> + class ctype<char> : public locale::facet, public ctype_base + { + public: + // Types: + /// Typedef for the template parameter char. + typedef char char_type; + + protected: + // Data Members: + __c_locale _M_c_locale_ctype; + bool _M_del; + __to_type _M_toupper; + __to_type _M_tolower; + const mask* _M_table; + mutable char _M_widen_ok; + mutable char _M_widen[1 + static_cast<unsigned char>(-1)]; + mutable char _M_narrow[1 + static_cast<unsigned char>(-1)]; + mutable char _M_narrow_ok; // 0 uninitialized, 1 init, + // 2 memcpy can't be used + + public: + /// The facet id for ctype<char> + static locale::id id; + /// The size of the mask table. It is SCHAR_MAX + 1. + static const size_t table_size = 1 + static_cast<unsigned char>(-1); + + /** + * @brief Constructor performs initialization. + * + * This is the constructor provided by the standard. + * + * @param table If non-zero, table is used as the per-char mask. + * Else classic_table() is used. + * @param del If true, passes ownership of table to this facet. + * @param refs Passed to the base facet class. + */ + explicit + ctype(const mask* __table = 0, bool __del = false, size_t __refs = 0); + + /** + * @brief Constructor performs static initialization. + * + * This constructor is used to construct the initial C locale facet. + * + * @param cloc Handle to C locale data. + * @param table If non-zero, table is used as the per-char mask. + * @param del If true, passes ownership of table to this facet. + * @param refs Passed to the base facet class. + */ + explicit + ctype(__c_locale __cloc, const mask* __table = 0, bool __del = false, + size_t __refs = 0); + + /** + * @brief Test char classification. + * + * This function compares the mask table[c] to @a m. + * + * @param c The char to compare the mask of. + * @param m The mask to compare against. + * @return True if m & table[c] is true, false otherwise. + */ + inline bool + is(mask __m, char __c) const; + + /** + * @brief Return a mask array. + * + * This function finds the mask for each char in the range [lo, hi) and + * successively writes it to vec. vec must have as many elements as + * the char array. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param vec Pointer to an array of mask storage. + * @return @a hi. + */ + inline const char* + is(const char* __lo, const char* __hi, mask* __vec) const; + + /** + * @brief Find char matching a mask + * + * This function searches for and returns the first char in [lo,hi) for + * which is(m,char) is true. + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to a matching char if found, else @a hi. + */ + inline const char* + scan_is(mask __m, const char* __lo, const char* __hi) const; + + /** + * @brief Find char not matching a mask + * + * This function searches for and returns a pointer to the first char + * in [lo,hi) for which is(m,char) is false. + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to a non-matching char if found, else @a hi. + */ + inline const char* + scan_not(mask __m, const char* __lo, const char* __hi) const; + + /** + * @brief Convert to uppercase. + * + * This function converts the char argument to uppercase if possible. + * If not possible (for example, '2'), returns the argument. + * + * toupper() acts as if it returns ctype<char>::do_toupper(c). + * do_toupper() must always return the same result for the same input. + * + * @param c The char to convert. + * @return The uppercase char if convertible, else @a c. + */ + char_type + toupper(char_type __c) const + { return this->do_toupper(__c); } + + /** + * @brief Convert array to uppercase. + * + * This function converts each char in the range [lo,hi) to uppercase + * if possible. Other chars remain untouched. + * + * toupper() acts as if it returns ctype<char>:: do_toupper(lo, hi). + * do_toupper() must always return the same result for the same input. + * + * @param lo Pointer to first char in range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + const char_type* + toupper(char_type *__lo, const char_type* __hi) const + { return this->do_toupper(__lo, __hi); } + + /** + * @brief Convert to lowercase. + * + * This function converts the char argument to lowercase if possible. + * If not possible (for example, '2'), returns the argument. + * + * tolower() acts as if it returns ctype<char>::do_tolower(c). + * do_tolower() must always return the same result for the same input. + * + * @param c The char to convert. + * @return The lowercase char if convertible, else @a c. + */ + char_type + tolower(char_type __c) const + { return this->do_tolower(__c); } + + /** + * @brief Convert array to lowercase. + * + * This function converts each char in the range [lo,hi) to lowercase + * if possible. Other chars remain untouched. + * + * tolower() acts as if it returns ctype<char>:: do_tolower(lo, hi). + * do_tolower() must always return the same result for the same input. + * + * @param lo Pointer to first char in range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + const char_type* + tolower(char_type* __lo, const char_type* __hi) const + { return this->do_tolower(__lo, __hi); } + + /** + * @brief Widen char + * + * This function converts the char to char_type using the simplest + * reasonable transformation. For an underived ctype<char> facet, the + * argument will be returned unchanged. + * + * This function works as if it returns ctype<char>::do_widen(c). + * do_widen() must always return the same result for the same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @return The converted character. + */ + char_type + widen(char __c) const + { + if (_M_widen_ok) + return _M_widen[static_cast<unsigned char>(__c)]; + this->_M_widen_init(); + return this->do_widen(__c); + } + + /** + * @brief Widen char array + * + * This function converts each char in the input to char using the + * simplest reasonable transformation. For an underived ctype<char> + * facet, the argument will be copied unchanged. + * + * This function works as if it returns ctype<char>::do_widen(c). + * do_widen() must always return the same result for the same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to first char in range. + * @param hi Pointer to end of range. + * @param to Pointer to the destination array. + * @return @a hi. + */ + const char* + widen(const char* __lo, const char* __hi, char_type* __to) const + { + if (_M_widen_ok == 1) + { + __builtin_memcpy(__to, __lo, __hi - __lo); + return __hi; + } + if (!_M_widen_ok) + _M_widen_init(); + return this->do_widen(__lo, __hi, __to); + } + + /** + * @brief Narrow char + * + * This function converts the char to char using the simplest + * reasonable transformation. If the conversion fails, dfault is + * returned instead. For an underived ctype<char> facet, @a c + * will be returned unchanged. + * + * This function works as if it returns ctype<char>::do_narrow(c). + * do_narrow() must always return the same result for the same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @param dfault Char to return if conversion fails. + * @return The converted character. + */ + char + narrow(char_type __c, char __dfault) const + { + if (_M_narrow[static_cast<unsigned char>(__c)]) + return _M_narrow[static_cast<unsigned char>(__c)]; + const char __t = do_narrow(__c, __dfault); + if (__t != __dfault) + _M_narrow[static_cast<unsigned char>(__c)] = __t; + return __t; + } + + /** + * @brief Narrow char array + * + * This function converts each char in the input to char using the + * simplest reasonable transformation and writes the results to the + * destination array. For any char in the input that cannot be + * converted, @a dfault is used instead. For an underived ctype<char> + * facet, the argument will be copied unchanged. + * + * This function works as if it returns ctype<char>::do_narrow(lo, hi, + * dfault, to). do_narrow() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param dfault Char to use if conversion fails. + * @param to Pointer to the destination array. + * @return @a hi. + */ + const char_type* + narrow(const char_type* __lo, const char_type* __hi, + char __dfault, char *__to) const + { + if (__builtin_expect(_M_narrow_ok == 1, true)) + { + __builtin_memcpy(__to, __lo, __hi - __lo); + return __hi; + } + if (!_M_narrow_ok) + _M_narrow_init(); + return this->do_narrow(__lo, __hi, __dfault, __to); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 695. ctype<char>::classic_table() not accessible. + /// Returns a pointer to the mask table provided to the constructor, or + /// the default from classic_table() if none was provided. + const mask* + table() const throw() + { return _M_table; } + + /// Returns a pointer to the C locale mask table. + static const mask* + classic_table() throw(); + protected: + + /** + * @brief Destructor. + * + * This function deletes table() if @a del was true in the + * constructor. + */ + virtual + ~ctype(); + + /** + * @brief Convert to uppercase. + * + * This virtual function converts the char argument to uppercase if + * possible. If not possible (for example, '2'), returns the argument. + * + * do_toupper() is a hook for a derived facet to change the behavior of + * uppercasing. do_toupper() must always return the same result for + * the same input. + * + * @param c The char to convert. + * @return The uppercase char if convertible, else @a c. + */ + virtual char_type + do_toupper(char_type) const; + + /** + * @brief Convert array to uppercase. + * + * This virtual function converts each char in the range [lo,hi) to + * uppercase if possible. Other chars remain untouched. + * + * do_toupper() is a hook for a derived facet to change the behavior of + * uppercasing. do_toupper() must always return the same result for + * the same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + virtual const char_type* + do_toupper(char_type* __lo, const char_type* __hi) const; + + /** + * @brief Convert to lowercase. + * + * This virtual function converts the char argument to lowercase if + * possible. If not possible (for example, '2'), returns the argument. + * + * do_tolower() is a hook for a derived facet to change the behavior of + * lowercasing. do_tolower() must always return the same result for + * the same input. + * + * @param c The char to convert. + * @return The lowercase char if convertible, else @a c. + */ + virtual char_type + do_tolower(char_type) const; + + /** + * @brief Convert array to lowercase. + * + * This virtual function converts each char in the range [lo,hi) to + * lowercase if possible. Other chars remain untouched. + * + * do_tolower() is a hook for a derived facet to change the behavior of + * lowercasing. do_tolower() must always return the same result for + * the same input. + * + * @param lo Pointer to first char in range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + virtual const char_type* + do_tolower(char_type* __lo, const char_type* __hi) const; + + /** + * @brief Widen char + * + * This virtual function converts the char to char using the simplest + * reasonable transformation. For an underived ctype<char> facet, the + * argument will be returned unchanged. + * + * do_widen() is a hook for a derived facet to change the behavior of + * widening. do_widen() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @return The converted character. + */ + virtual char_type + do_widen(char __c) const + { return __c; } + + /** + * @brief Widen char array + * + * This function converts each char in the range [lo,hi) to char using + * the simplest reasonable transformation. For an underived + * ctype<char> facet, the argument will be copied unchanged. + * + * do_widen() is a hook for a derived facet to change the behavior of + * widening. do_widen() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param to Pointer to the destination array. + * @return @a hi. + */ + virtual const char* + do_widen(const char* __lo, const char* __hi, char_type* __dest) const + { + __builtin_memcpy(__dest, __lo, __hi - __lo); + return __hi; + } + + /** + * @brief Narrow char + * + * This virtual function converts the char to char using the simplest + * reasonable transformation. If the conversion fails, dfault is + * returned instead. For an underived ctype<char> facet, @a c will be + * returned unchanged. + * + * do_narrow() is a hook for a derived facet to change the behavior of + * narrowing. do_narrow() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @param dfault Char to return if conversion fails. + * @return The converted char. + */ + virtual char + do_narrow(char_type __c, char) const + { return __c; } + + /** + * @brief Narrow char array to char array + * + * This virtual function converts each char in the range [lo,hi) to + * char using the simplest reasonable transformation and writes the + * results to the destination array. For any char in the input that + * cannot be converted, @a dfault is used instead. For an underived + * ctype<char> facet, the argument will be copied unchanged. + * + * do_narrow() is a hook for a derived facet to change the behavior of + * narrowing. do_narrow() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param dfault Char to use if conversion fails. + * @param to Pointer to the destination array. + * @return @a hi. + */ + virtual const char_type* + do_narrow(const char_type* __lo, const char_type* __hi, + char, char* __dest) const + { + __builtin_memcpy(__dest, __lo, __hi - __lo); + return __hi; + } + + private: + void _M_narrow_init() const; + void _M_widen_init() const; + }; + +#ifdef _GLIBCXX_USE_WCHAR_T + // 22.2.1.3 ctype<wchar_t> specialization + /** + * @brief The ctype<wchar_t> specialization. + * + * This class defines classification and conversion functions for the + * wchar_t type. It gets used by wchar_t streams for many I/O operations. + * The wchar_t specialization provides a number of optimizations as well. + * + * ctype<wchar_t> inherits its public methods from + * __ctype_abstract_base<wchar_t>. + */ + template<> + class ctype<wchar_t> : public __ctype_abstract_base<wchar_t> + { + public: + // Types: + /// Typedef for the template parameter wchar_t. + typedef wchar_t char_type; + typedef wctype_t __wmask_type; + + protected: + __c_locale _M_c_locale_ctype; + + // Pre-computed narrowed and widened chars. + bool _M_narrow_ok; + char _M_narrow[128]; + wint_t _M_widen[1 + static_cast<unsigned char>(-1)]; + + // Pre-computed elements for do_is. + mask _M_bit[16]; + __wmask_type _M_wmask[16]; + + public: + // Data Members: + /// The facet id for ctype<wchar_t> + static locale::id id; + + /** + * @brief Constructor performs initialization. + * + * This is the constructor provided by the standard. + * + * @param refs Passed to the base facet class. + */ + explicit + ctype(size_t __refs = 0); + + /** + * @brief Constructor performs static initialization. + * + * This constructor is used to construct the initial C locale facet. + * + * @param cloc Handle to C locale data. + * @param refs Passed to the base facet class. + */ + explicit + ctype(__c_locale __cloc, size_t __refs = 0); + + protected: + __wmask_type + _M_convert_to_wmask(const mask __m) const; + + /// Destructor + virtual + ~ctype(); + + /** + * @brief Test wchar_t classification. + * + * This function finds a mask M for @a c and compares it to mask @a m. + * + * do_is() is a hook for a derived facet to change the behavior of + * classifying. do_is() must always return the same result for the + * same input. + * + * @param c The wchar_t to find the mask of. + * @param m The mask to compare against. + * @return (M & m) != 0. + */ + virtual bool + do_is(mask __m, char_type __c) const; + + /** + * @brief Return a mask array. + * + * This function finds the mask for each wchar_t in the range [lo,hi) + * and successively writes it to vec. vec must have as many elements + * as the input. + * + * do_is() is a hook for a derived facet to change the behavior of + * classifying. do_is() must always return the same result for the + * same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param vec Pointer to an array of mask storage. + * @return @a hi. + */ + virtual const char_type* + do_is(const char_type* __lo, const char_type* __hi, mask* __vec) const; + + /** + * @brief Find wchar_t matching mask + * + * This function searches for and returns the first wchar_t c in + * [lo,hi) for which is(m,c) is true. + * + * do_scan_is() is a hook for a derived facet to change the behavior of + * match searching. do_is() must always return the same result for the + * same input. + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to a matching wchar_t if found, else @a hi. + */ + virtual const char_type* + do_scan_is(mask __m, const char_type* __lo, const char_type* __hi) const; + + /** + * @brief Find wchar_t not matching mask + * + * This function searches for and returns a pointer to the first + * wchar_t c of [lo,hi) for which is(m,c) is false. + * + * do_scan_is() is a hook for a derived facet to change the behavior of + * match searching. do_is() must always return the same result for the + * same input. + * + * @param m The mask to compare against. + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return Pointer to a non-matching wchar_t if found, else @a hi. + */ + virtual const char_type* + do_scan_not(mask __m, const char_type* __lo, + const char_type* __hi) const; + + /** + * @brief Convert to uppercase. + * + * This virtual function converts the wchar_t argument to uppercase if + * possible. If not possible (for example, '2'), returns the argument. + * + * do_toupper() is a hook for a derived facet to change the behavior of + * uppercasing. do_toupper() must always return the same result for + * the same input. + * + * @param c The wchar_t to convert. + * @return The uppercase wchar_t if convertible, else @a c. + */ + virtual char_type + do_toupper(char_type) const; + + /** + * @brief Convert array to uppercase. + * + * This virtual function converts each wchar_t in the range [lo,hi) to + * uppercase if possible. Other elements remain untouched. + * + * do_toupper() is a hook for a derived facet to change the behavior of + * uppercasing. do_toupper() must always return the same result for + * the same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + virtual const char_type* + do_toupper(char_type* __lo, const char_type* __hi) const; + + /** + * @brief Convert to lowercase. + * + * This virtual function converts the argument to lowercase if + * possible. If not possible (for example, '2'), returns the argument. + * + * do_tolower() is a hook for a derived facet to change the behavior of + * lowercasing. do_tolower() must always return the same result for + * the same input. + * + * @param c The wchar_t to convert. + * @return The lowercase wchar_t if convertible, else @a c. + */ + virtual char_type + do_tolower(char_type) const; + + /** + * @brief Convert array to lowercase. + * + * This virtual function converts each wchar_t in the range [lo,hi) to + * lowercase if possible. Other elements remain untouched. + * + * do_tolower() is a hook for a derived facet to change the behavior of + * lowercasing. do_tolower() must always return the same result for + * the same input. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @return @a hi. + */ + virtual const char_type* + do_tolower(char_type* __lo, const char_type* __hi) const; + + /** + * @brief Widen char to wchar_t + * + * This virtual function converts the char to wchar_t using the + * simplest reasonable transformation. For an underived ctype<wchar_t> + * facet, the argument will be cast to wchar_t. + * + * do_widen() is a hook for a derived facet to change the behavior of + * widening. do_widen() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The char to convert. + * @return The converted wchar_t. + */ + virtual char_type + do_widen(char) const; + + /** + * @brief Widen char array to wchar_t array + * + * This function converts each char in the input to wchar_t using the + * simplest reasonable transformation. For an underived ctype<wchar_t> + * facet, the argument will be copied, casting each element to wchar_t. + * + * do_widen() is a hook for a derived facet to change the behavior of + * widening. do_widen() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start range. + * @param hi Pointer to end of range. + * @param to Pointer to the destination array. + * @return @a hi. + */ + virtual const char* + do_widen(const char* __lo, const char* __hi, char_type* __dest) const; + + /** + * @brief Narrow wchar_t to char + * + * This virtual function converts the argument to char using + * the simplest reasonable transformation. If the conversion + * fails, dfault is returned instead. For an underived + * ctype<wchar_t> facet, @a c will be cast to char and + * returned. + * + * do_narrow() is a hook for a derived facet to change the + * behavior of narrowing. do_narrow() must always return the + * same result for the same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param c The wchar_t to convert. + * @param dfault Char to return if conversion fails. + * @return The converted char. + */ + virtual char + do_narrow(char_type, char __dfault) const; + + /** + * @brief Narrow wchar_t array to char array + * + * This virtual function converts each wchar_t in the range [lo,hi) to + * char using the simplest reasonable transformation and writes the + * results to the destination array. For any wchar_t in the input that + * cannot be converted, @a dfault is used instead. For an underived + * ctype<wchar_t> facet, the argument will be copied, casting each + * element to char. + * + * do_narrow() is a hook for a derived facet to change the behavior of + * narrowing. do_narrow() must always return the same result for the + * same input. + * + * Note: this is not what you want for codepage conversions. See + * codecvt for that. + * + * @param lo Pointer to start of range. + * @param hi Pointer to end of range. + * @param dfault Char to use if conversion fails. + * @param to Pointer to the destination array. + * @return @a hi. + */ + virtual const char_type* + do_narrow(const char_type* __lo, const char_type* __hi, + char __dfault, char* __dest) const; + + // For use at construction time only. + void + _M_initialize_ctype(); + }; +#endif //_GLIBCXX_USE_WCHAR_T + + /// class ctype_byname [22.2.1.2]. + template<typename _CharT> + class ctype_byname : public ctype<_CharT> + { + public: + typedef typename ctype<_CharT>::mask mask; + + explicit + ctype_byname(const char* __s, size_t __refs = 0); + + protected: + virtual + ~ctype_byname() { }; + }; + + /// 22.2.1.4 Class ctype_byname specializations. + template<> + class ctype_byname<char> : public ctype<char> + { + public: + explicit + ctype_byname(const char* __s, size_t __refs = 0); + + protected: + virtual + ~ctype_byname(); + }; + +#ifdef _GLIBCXX_USE_WCHAR_T + template<> + class ctype_byname<wchar_t> : public ctype<wchar_t> + { + public: + explicit + ctype_byname(const char* __s, size_t __refs = 0); + + protected: + virtual + ~ctype_byname(); + }; +#endif + +_GLIBCXX_END_NAMESPACE + +// Include host and configuration specific ctype inlines. +#include <bits/ctype_inline.h> + +_GLIBCXX_BEGIN_NAMESPACE(std) + + // 22.2.2 The numeric category. + class __num_base + { + public: + // NB: Code depends on the order of _S_atoms_out elements. + // Below are the indices into _S_atoms_out. + enum + { + _S_ominus, + _S_oplus, + _S_ox, + _S_oX, + _S_odigits, + _S_odigits_end = _S_odigits + 16, + _S_oudigits = _S_odigits_end, + _S_oudigits_end = _S_oudigits + 16, + _S_oe = _S_odigits + 14, // For scientific notation, 'e' + _S_oE = _S_oudigits + 14, // For scientific notation, 'E' + _S_oend = _S_oudigits_end + }; + + // A list of valid numeric literals for output. This array + // contains chars that will be passed through the current locale's + // ctype<_CharT>.widen() and then used to render numbers. + // For the standard "C" locale, this is + // "-+xX0123456789abcdef0123456789ABCDEF". + static const char* _S_atoms_out; + + // String literal of acceptable (narrow) input, for num_get. + // "-+xX0123456789abcdefABCDEF" + static const char* _S_atoms_in; + + enum + { + _S_iminus, + _S_iplus, + _S_ix, + _S_iX, + _S_izero, + _S_ie = _S_izero + 14, + _S_iE = _S_izero + 20, + _S_iend = 26 + }; + + // num_put + // Construct and return valid scanf format for floating point types. + static void + _S_format_float(const ios_base& __io, char* __fptr, char __mod); + }; + + template<typename _CharT> + struct __numpunct_cache : public locale::facet + { + const char* _M_grouping; + size_t _M_grouping_size; + bool _M_use_grouping; + const _CharT* _M_truename; + size_t _M_truename_size; + const _CharT* _M_falsename; + size_t _M_falsename_size; + _CharT _M_decimal_point; + _CharT _M_thousands_sep; + + // A list of valid numeric literals for output: in the standard + // "C" locale, this is "-+xX0123456789abcdef0123456789ABCDEF". + // This array contains the chars after having been passed + // through the current locale's ctype<_CharT>.widen(). + _CharT _M_atoms_out[__num_base::_S_oend]; + + // A list of valid numeric literals for input: in the standard + // "C" locale, this is "-+xX0123456789abcdefABCDEF" + // This array contains the chars after having been passed + // through the current locale's ctype<_CharT>.widen(). + _CharT _M_atoms_in[__num_base::_S_iend]; + + bool _M_allocated; + + __numpunct_cache(size_t __refs = 0) : facet(__refs), + _M_grouping(NULL), _M_grouping_size(0), _M_use_grouping(false), + _M_truename(NULL), _M_truename_size(0), _M_falsename(NULL), + _M_falsename_size(0), _M_decimal_point(_CharT()), + _M_thousands_sep(_CharT()), _M_allocated(false) + { } + + ~__numpunct_cache(); + + void + _M_cache(const locale& __loc); + + private: + __numpunct_cache& + operator=(const __numpunct_cache&); + + explicit + __numpunct_cache(const __numpunct_cache&); + }; + + template<typename _CharT> + __numpunct_cache<_CharT>::~__numpunct_cache() + { + if (_M_allocated) + { + delete [] _M_grouping; + delete [] _M_truename; + delete [] _M_falsename; + } + } + + /** + * @brief Numpunct facet. + * + * This facet stores several pieces of information related to printing and + * scanning numbers, such as the decimal point character. It takes a + * template parameter specifying the char type. The numpunct facet is + * used by streams for many I/O operations involving numbers. + * + * The numpunct template uses protected virtual functions to provide the + * actual results. The public accessors forward the call to the virtual + * functions. These virtual functions are hooks for developers to + * implement the behavior they require from a numpunct facet. + */ + template<typename _CharT> + class numpunct : public locale::facet + { + public: + // Types: + //@{ + /// Public typedefs + typedef _CharT char_type; + typedef basic_string<_CharT> string_type; + //@} + typedef __numpunct_cache<_CharT> __cache_type; + + protected: + __cache_type* _M_data; + + public: + /// Numpunct facet id. + static locale::id id; + + /** + * @brief Numpunct constructor. + * + * @param refs Refcount to pass to the base class. + */ + explicit + numpunct(size_t __refs = 0) : facet(__refs), _M_data(NULL) + { _M_initialize_numpunct(); } + + /** + * @brief Internal constructor. Not for general use. + * + * This is a constructor for use by the library itself to set up the + * predefined locale facets. + * + * @param cache __numpunct_cache object. + * @param refs Refcount to pass to the base class. + */ + explicit + numpunct(__cache_type* __cache, size_t __refs = 0) + : facet(__refs), _M_data(__cache) + { _M_initialize_numpunct(); } + + /** + * @brief Internal constructor. Not for general use. + * + * This is a constructor for use by the library itself to set up new + * locales. + * + * @param cloc The "C" locale. + * @param refs Refcount to pass to the base class. + */ + explicit + numpunct(__c_locale __cloc, size_t __refs = 0) + : facet(__refs), _M_data(NULL) + { _M_initialize_numpunct(__cloc); } + + /** + * @brief Return decimal point character. + * + * This function returns a char_type to use as a decimal point. It + * does so by returning returning + * numpunct<char_type>::do_decimal_point(). + * + * @return @a char_type representing a decimal point. + */ + char_type + decimal_point() const + { return this->do_decimal_point(); } + + /** + * @brief Return thousands separator character. + * + * This function returns a char_type to use as a thousands + * separator. It does so by returning returning + * numpunct<char_type>::do_thousands_sep(). + * + * @return char_type representing a thousands separator. + */ + char_type + thousands_sep() const + { return this->do_thousands_sep(); } + + /** + * @brief Return grouping specification. + * + * This function returns a string representing groupings for the + * integer part of a number. Groupings indicate where thousands + * separators should be inserted in the integer part of a number. + * + * Each char in the return string is interpret as an integer + * rather than a character. These numbers represent the number + * of digits in a group. The first char in the string + * represents the number of digits in the least significant + * group. If a char is negative, it indicates an unlimited + * number of digits for the group. If more chars from the + * string are required to group a number, the last char is used + * repeatedly. + * + * For example, if the grouping() returns "\003\002" and is + * applied to the number 123456789, this corresponds to + * 12,34,56,789. Note that if the string was "32", this would + * put more than 50 digits into the least significant group if + * the character set is ASCII. + * + * The string is returned by calling + * numpunct<char_type>::do_grouping(). + * + * @return string representing grouping specification. + */ + string + grouping() const + { return this->do_grouping(); } + + /** + * @brief Return string representation of bool true. + * + * This function returns a string_type containing the text + * representation for true bool variables. It does so by calling + * numpunct<char_type>::do_truename(). + * + * @return string_type representing printed form of true. + */ + string_type + truename() const + { return this->do_truename(); } + + /** + * @brief Return string representation of bool false. + * + * This function returns a string_type containing the text + * representation for false bool variables. It does so by calling + * numpunct<char_type>::do_falsename(). + * + * @return string_type representing printed form of false. + */ + string_type + falsename() const + { return this->do_falsename(); } + + protected: + /// Destructor. + virtual + ~numpunct(); + + /** + * @brief Return decimal point character. + * + * Returns a char_type to use as a decimal point. This function is a + * hook for derived classes to change the value returned. + * + * @return @a char_type representing a decimal point. + */ + virtual char_type + do_decimal_point() const + { return _M_data->_M_decimal_point; } + + /** + * @brief Return thousands separator character. + * + * Returns a char_type to use as a thousands separator. This function + * is a hook for derived classes to change the value returned. + * + * @return @a char_type representing a thousands separator. + */ + virtual char_type + do_thousands_sep() const + { return _M_data->_M_thousands_sep; } + + /** + * @brief Return grouping specification. + * + * Returns a string representing groupings for the integer part of a + * number. This function is a hook for derived classes to change the + * value returned. @see grouping() for details. + * + * @return String representing grouping specification. + */ + virtual string + do_grouping() const + { return _M_data->_M_grouping; } + + /** + * @brief Return string representation of bool true. + * + * Returns a string_type containing the text representation for true + * bool variables. This function is a hook for derived classes to + * change the value returned. + * + * @return string_type representing printed form of true. + */ + virtual string_type + do_truename() const + { return _M_data->_M_truename; } + + /** + * @brief Return string representation of bool false. + * + * Returns a string_type containing the text representation for false + * bool variables. This function is a hook for derived classes to + * change the value returned. + * + * @return string_type representing printed form of false. + */ + virtual string_type + do_falsename() const + { return _M_data->_M_falsename; } + + // For use at construction time only. + void + _M_initialize_numpunct(__c_locale __cloc = NULL); + }; + + template<typename _CharT> + locale::id numpunct<_CharT>::id; + + template<> + numpunct<char>::~numpunct(); + + template<> + void + numpunct<char>::_M_initialize_numpunct(__c_locale __cloc); + +#ifdef _GLIBCXX_USE_WCHAR_T + template<> + numpunct<wchar_t>::~numpunct(); + + template<> + void + numpunct<wchar_t>::_M_initialize_numpunct(__c_locale __cloc); +#endif + + /// class numpunct_byname [22.2.3.2]. + template<typename _CharT> + class numpunct_byname : public numpunct<_CharT> + { + public: + typedef _CharT char_type; + typedef basic_string<_CharT> string_type; + + explicit + numpunct_byname(const char* __s, size_t __refs = 0) + : numpunct<_CharT>(__refs) + { + if (__builtin_strcmp(__s, "C") != 0 + && __builtin_strcmp(__s, "POSIX") != 0) + { + __c_locale __tmp; + this->_S_create_c_locale(__tmp, __s); + this->_M_initialize_numpunct(__tmp); + this->_S_destroy_c_locale(__tmp); + } + } + + protected: + virtual + ~numpunct_byname() { } + }; + +_GLIBCXX_BEGIN_LDBL_NAMESPACE + + /** + * @brief Facet for parsing number strings. + * + * This facet encapsulates the code to parse and return a number + * from a string. It is used by the istream numeric extraction + * operators. + * + * The num_get template uses protected virtual functions to provide the + * actual results. The public accessors forward the call to the virtual + * functions. These virtual functions are hooks for developers to + * implement the behavior they require from the num_get facet. + */ + template<typename _CharT, typename _InIter> + class num_get : public locale::facet + { + public: + // Types: + //@{ + /// Public typedefs + typedef _CharT char_type; + typedef _InIter iter_type; + //@} + + /// Numpunct facet id. + static locale::id id; + + /** + * @brief Constructor performs initialization. + * + * This is the constructor provided by the standard. + * + * @param refs Passed to the base facet class. + */ + explicit + num_get(size_t __refs = 0) : facet(__refs) { } + + /** + * @brief Numeric parsing. + * + * Parses the input stream into the bool @a v. It does so by calling + * num_get::do_get(). + * + * If ios_base::boolalpha is set, attempts to read + * ctype<CharT>::truename() or ctype<CharT>::falsename(). Sets + * @a v to true or false if successful. Sets err to + * ios_base::failbit if reading the string fails. Sets err to + * ios_base::eofbit if the stream is emptied. + * + * If ios_base::boolalpha is not set, proceeds as with reading a long, + * except if the value is 1, sets @a v to true, if the value is 0, sets + * @a v to false, and otherwise set err to ios_base::failbit. + * + * @param in Start of input stream. + * @param end End of input stream. + * @param io Source of locale and flags. + * @param err Error flags to set. + * @param v Value to format and insert. + * @return Iterator after reading. + */ + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, bool& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + //@{ + /** + * @brief Numeric parsing. + * + * Parses the input stream into the integral variable @a v. It does so + * by calling num_get::do_get(). + * + * Parsing is affected by the flag settings in @a io. + * + * The basic parse is affected by the value of io.flags() & + * ios_base::basefield. If equal to ios_base::oct, parses like the + * scanf %o specifier. Else if equal to ios_base::hex, parses like %X + * specifier. Else if basefield equal to 0, parses like the %i + * specifier. Otherwise, parses like %d for signed and %u for unsigned + * types. The matching type length modifier is also used. + * + * Digit grouping is interpreted according to numpunct::grouping() and + * numpunct::thousands_sep(). If the pattern of digit groups isn't + * consistent, sets err to ios_base::failbit. + * + * If parsing the string yields a valid value for @a v, @a v is set. + * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered. + * Sets err to ios_base::eofbit if the stream is emptied. + * + * @param in Start of input stream. + * @param end End of input stream. + * @param io Source of locale and flags. + * @param err Error flags to set. + * @param v Value to format and insert. + * @return Iterator after reading. + */ + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, long& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned short& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned int& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned long& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + +#ifdef _GLIBCXX_USE_LONG_LONG + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, long long& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned long long& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } +#endif + //@} + + //@{ + /** + * @brief Numeric parsing. + * + * Parses the input stream into the integral variable @a v. It does so + * by calling num_get::do_get(). + * + * The input characters are parsed like the scanf %g specifier. The + * matching type length modifier is also used. + * + * The decimal point character used is numpunct::decimal_point(). + * Digit grouping is interpreted according to numpunct::grouping() and + * numpunct::thousands_sep(). If the pattern of digit groups isn't + * consistent, sets err to ios_base::failbit. + * + * If parsing the string yields a valid value for @a v, @a v is set. + * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered. + * Sets err to ios_base::eofbit if the stream is emptied. + * + * @param in Start of input stream. + * @param end End of input stream. + * @param io Source of locale and flags. + * @param err Error flags to set. + * @param v Value to format and insert. + * @return Iterator after reading. + */ + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, float& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, double& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, long double& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + //@} + + /** + * @brief Numeric parsing. + * + * Parses the input stream into the pointer variable @a v. It does so + * by calling num_get::do_get(). + * + * The input characters are parsed like the scanf %p specifier. + * + * Digit grouping is interpreted according to numpunct::grouping() and + * numpunct::thousands_sep(). If the pattern of digit groups isn't + * consistent, sets err to ios_base::failbit. + * + * Note that the digit grouping effect for pointers is a bit ambiguous + * in the standard and shouldn't be relied on. See DR 344. + * + * If parsing the string yields a valid value for @a v, @a v is set. + * Otherwise, sets err to ios_base::failbit and leaves @a v unaltered. + * Sets err to ios_base::eofbit if the stream is emptied. + * + * @param in Start of input stream. + * @param end End of input stream. + * @param io Source of locale and flags. + * @param err Error flags to set. + * @param v Value to format and insert. + * @return Iterator after reading. + */ + iter_type + get(iter_type __in, iter_type __end, ios_base& __io, + ios_base::iostate& __err, void*& __v) const + { return this->do_get(__in, __end, __io, __err, __v); } + + protected: + /// Destructor. + virtual ~num_get() { } + + iter_type + _M_extract_float(iter_type, iter_type, ios_base&, ios_base::iostate&, + string&) const; + + template<typename _ValueT> + iter_type + _M_extract_int(iter_type, iter_type, ios_base&, ios_base::iostate&, + _ValueT&) const; + + template<typename _CharT2> + typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value, int>::__type + _M_find(const _CharT2*, size_t __len, _CharT2 __c) const + { + int __ret = -1; + if (__len <= 10) + { + if (__c >= _CharT2('0') && __c < _CharT2(_CharT2('0') + __len)) + __ret = __c - _CharT2('0'); + } + else + { + if (__c >= _CharT2('0') && __c <= _CharT2('9')) + __ret = __c - _CharT2('0'); + else if (__c >= _CharT2('a') && __c <= _CharT2('f')) + __ret = 10 + (__c - _CharT2('a')); + else if (__c >= _CharT2('A') && __c <= _CharT2('F')) + __ret = 10 + (__c - _CharT2('A')); + } + return __ret; + } + + template<typename _CharT2> + typename __gnu_cxx::__enable_if<!__is_char<_CharT2>::__value, + int>::__type + _M_find(const _CharT2* __zero, size_t __len, _CharT2 __c) const + { + int __ret = -1; + const char_type* __q = char_traits<_CharT2>::find(__zero, __len, __c); + if (__q) + { + __ret = __q - __zero; + if (__ret > 15) + __ret -= 6; + } + return __ret; + } + + //@{ + /** + * @brief Numeric parsing. + * + * Parses the input stream into the variable @a v. This function is a + * hook for derived classes to change the value returned. @see get() + * for more details. + * + * @param in Start of input stream. + * @param end End of input stream. + * @param io Source of locale and flags. + * @param err Error flags to set. + * @param v Value to format and insert. + * @return Iterator after reading. + */ + virtual iter_type + do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, bool&) const; + + virtual iter_type + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, long& __v) const + { return _M_extract_int(__beg, __end, __io, __err, __v); } + + virtual iter_type + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned short& __v) const + { return _M_extract_int(__beg, __end, __io, __err, __v); } + + virtual iter_type + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned int& __v) const + { return _M_extract_int(__beg, __end, __io, __err, __v); } + + virtual iter_type + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned long& __v) const + { return _M_extract_int(__beg, __end, __io, __err, __v); } + +#ifdef _GLIBCXX_USE_LONG_LONG + virtual iter_type + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, long long& __v) const + { return _M_extract_int(__beg, __end, __io, __err, __v); } + + virtual iter_type + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, unsigned long long& __v) const + { return _M_extract_int(__beg, __end, __io, __err, __v); } +#endif + + virtual iter_type + do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, + float&) const; + + virtual iter_type + do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, + double&) const; + + // XXX GLIBCXX_ABI Deprecated +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ + virtual iter_type + __do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, + double&) const; +#else + virtual iter_type + do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, + long double&) const; +#endif + + virtual iter_type + do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, + void*&) const; + + // XXX GLIBCXX_ABI Deprecated +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ + virtual iter_type + do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err, + long double&) const; +#endif + //@} + }; + + template<typename _CharT, typename _InIter> + locale::id num_get<_CharT, _InIter>::id; + + + /** + * @brief Facet for converting numbers to strings. + * + * This facet encapsulates the code to convert a number to a string. It is + * used by the ostream numeric insertion operators. + * + * The num_put template uses protected virtual functions to provide the + * actual results. The public accessors forward the call to the virtual + * functions. These virtual functions are hooks for developers to + * implement the behavior they require from the num_put facet. + */ + template<typename _CharT, typename _OutIter> + class num_put : public locale::facet + { + public: + // Types: + //@{ + /// Public typedefs + typedef _CharT char_type; + typedef _OutIter iter_type; + //@} + + /// Numpunct facet id. + static locale::id id; + + /** + * @brief Constructor performs initialization. + * + * This is the constructor provided by the standard. + * + * @param refs Passed to the base facet class. + */ + explicit + num_put(size_t __refs = 0) : facet(__refs) { } + + /** + * @brief Numeric formatting. + * + * Formats the boolean @a v and inserts it into a stream. It does so + * by calling num_put::do_put(). + * + * If ios_base::boolalpha is set, writes ctype<CharT>::truename() or + * ctype<CharT>::falsename(). Otherwise formats @a v as an int. + * + * @param s Stream to write to. + * @param io Source of locale and flags. + * @param fill Char_type to use for filling. + * @param v Value to format and insert. + * @return Iterator after writing. + */ + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, bool __v) const + { return this->do_put(__s, __f, __fill, __v); } + + //@{ + /** + * @brief Numeric formatting. + * + * Formats the integral value @a v and inserts it into a + * stream. It does so by calling num_put::do_put(). + * + * Formatting is affected by the flag settings in @a io. + * + * The basic format is affected by the value of io.flags() & + * ios_base::basefield. If equal to ios_base::oct, formats like the + * printf %o specifier. Else if equal to ios_base::hex, formats like + * %x or %X with ios_base::uppercase unset or set respectively. + * Otherwise, formats like %d, %ld, %lld for signed and %u, %lu, %llu + * for unsigned values. Note that if both oct and hex are set, neither + * will take effect. + * + * If ios_base::showpos is set, '+' is output before positive values. + * If ios_base::showbase is set, '0' precedes octal values (except 0) + * and '0[xX]' precedes hex values. + * + * Thousands separators are inserted according to numpunct::grouping() + * and numpunct::thousands_sep(). The decimal point character used is + * numpunct::decimal_point(). + * + * If io.width() is non-zero, enough @a fill characters are inserted to + * make the result at least that wide. If + * (io.flags() & ios_base::adjustfield) == ios_base::left, result is + * padded at the end. If ios_base::internal, then padding occurs + * immediately after either a '+' or '-' or after '0x' or '0X'. + * Otherwise, padding occurs at the beginning. + * + * @param s Stream to write to. + * @param io Source of locale and flags. + * @param fill Char_type to use for filling. + * @param v Value to format and insert. + * @return Iterator after writing. + */ + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, long __v) const + { return this->do_put(__s, __f, __fill, __v); } + + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, + unsigned long __v) const + { return this->do_put(__s, __f, __fill, __v); } + +#ifdef _GLIBCXX_USE_LONG_LONG + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, long long __v) const + { return this->do_put(__s, __f, __fill, __v); } + + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, + unsigned long long __v) const + { return this->do_put(__s, __f, __fill, __v); } +#endif + //@} + + //@{ + /** + * @brief Numeric formatting. + * + * Formats the floating point value @a v and inserts it into a stream. + * It does so by calling num_put::do_put(). + * + * Formatting is affected by the flag settings in @a io. + * + * The basic format is affected by the value of io.flags() & + * ios_base::floatfield. If equal to ios_base::fixed, formats like the + * printf %f specifier. Else if equal to ios_base::scientific, formats + * like %e or %E with ios_base::uppercase unset or set respectively. + * Otherwise, formats like %g or %G depending on uppercase. Note that + * if both fixed and scientific are set, the effect will also be like + * %g or %G. + * + * The output precision is given by io.precision(). This precision is + * capped at numeric_limits::digits10 + 2 (different for double and + * long double). The default precision is 6. + * + * If ios_base::showpos is set, '+' is output before positive values. + * If ios_base::showpoint is set, a decimal point will always be + * output. + * + * Thousands separators are inserted according to numpunct::grouping() + * and numpunct::thousands_sep(). The decimal point character used is + * numpunct::decimal_point(). + * + * If io.width() is non-zero, enough @a fill characters are inserted to + * make the result at least that wide. If + * (io.flags() & ios_base::adjustfield) == ios_base::left, result is + * padded at the end. If ios_base::internal, then padding occurs + * immediately after either a '+' or '-' or after '0x' or '0X'. + * Otherwise, padding occurs at the beginning. + * + * @param s Stream to write to. + * @param io Source of locale and flags. + * @param fill Char_type to use for filling. + * @param v Value to format and insert. + * @return Iterator after writing. + */ + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, double __v) const + { return this->do_put(__s, __f, __fill, __v); } + + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, + long double __v) const + { return this->do_put(__s, __f, __fill, __v); } + //@} + + /** + * @brief Numeric formatting. + * + * Formats the pointer value @a v and inserts it into a stream. It + * does so by calling num_put::do_put(). + * + * This function formats @a v as an unsigned long with ios_base::hex + * and ios_base::showbase set. + * + * @param s Stream to write to. + * @param io Source of locale and flags. + * @param fill Char_type to use for filling. + * @param v Value to format and insert. + * @return Iterator after writing. + */ + iter_type + put(iter_type __s, ios_base& __f, char_type __fill, + const void* __v) const + { return this->do_put(__s, __f, __fill, __v); } + + protected: + template<typename _ValueT> + iter_type + _M_insert_float(iter_type, ios_base& __io, char_type __fill, + char __mod, _ValueT __v) const; + + void + _M_group_float(const char* __grouping, size_t __grouping_size, + char_type __sep, const char_type* __p, char_type* __new, + char_type* __cs, int& __len) const; + + template<typename _ValueT> + iter_type + _M_insert_int(iter_type, ios_base& __io, char_type __fill, + _ValueT __v) const; + + void + _M_group_int(const char* __grouping, size_t __grouping_size, + char_type __sep, ios_base& __io, char_type* __new, + char_type* __cs, int& __len) const; + + void + _M_pad(char_type __fill, streamsize __w, ios_base& __io, + char_type* __new, const char_type* __cs, int& __len) const; + + /// Destructor. + virtual + ~num_put() { }; + + //@{ + /** + * @brief Numeric formatting. + * + * These functions do the work of formatting numeric values and + * inserting them into a stream. This function is a hook for derived + * classes to change the value returned. + * + * @param s Stream to write to. + * @param io Source of locale and flags. + * @param fill Char_type to use for filling. + * @param v Value to format and insert. + * @return Iterator after writing. + */ + virtual iter_type + do_put(iter_type, ios_base&, char_type __fill, bool __v) const; + + virtual iter_type + do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const + { return _M_insert_int(__s, __io, __fill, __v); } + + virtual iter_type + do_put(iter_type __s, ios_base& __io, char_type __fill, + unsigned long __v) const + { return _M_insert_int(__s, __io, __fill, __v); } + +#ifdef _GLIBCXX_USE_LONG_LONG + virtual iter_type + do_put(iter_type __s, ios_base& __io, char_type __fill, + long long __v) const + { return _M_insert_int(__s, __io, __fill, __v); } + + virtual iter_type + do_put(iter_type __s, ios_base& __io, char_type __fill, + unsigned long long __v) const + { return _M_insert_int(__s, __io, __fill, __v); } +#endif + + virtual iter_type + do_put(iter_type, ios_base&, char_type __fill, double __v) const; + + // XXX GLIBCXX_ABI Deprecated +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ + virtual iter_type + __do_put(iter_type, ios_base&, char_type __fill, double __v) const; +#else + virtual iter_type + do_put(iter_type, ios_base&, char_type __fill, long double __v) const; +#endif + + virtual iter_type + do_put(iter_type, ios_base&, char_type __fill, const void* __v) const; + + // XXX GLIBCXX_ABI Deprecated +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ + virtual iter_type + do_put(iter_type, ios_base&, char_type __fill, long double __v) const; +#endif + //@} + }; + + template <typename _CharT, typename _OutIter> + locale::id num_put<_CharT, _OutIter>::id; + +_GLIBCXX_END_LDBL_NAMESPACE + + // Subclause convenience interfaces, inlines. + // NB: These are inline because, when used in a loop, some compilers + // can hoist the body out of the loop; then it's just as fast as the + // C is*() function. + + /// Convenience interface to ctype.is(ctype_base::space, __c). + template<typename _CharT> + inline bool + isspace(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::space, __c); } + + /// Convenience interface to ctype.is(ctype_base::print, __c). + template<typename _CharT> + inline bool + isprint(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::print, __c); } + + /// Convenience interface to ctype.is(ctype_base::cntrl, __c). + template<typename _CharT> + inline bool + iscntrl(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::cntrl, __c); } + + /// Convenience interface to ctype.is(ctype_base::upper, __c). + template<typename _CharT> + inline bool + isupper(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::upper, __c); } + + /// Convenience interface to ctype.is(ctype_base::lower, __c). + template<typename _CharT> + inline bool + islower(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::lower, __c); } + + /// Convenience interface to ctype.is(ctype_base::alpha, __c). + template<typename _CharT> + inline bool + isalpha(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alpha, __c); } + + /// Convenience interface to ctype.is(ctype_base::digit, __c). + template<typename _CharT> + inline bool + isdigit(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::digit, __c); } + + /// Convenience interface to ctype.is(ctype_base::punct, __c). + template<typename _CharT> + inline bool + ispunct(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::punct, __c); } + + /// Convenience interface to ctype.is(ctype_base::xdigit, __c). + template<typename _CharT> + inline bool + isxdigit(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::xdigit, __c); } + + /// Convenience interface to ctype.is(ctype_base::alnum, __c). + template<typename _CharT> + inline bool + isalnum(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::alnum, __c); } + + /// Convenience interface to ctype.is(ctype_base::graph, __c). + template<typename _CharT> + inline bool + isgraph(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).is(ctype_base::graph, __c); } + + /// Convenience interface to ctype.toupper(__c). + template<typename _CharT> + inline _CharT + toupper(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).toupper(__c); } + + /// Convenience interface to ctype.tolower(__c). + template<typename _CharT> + inline _CharT + tolower(_CharT __c, const locale& __loc) + { return use_facet<ctype<_CharT> >(__loc).tolower(__c); } + +_GLIBCXX_END_NAMESPACE + +#ifndef _GLIBCXX_EXPORT_TEMPLATE +# include <bits/locale_facets.tcc> +#endif + +#endif |