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Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.tcc')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.tcc | 1345 |
1 files changed, 1345 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.tcc b/gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.tcc new file mode 100644 index 000000000..ba8f3988f --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/include/bits/locale_facets.tcc @@ -0,0 +1,1345 @@ +// 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.tcc + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +#ifndef _LOCALE_FACETS_TCC +#define _LOCALE_FACETS_TCC 1 + +#pragma GCC system_header + +_GLIBCXX_BEGIN_NAMESPACE(std) + + // Routine to access a cache for the facet. If the cache didn't + // exist before, it gets constructed on the fly. + template<typename _Facet> + struct __use_cache + { + const _Facet* + operator() (const locale& __loc) const; + }; + + // Specializations. + template<typename _CharT> + struct __use_cache<__numpunct_cache<_CharT> > + { + const __numpunct_cache<_CharT>* + operator() (const locale& __loc) const + { + const size_t __i = numpunct<_CharT>::id._M_id(); + const locale::facet** __caches = __loc._M_impl->_M_caches; + if (!__caches[__i]) + { + __numpunct_cache<_CharT>* __tmp = NULL; + __try + { + __tmp = new __numpunct_cache<_CharT>; + __tmp->_M_cache(__loc); + } + __catch(...) + { + delete __tmp; + __throw_exception_again; + } + __loc._M_impl->_M_install_cache(__tmp, __i); + } + return static_cast<const __numpunct_cache<_CharT>*>(__caches[__i]); + } + }; + + template<typename _CharT> + void + __numpunct_cache<_CharT>::_M_cache(const locale& __loc) + { + _M_allocated = true; + + const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); + + _M_grouping_size = __np.grouping().size(); + char* __grouping = new char[_M_grouping_size]; + __np.grouping().copy(__grouping, _M_grouping_size); + _M_grouping = __grouping; + _M_use_grouping = (_M_grouping_size + && static_cast<signed char>(_M_grouping[0]) > 0 + && (_M_grouping[0] + != __gnu_cxx::__numeric_traits<char>::__max)); + + _M_truename_size = __np.truename().size(); + _CharT* __truename = new _CharT[_M_truename_size]; + __np.truename().copy(__truename, _M_truename_size); + _M_truename = __truename; + + _M_falsename_size = __np.falsename().size(); + _CharT* __falsename = new _CharT[_M_falsename_size]; + __np.falsename().copy(__falsename, _M_falsename_size); + _M_falsename = __falsename; + + _M_decimal_point = __np.decimal_point(); + _M_thousands_sep = __np.thousands_sep(); + + const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc); + __ct.widen(__num_base::_S_atoms_out, + __num_base::_S_atoms_out + __num_base::_S_oend, _M_atoms_out); + __ct.widen(__num_base::_S_atoms_in, + __num_base::_S_atoms_in + __num_base::_S_iend, _M_atoms_in); + } + + // Used by both numeric and monetary facets. + // Check to make sure that the __grouping_tmp string constructed in + // money_get or num_get matches the canonical grouping for a given + // locale. + // __grouping_tmp is parsed L to R + // 1,222,444 == __grouping_tmp of "\1\3\3" + // __grouping is parsed R to L + // 1,222,444 == __grouping of "\3" == "\3\3\3" + bool + __verify_grouping(const char* __grouping, size_t __grouping_size, + const string& __grouping_tmp); + +_GLIBCXX_BEGIN_LDBL_NAMESPACE + + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + _M_extract_float(_InIter __beg, _InIter __end, ios_base& __io, + ios_base::iostate& __err, string& __xtrc) const + { + typedef char_traits<_CharT> __traits_type; + typedef __numpunct_cache<_CharT> __cache_type; + __use_cache<__cache_type> __uc; + const locale& __loc = __io._M_getloc(); + const __cache_type* __lc = __uc(__loc); + const _CharT* __lit = __lc->_M_atoms_in; + char_type __c = char_type(); + + // True if __beg becomes equal to __end. + bool __testeof = __beg == __end; + + // First check for sign. + if (!__testeof) + { + __c = *__beg; + const bool __plus = __c == __lit[__num_base::_S_iplus]; + if ((__plus || __c == __lit[__num_base::_S_iminus]) + && !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep) + && !(__c == __lc->_M_decimal_point)) + { + __xtrc += __plus ? '+' : '-'; + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + } + + // Next, look for leading zeros. + bool __found_mantissa = false; + int __sep_pos = 0; + while (!__testeof) + { + if ((__lc->_M_use_grouping && __c == __lc->_M_thousands_sep) + || __c == __lc->_M_decimal_point) + break; + else if (__c == __lit[__num_base::_S_izero]) + { + if (!__found_mantissa) + { + __xtrc += '0'; + __found_mantissa = true; + } + ++__sep_pos; + + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + else + break; + } + + // Only need acceptable digits for floating point numbers. + bool __found_dec = false; + bool __found_sci = false; + string __found_grouping; + if (__lc->_M_use_grouping) + __found_grouping.reserve(32); + const char_type* __lit_zero = __lit + __num_base::_S_izero; + + if (!__lc->_M_allocated) + // "C" locale + while (!__testeof) + { + const int __digit = _M_find(__lit_zero, 10, __c); + if (__digit != -1) + { + __xtrc += '0' + __digit; + __found_mantissa = true; + } + else if (__c == __lc->_M_decimal_point + && !__found_dec && !__found_sci) + { + __xtrc += '.'; + __found_dec = true; + } + else if ((__c == __lit[__num_base::_S_ie] + || __c == __lit[__num_base::_S_iE]) + && !__found_sci && __found_mantissa) + { + // Scientific notation. + __xtrc += 'e'; + __found_sci = true; + + // Remove optional plus or minus sign, if they exist. + if (++__beg != __end) + { + __c = *__beg; + const bool __plus = __c == __lit[__num_base::_S_iplus]; + if (__plus || __c == __lit[__num_base::_S_iminus]) + __xtrc += __plus ? '+' : '-'; + else + continue; + } + else + { + __testeof = true; + break; + } + } + else + break; + + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + else + while (!__testeof) + { + // According to 22.2.2.1.2, p8-9, first look for thousands_sep + // and decimal_point. + if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep) + { + if (!__found_dec && !__found_sci) + { + // NB: Thousands separator at the beginning of a string + // is a no-no, as is two consecutive thousands separators. + if (__sep_pos) + { + __found_grouping += static_cast<char>(__sep_pos); + __sep_pos = 0; + } + else + { + // NB: __convert_to_v will not assign __v and will + // set the failbit. + __xtrc.clear(); + break; + } + } + else + break; + } + else if (__c == __lc->_M_decimal_point) + { + if (!__found_dec && !__found_sci) + { + // If no grouping chars are seen, no grouping check + // is applied. Therefore __found_grouping is adjusted + // only if decimal_point comes after some thousands_sep. + if (__found_grouping.size()) + __found_grouping += static_cast<char>(__sep_pos); + __xtrc += '.'; + __found_dec = true; + } + else + break; + } + else + { + const char_type* __q = + __traits_type::find(__lit_zero, 10, __c); + if (__q) + { + __xtrc += '0' + (__q - __lit_zero); + __found_mantissa = true; + ++__sep_pos; + } + else if ((__c == __lit[__num_base::_S_ie] + || __c == __lit[__num_base::_S_iE]) + && !__found_sci && __found_mantissa) + { + // Scientific notation. + if (__found_grouping.size() && !__found_dec) + __found_grouping += static_cast<char>(__sep_pos); + __xtrc += 'e'; + __found_sci = true; + + // Remove optional plus or minus sign, if they exist. + if (++__beg != __end) + { + __c = *__beg; + const bool __plus = __c == __lit[__num_base::_S_iplus]; + if ((__plus || __c == __lit[__num_base::_S_iminus]) + && !(__lc->_M_use_grouping + && __c == __lc->_M_thousands_sep) + && !(__c == __lc->_M_decimal_point)) + __xtrc += __plus ? '+' : '-'; + else + continue; + } + else + { + __testeof = true; + break; + } + } + else + break; + } + + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + + // Digit grouping is checked. If grouping and found_grouping don't + // match, then get very very upset, and set failbit. + if (__found_grouping.size()) + { + // Add the ending grouping if a decimal or 'e'/'E' wasn't found. + if (!__found_dec && !__found_sci) + __found_grouping += static_cast<char>(__sep_pos); + + if (!std::__verify_grouping(__lc->_M_grouping, + __lc->_M_grouping_size, + __found_grouping)) + __err = ios_base::failbit; + } + + return __beg; + } + + template<typename _CharT, typename _InIter> + template<typename _ValueT> + _InIter + num_get<_CharT, _InIter>:: + _M_extract_int(_InIter __beg, _InIter __end, ios_base& __io, + ios_base::iostate& __err, _ValueT& __v) const + { + typedef char_traits<_CharT> __traits_type; + using __gnu_cxx::__add_unsigned; + typedef typename __add_unsigned<_ValueT>::__type __unsigned_type; + typedef __numpunct_cache<_CharT> __cache_type; + __use_cache<__cache_type> __uc; + const locale& __loc = __io._M_getloc(); + const __cache_type* __lc = __uc(__loc); + const _CharT* __lit = __lc->_M_atoms_in; + char_type __c = char_type(); + + // NB: Iff __basefield == 0, __base can change based on contents. + const ios_base::fmtflags __basefield = __io.flags() + & ios_base::basefield; + const bool __oct = __basefield == ios_base::oct; + int __base = __oct ? 8 : (__basefield == ios_base::hex ? 16 : 10); + + // True if __beg becomes equal to __end. + bool __testeof = __beg == __end; + + // First check for sign. + bool __negative = false; + if (!__testeof) + { + __c = *__beg; + __negative = __c == __lit[__num_base::_S_iminus]; + if ((__negative || __c == __lit[__num_base::_S_iplus]) + && !(__lc->_M_use_grouping && __c == __lc->_M_thousands_sep) + && !(__c == __lc->_M_decimal_point)) + { + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + } + + // Next, look for leading zeros and check required digits + // for base formats. + bool __found_zero = false; + int __sep_pos = 0; + while (!__testeof) + { + if ((__lc->_M_use_grouping && __c == __lc->_M_thousands_sep) + || __c == __lc->_M_decimal_point) + break; + else if (__c == __lit[__num_base::_S_izero] + && (!__found_zero || __base == 10)) + { + __found_zero = true; + ++__sep_pos; + if (__basefield == 0) + __base = 8; + if (__base == 8) + __sep_pos = 0; + } + else if (__found_zero + && (__c == __lit[__num_base::_S_ix] + || __c == __lit[__num_base::_S_iX])) + { + if (__basefield == 0) + __base = 16; + if (__base == 16) + { + __found_zero = false; + __sep_pos = 0; + } + else + break; + } + else + break; + + if (++__beg != __end) + { + __c = *__beg; + if (!__found_zero) + break; + } + else + __testeof = true; + } + + // At this point, base is determined. If not hex, only allow + // base digits as valid input. + const size_t __len = (__base == 16 ? __num_base::_S_iend + - __num_base::_S_izero : __base); + + // Extract. + string __found_grouping; + if (__lc->_M_use_grouping) + __found_grouping.reserve(32); + bool __testfail = false; + bool __testoverflow = false; + const __unsigned_type __max = + (__negative && __gnu_cxx::__numeric_traits<_ValueT>::__is_signed) + ? -__gnu_cxx::__numeric_traits<_ValueT>::__min + : __gnu_cxx::__numeric_traits<_ValueT>::__max; + const __unsigned_type __smax = __max / __base; + __unsigned_type __result = 0; + int __digit = 0; + const char_type* __lit_zero = __lit + __num_base::_S_izero; + + if (!__lc->_M_allocated) + // "C" locale + while (!__testeof) + { + __digit = _M_find(__lit_zero, __len, __c); + if (__digit == -1) + break; + + if (__result > __smax) + __testoverflow = true; + else + { + __result *= __base; + __testoverflow |= __result > __max - __digit; + __result += __digit; + ++__sep_pos; + } + + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + else + while (!__testeof) + { + // According to 22.2.2.1.2, p8-9, first look for thousands_sep + // and decimal_point. + if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep) + { + // NB: Thousands separator at the beginning of a string + // is a no-no, as is two consecutive thousands separators. + if (__sep_pos) + { + __found_grouping += static_cast<char>(__sep_pos); + __sep_pos = 0; + } + else + { + __testfail = true; + break; + } + } + else if (__c == __lc->_M_decimal_point) + break; + else + { + const char_type* __q = + __traits_type::find(__lit_zero, __len, __c); + if (!__q) + break; + + __digit = __q - __lit_zero; + if (__digit > 15) + __digit -= 6; + if (__result > __smax) + __testoverflow = true; + else + { + __result *= __base; + __testoverflow |= __result > __max - __digit; + __result += __digit; + ++__sep_pos; + } + } + + if (++__beg != __end) + __c = *__beg; + else + __testeof = true; + } + + // Digit grouping is checked. If grouping and found_grouping don't + // match, then get very very upset, and set failbit. + if (__found_grouping.size()) + { + // Add the ending grouping. + __found_grouping += static_cast<char>(__sep_pos); + + if (!std::__verify_grouping(__lc->_M_grouping, + __lc->_M_grouping_size, + __found_grouping)) + __err = ios_base::failbit; + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 23. Num_get overflow result. + if ((!__sep_pos && !__found_zero && !__found_grouping.size()) + || __testfail) + { + __v = 0; + __err = ios_base::failbit; + } + else if (__testoverflow) + { + if (__negative + && __gnu_cxx::__numeric_traits<_ValueT>::__is_signed) + __v = __gnu_cxx::__numeric_traits<_ValueT>::__min; + else + __v = __gnu_cxx::__numeric_traits<_ValueT>::__max; + __err = ios_base::failbit; + } + else + __v = __negative ? -__result : __result; + + if (__testeof) + __err |= ios_base::eofbit; + return __beg; + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 17. Bad bool parsing + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, bool& __v) const + { + if (!(__io.flags() & ios_base::boolalpha)) + { + // Parse bool values as long. + // NB: We can't just call do_get(long) here, as it might + // refer to a derived class. + long __l = -1; + __beg = _M_extract_int(__beg, __end, __io, __err, __l); + if (__l == 0 || __l == 1) + __v = bool(__l); + else + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 23. Num_get overflow result. + __v = true; + __err = ios_base::failbit; + if (__beg == __end) + __err |= ios_base::eofbit; + } + } + else + { + // Parse bool values as alphanumeric. + typedef __numpunct_cache<_CharT> __cache_type; + __use_cache<__cache_type> __uc; + const locale& __loc = __io._M_getloc(); + const __cache_type* __lc = __uc(__loc); + + bool __testf = true; + bool __testt = true; + bool __donef = __lc->_M_falsename_size == 0; + bool __donet = __lc->_M_truename_size == 0; + bool __testeof = false; + size_t __n = 0; + while (!__donef || !__donet) + { + if (__beg == __end) + { + __testeof = true; + break; + } + + const char_type __c = *__beg; + + if (!__donef) + __testf = __c == __lc->_M_falsename[__n]; + + if (!__testf && __donet) + break; + + if (!__donet) + __testt = __c == __lc->_M_truename[__n]; + + if (!__testt && __donef) + break; + + if (!__testt && !__testf) + break; + + ++__n; + ++__beg; + + __donef = !__testf || __n >= __lc->_M_falsename_size; + __donet = !__testt || __n >= __lc->_M_truename_size; + } + if (__testf && __n == __lc->_M_falsename_size && __n) + { + __v = false; + if (__testt && __n == __lc->_M_truename_size) + __err = ios_base::failbit; + else + __err = __testeof ? ios_base::eofbit : ios_base::goodbit; + } + else if (__testt && __n == __lc->_M_truename_size && __n) + { + __v = true; + __err = __testeof ? ios_base::eofbit : ios_base::goodbit; + } + else + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 23. Num_get overflow result. + __v = false; + __err = ios_base::failbit; + if (__testeof) + __err |= ios_base::eofbit; + } + } + return __beg; + } + + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, float& __v) const + { + string __xtrc; + __xtrc.reserve(32); + __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); + std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale()); + if (__beg == __end) + __err |= ios_base::eofbit; + return __beg; + } + + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, double& __v) const + { + string __xtrc; + __xtrc.reserve(32); + __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); + std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale()); + if (__beg == __end) + __err |= ios_base::eofbit; + return __beg; + } + +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + __do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, double& __v) const + { + string __xtrc; + __xtrc.reserve(32); + __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); + std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale()); + if (__beg == __end) + __err |= ios_base::eofbit; + return __beg; + } +#endif + + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, long double& __v) const + { + string __xtrc; + __xtrc.reserve(32); + __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); + std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale()); + if (__beg == __end) + __err |= ios_base::eofbit; + return __beg; + } + + template<typename _CharT, typename _InIter> + _InIter + num_get<_CharT, _InIter>:: + do_get(iter_type __beg, iter_type __end, ios_base& __io, + ios_base::iostate& __err, void*& __v) const + { + // Prepare for hex formatted input. + typedef ios_base::fmtflags fmtflags; + const fmtflags __fmt = __io.flags(); + __io.flags((__fmt & ~ios_base::basefield) | ios_base::hex); + + typedef __gnu_cxx::__conditional_type<(sizeof(void*) + <= sizeof(unsigned long)), + unsigned long, unsigned long long>::__type _UIntPtrType; + + _UIntPtrType __ul; + __beg = _M_extract_int(__beg, __end, __io, __err, __ul); + + // Reset from hex formatted input. + __io.flags(__fmt); + + __v = reinterpret_cast<void*>(__ul); + return __beg; + } + + // For use by integer and floating-point types after they have been + // converted into a char_type string. + template<typename _CharT, typename _OutIter> + void + num_put<_CharT, _OutIter>:: + _M_pad(_CharT __fill, streamsize __w, ios_base& __io, + _CharT* __new, const _CharT* __cs, int& __len) const + { + // [22.2.2.2.2] Stage 3. + // If necessary, pad. + __pad<_CharT, char_traits<_CharT> >::_S_pad(__io, __fill, __new, + __cs, __w, __len); + __len = static_cast<int>(__w); + } + +_GLIBCXX_END_LDBL_NAMESPACE + + template<typename _CharT, typename _ValueT> + int + __int_to_char(_CharT* __bufend, _ValueT __v, const _CharT* __lit, + ios_base::fmtflags __flags, bool __dec) + { + _CharT* __buf = __bufend; + if (__builtin_expect(__dec, true)) + { + // Decimal. + do + { + *--__buf = __lit[(__v % 10) + __num_base::_S_odigits]; + __v /= 10; + } + while (__v != 0); + } + else if ((__flags & ios_base::basefield) == ios_base::oct) + { + // Octal. + do + { + *--__buf = __lit[(__v & 0x7) + __num_base::_S_odigits]; + __v >>= 3; + } + while (__v != 0); + } + else + { + // Hex. + const bool __uppercase = __flags & ios_base::uppercase; + const int __case_offset = __uppercase ? __num_base::_S_oudigits + : __num_base::_S_odigits; + do + { + *--__buf = __lit[(__v & 0xf) + __case_offset]; + __v >>= 4; + } + while (__v != 0); + } + return __bufend - __buf; + } + +_GLIBCXX_BEGIN_LDBL_NAMESPACE + + template<typename _CharT, typename _OutIter> + void + num_put<_CharT, _OutIter>:: + _M_group_int(const char* __grouping, size_t __grouping_size, _CharT __sep, + ios_base&, _CharT* __new, _CharT* __cs, int& __len) const + { + _CharT* __p = std::__add_grouping(__new, __sep, __grouping, + __grouping_size, __cs, __cs + __len); + __len = __p - __new; + } + + template<typename _CharT, typename _OutIter> + template<typename _ValueT> + _OutIter + num_put<_CharT, _OutIter>:: + _M_insert_int(_OutIter __s, ios_base& __io, _CharT __fill, + _ValueT __v) const + { + using __gnu_cxx::__add_unsigned; + typedef typename __add_unsigned<_ValueT>::__type __unsigned_type; + typedef __numpunct_cache<_CharT> __cache_type; + __use_cache<__cache_type> __uc; + const locale& __loc = __io._M_getloc(); + const __cache_type* __lc = __uc(__loc); + const _CharT* __lit = __lc->_M_atoms_out; + const ios_base::fmtflags __flags = __io.flags(); + + // Long enough to hold hex, dec, and octal representations. + const int __ilen = 5 * sizeof(_ValueT); + _CharT* __cs = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * __ilen)); + + // [22.2.2.2.2] Stage 1, numeric conversion to character. + // Result is returned right-justified in the buffer. + const ios_base::fmtflags __basefield = __flags & ios_base::basefield; + const bool __dec = (__basefield != ios_base::oct + && __basefield != ios_base::hex); + const __unsigned_type __u = ((__v > 0 || !__dec) + ? __unsigned_type(__v) + : -__unsigned_type(__v)); + int __len = __int_to_char(__cs + __ilen, __u, __lit, __flags, __dec); + __cs += __ilen - __len; + + // Add grouping, if necessary. + if (__lc->_M_use_grouping) + { + // Grouping can add (almost) as many separators as the number + // of digits + space is reserved for numeric base or sign. + _CharT* __cs2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * (__len + 1) + * 2)); + _M_group_int(__lc->_M_grouping, __lc->_M_grouping_size, + __lc->_M_thousands_sep, __io, __cs2 + 2, __cs, __len); + __cs = __cs2 + 2; + } + + // Complete Stage 1, prepend numeric base or sign. + if (__builtin_expect(__dec, true)) + { + // Decimal. + if (__v >= 0) + { + if (bool(__flags & ios_base::showpos) + && __gnu_cxx::__numeric_traits<_ValueT>::__is_signed) + *--__cs = __lit[__num_base::_S_oplus], ++__len; + } + else + *--__cs = __lit[__num_base::_S_ominus], ++__len; + } + else if (bool(__flags & ios_base::showbase) && __v) + { + if (__basefield == ios_base::oct) + *--__cs = __lit[__num_base::_S_odigits], ++__len; + else + { + // 'x' or 'X' + const bool __uppercase = __flags & ios_base::uppercase; + *--__cs = __lit[__num_base::_S_ox + __uppercase]; + // '0' + *--__cs = __lit[__num_base::_S_odigits]; + __len += 2; + } + } + + // Pad. + const streamsize __w = __io.width(); + if (__w > static_cast<streamsize>(__len)) + { + _CharT* __cs3 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * __w)); + _M_pad(__fill, __w, __io, __cs3, __cs, __len); + __cs = __cs3; + } + __io.width(0); + + // [22.2.2.2.2] Stage 4. + // Write resulting, fully-formatted string to output iterator. + return std::__write(__s, __cs, __len); + } + + template<typename _CharT, typename _OutIter> + void + num_put<_CharT, _OutIter>:: + _M_group_float(const char* __grouping, size_t __grouping_size, + _CharT __sep, const _CharT* __p, _CharT* __new, + _CharT* __cs, int& __len) const + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 282. What types does numpunct grouping refer to? + // Add grouping, if necessary. + const int __declen = __p ? __p - __cs : __len; + _CharT* __p2 = std::__add_grouping(__new, __sep, __grouping, + __grouping_size, + __cs, __cs + __declen); + + // Tack on decimal part. + int __newlen = __p2 - __new; + if (__p) + { + char_traits<_CharT>::copy(__p2, __p, __len - __declen); + __newlen += __len - __declen; + } + __len = __newlen; + } + + // The following code uses vsnprintf (or vsprintf(), when + // _GLIBCXX_USE_C99 is not defined) to convert floating point values + // for insertion into a stream. An optimization would be to replace + // them with code that works directly on a wide buffer and then use + // __pad to do the padding. It would be good to replace them anyway + // to gain back the efficiency that C++ provides by knowing up front + // the type of the values to insert. Also, sprintf is dangerous + // since may lead to accidental buffer overruns. This + // implementation follows the C++ standard fairly directly as + // outlined in 22.2.2.2 [lib.locale.num.put] + template<typename _CharT, typename _OutIter> + template<typename _ValueT> + _OutIter + num_put<_CharT, _OutIter>:: + _M_insert_float(_OutIter __s, ios_base& __io, _CharT __fill, char __mod, + _ValueT __v) const + { + typedef __numpunct_cache<_CharT> __cache_type; + __use_cache<__cache_type> __uc; + const locale& __loc = __io._M_getloc(); + const __cache_type* __lc = __uc(__loc); + + // Use default precision if out of range. + const streamsize __prec = __io.precision() < 0 ? 6 : __io.precision(); + + const int __max_digits = + __gnu_cxx::__numeric_traits<_ValueT>::__digits10; + + // [22.2.2.2.2] Stage 1, numeric conversion to character. + int __len; + // Long enough for the max format spec. + char __fbuf[16]; + __num_base::_S_format_float(__io, __fbuf, __mod); + +#ifdef _GLIBCXX_USE_C99 + // First try a buffer perhaps big enough (most probably sufficient + // for non-ios_base::fixed outputs) + int __cs_size = __max_digits * 3; + char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); + __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, + __fbuf, __prec, __v); + + // If the buffer was not large enough, try again with the correct size. + if (__len >= __cs_size) + { + __cs_size = __len + 1; + __cs = static_cast<char*>(__builtin_alloca(__cs_size)); + __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, + __fbuf, __prec, __v); + } +#else + // Consider the possibility of long ios_base::fixed outputs + const bool __fixed = __io.flags() & ios_base::fixed; + const int __max_exp = + __gnu_cxx::__numeric_traits<_ValueT>::__max_exponent10; + + // The size of the output string is computed as follows. + // ios_base::fixed outputs may need up to __max_exp + 1 chars + // for the integer part + __prec chars for the fractional part + // + 3 chars for sign, decimal point, '\0'. On the other hand, + // for non-fixed outputs __max_digits * 2 + __prec chars are + // largely sufficient. + const int __cs_size = __fixed ? __max_exp + __prec + 4 + : __max_digits * 2 + __prec; + char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); + __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, __fbuf, + __prec, __v); +#endif + + // [22.2.2.2.2] Stage 2, convert to char_type, using correct + // numpunct.decimal_point() values for '.' and adding grouping. + const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); + + _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * __len)); + __ctype.widen(__cs, __cs + __len, __ws); + + // Replace decimal point. + _CharT* __wp = 0; + const char* __p = char_traits<char>::find(__cs, __len, '.'); + if (__p) + { + __wp = __ws + (__p - __cs); + *__wp = __lc->_M_decimal_point; + } + + // Add grouping, if necessary. + // N.B. Make sure to not group things like 2e20, i.e., no decimal + // point, scientific notation. + if (__lc->_M_use_grouping + && (__wp || __len < 3 || (__cs[1] <= '9' && __cs[2] <= '9' + && __cs[1] >= '0' && __cs[2] >= '0'))) + { + // Grouping can add (almost) as many separators as the + // number of digits, but no more. + _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * __len * 2)); + + streamsize __off = 0; + if (__cs[0] == '-' || __cs[0] == '+') + { + __off = 1; + __ws2[0] = __ws[0]; + __len -= 1; + } + + _M_group_float(__lc->_M_grouping, __lc->_M_grouping_size, + __lc->_M_thousands_sep, __wp, __ws2 + __off, + __ws + __off, __len); + __len += __off; + + __ws = __ws2; + } + + // Pad. + const streamsize __w = __io.width(); + if (__w > static_cast<streamsize>(__len)) + { + _CharT* __ws3 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * __w)); + _M_pad(__fill, __w, __io, __ws3, __ws, __len); + __ws = __ws3; + } + __io.width(0); + + // [22.2.2.2.2] Stage 4. + // Write resulting, fully-formatted string to output iterator. + return std::__write(__s, __ws, __len); + } + + template<typename _CharT, typename _OutIter> + _OutIter + num_put<_CharT, _OutIter>:: + do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const + { + const ios_base::fmtflags __flags = __io.flags(); + if ((__flags & ios_base::boolalpha) == 0) + { + const long __l = __v; + __s = _M_insert_int(__s, __io, __fill, __l); + } + else + { + typedef __numpunct_cache<_CharT> __cache_type; + __use_cache<__cache_type> __uc; + const locale& __loc = __io._M_getloc(); + const __cache_type* __lc = __uc(__loc); + + const _CharT* __name = __v ? __lc->_M_truename + : __lc->_M_falsename; + int __len = __v ? __lc->_M_truename_size + : __lc->_M_falsename_size; + + const streamsize __w = __io.width(); + if (__w > static_cast<streamsize>(__len)) + { + const streamsize __plen = __w - __len; + _CharT* __ps + = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) + * __plen)); + + char_traits<_CharT>::assign(__ps, __plen, __fill); + __io.width(0); + + if ((__flags & ios_base::adjustfield) == ios_base::left) + { + __s = std::__write(__s, __name, __len); + __s = std::__write(__s, __ps, __plen); + } + else + { + __s = std::__write(__s, __ps, __plen); + __s = std::__write(__s, __name, __len); + } + return __s; + } + __io.width(0); + __s = std::__write(__s, __name, __len); + } + return __s; + } + + template<typename _CharT, typename _OutIter> + _OutIter + num_put<_CharT, _OutIter>:: + do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const + { return _M_insert_float(__s, __io, __fill, char(), __v); } + +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ + template<typename _CharT, typename _OutIter> + _OutIter + num_put<_CharT, _OutIter>:: + __do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const + { return _M_insert_float(__s, __io, __fill, char(), __v); } +#endif + + template<typename _CharT, typename _OutIter> + _OutIter + num_put<_CharT, _OutIter>:: + do_put(iter_type __s, ios_base& __io, char_type __fill, + long double __v) const + { return _M_insert_float(__s, __io, __fill, 'L', __v); } + + template<typename _CharT, typename _OutIter> + _OutIter + num_put<_CharT, _OutIter>:: + do_put(iter_type __s, ios_base& __io, char_type __fill, + const void* __v) const + { + const ios_base::fmtflags __flags = __io.flags(); + const ios_base::fmtflags __fmt = ~(ios_base::basefield + | ios_base::uppercase); + __io.flags((__flags & __fmt) | (ios_base::hex | ios_base::showbase)); + + typedef __gnu_cxx::__conditional_type<(sizeof(const void*) + <= sizeof(unsigned long)), + unsigned long, unsigned long long>::__type _UIntPtrType; + + __s = _M_insert_int(__s, __io, __fill, + reinterpret_cast<_UIntPtrType>(__v)); + __io.flags(__flags); + return __s; + } + +_GLIBCXX_END_LDBL_NAMESPACE + + // Construct correctly padded string, as per 22.2.2.2.2 + // Assumes + // __newlen > __oldlen + // __news is allocated for __newlen size + + // NB: Of the two parameters, _CharT can be deduced from the + // function arguments. The other (_Traits) has to be explicitly specified. + template<typename _CharT, typename _Traits> + void + __pad<_CharT, _Traits>::_S_pad(ios_base& __io, _CharT __fill, + _CharT* __news, const _CharT* __olds, + streamsize __newlen, streamsize __oldlen) + { + const size_t __plen = static_cast<size_t>(__newlen - __oldlen); + const ios_base::fmtflags __adjust = __io.flags() & ios_base::adjustfield; + + // Padding last. + if (__adjust == ios_base::left) + { + _Traits::copy(__news, __olds, __oldlen); + _Traits::assign(__news + __oldlen, __plen, __fill); + return; + } + + size_t __mod = 0; + if (__adjust == ios_base::internal) + { + // Pad after the sign, if there is one. + // Pad after 0[xX], if there is one. + // Who came up with these rules, anyway? Jeeze. + const locale& __loc = __io._M_getloc(); + const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); + + if (__ctype.widen('-') == __olds[0] + || __ctype.widen('+') == __olds[0]) + { + __news[0] = __olds[0]; + __mod = 1; + ++__news; + } + else if (__ctype.widen('0') == __olds[0] + && __oldlen > 1 + && (__ctype.widen('x') == __olds[1] + || __ctype.widen('X') == __olds[1])) + { + __news[0] = __olds[0]; + __news[1] = __olds[1]; + __mod = 2; + __news += 2; + } + // else Padding first. + } + _Traits::assign(__news, __plen, __fill); + _Traits::copy(__news + __plen, __olds + __mod, __oldlen - __mod); + } + + template<typename _CharT> + _CharT* + __add_grouping(_CharT* __s, _CharT __sep, + const char* __gbeg, size_t __gsize, + const _CharT* __first, const _CharT* __last) + { + size_t __idx = 0; + size_t __ctr = 0; + + while (__last - __first > __gbeg[__idx] + && static_cast<signed char>(__gbeg[__idx]) > 0 + && __gbeg[__idx] != __gnu_cxx::__numeric_traits<char>::__max) + { + __last -= __gbeg[__idx]; + __idx < __gsize - 1 ? ++__idx : ++__ctr; + } + + while (__first != __last) + *__s++ = *__first++; + + while (__ctr--) + { + *__s++ = __sep; + for (char __i = __gbeg[__idx]; __i > 0; --__i) + *__s++ = *__first++; + } + + while (__idx--) + { + *__s++ = __sep; + for (char __i = __gbeg[__idx]; __i > 0; --__i) + *__s++ = *__first++; + } + + return __s; + } + + // Inhibit implicit instantiations for required instantiations, + // which are defined via explicit instantiations elsewhere. + // NB: This syntax is a GNU extension. +#if _GLIBCXX_EXTERN_TEMPLATE + extern template class numpunct<char>; + extern template class numpunct_byname<char>; + extern template class _GLIBCXX_LDBL_NAMESPACE num_get<char>; + extern template class _GLIBCXX_LDBL_NAMESPACE num_put<char>; + extern template class ctype_byname<char>; + + extern template + const ctype<char>& + use_facet<ctype<char> >(const locale&); + + extern template + const numpunct<char>& + use_facet<numpunct<char> >(const locale&); + + extern template + const num_put<char>& + use_facet<num_put<char> >(const locale&); + + extern template + const num_get<char>& + use_facet<num_get<char> >(const locale&); + + extern template + bool + has_facet<ctype<char> >(const locale&); + + extern template + bool + has_facet<numpunct<char> >(const locale&); + + extern template + bool + has_facet<num_put<char> >(const locale&); + + extern template + bool + has_facet<num_get<char> >(const locale&); + +#ifdef _GLIBCXX_USE_WCHAR_T + extern template class numpunct<wchar_t>; + extern template class numpunct_byname<wchar_t>; + extern template class _GLIBCXX_LDBL_NAMESPACE num_get<wchar_t>; + extern template class _GLIBCXX_LDBL_NAMESPACE num_put<wchar_t>; + extern template class ctype_byname<wchar_t>; + + extern template + const ctype<wchar_t>& + use_facet<ctype<wchar_t> >(const locale&); + + extern template + const numpunct<wchar_t>& + use_facet<numpunct<wchar_t> >(const locale&); + + extern template + const num_put<wchar_t>& + use_facet<num_put<wchar_t> >(const locale&); + + extern template + const num_get<wchar_t>& + use_facet<num_get<wchar_t> >(const locale&); + + extern template + bool + has_facet<ctype<wchar_t> >(const locale&); + + extern template + bool + has_facet<numpunct<wchar_t> >(const locale&); + + extern template + bool + has_facet<num_put<wchar_t> >(const locale&); + + extern template + bool + has_facet<num_get<wchar_t> >(const locale&); +#endif +#endif + +_GLIBCXX_END_NAMESPACE + +#endif |