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Whole document tree                   locale_facets.tcc Go to the documentation of this file. // Locale support -*- C++ -*- // Copyright (C) 1997, 1998, 1999, 2000, 2001 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 2, 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. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING. If not, write to the Free // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, // USA. // As a special exception, you may use this file as part of a free software // library without restriction. Specifically, if other files instantiate // templates or use macros or inline functions from this file, or you compile // this file and link it with other files to produce an executable, this // file does not by itself cause the resulting executable to be covered by // the GNU General Public License. This exception does not however // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. // Warning: this file is not meant for user inclusion. Use <locale>. #ifndef _CPP_BITS_LOCFACETS_TCC #define _CPP_BITS_LOCFACETS_TCC 1 #include <bits/std_cerrno.h> #include <bits/std_clocale.h> // For localeconv #include <bits/std_cstdlib.h> // For strof, strtold #include <bits/std_limits.h> // For numeric_limits #include <bits/std_memory.h> // For auto_ptr #include <bits/sbuf_iter.h> // For streambuf_iterators #include <bits/std_cctype.h> // For isspace #include <typeinfo> // For bad_cast #include <bits/std_vector.h> namespace std { template<typename _Facet> locale locale::combine(const locale& __other) { locale __copy(*this); __copy._M_impl->_M_replace_facet(__other._M_impl, &_Facet::id); return __copy; } template<typename _CharT, typename _Traits, typename _Alloc> bool locale::operator()(const basic_string<_CharT, _Traits, _Alloc>& __s1, const basic_string<_CharT, _Traits, _Alloc>& __s2) const { typedef std::collate<_CharT> __collate_type; const __collate_type* __fcoll = &use_facet<__collate_type>(*this); return (__fcoll->compare(__s1.data(), __s1.data() + __s1.length(), __s2.data(), __s2.data() + __s2.length()) < 0); } template<typename _Facet> const _Facet& use_facet(const locale& __loc) { typedef locale::_Impl::__vec_facet __vec_facet; size_t __i = _Facet::id._M_index; __vec_facet* __facet = __loc._M_impl->_M_facets; const locale::facet* __fp = (*__facet)[__i]; if (__fp == 0 || __i >= __facet->size()) __throw_bad_cast(); return static_cast<const _Facet&>(*__fp); } template<typename _Facet> bool has_facet(const locale& __loc) throw() { typedef locale::_Impl::__vec_facet __vec_facet; size_t __i = _Facet::id._M_index; __vec_facet* __facet = __loc._M_impl->_M_facets; return (__i < __facet->size() && (*__facet)[__i] != 0); } // __match_parallel // matches input __s against a set of __ntargs strings in __targets, // placing in __matches a vector of indices into __targets which // match, and in __remain the number of such matches. If it hits // end of sequence before it minimizes the set, sets __eof. // Empty strings are never matched. template<typename _InIter, typename _CharT> _InIter __match_parallel(_InIter __s, _InIter __end, int __ntargs, const basic_string<_CharT>* __targets, int* __matches, int& __remain, bool& __eof) { typedef basic_string<_CharT> __string_type; __eof = false; for (int __ti = 0; __ti < __ntargs; ++__ti) __matches[__ti] = __ti; __remain = __ntargs; size_t __pos = 0; do { int __ti = 0; while (__ti < __remain && __pos == __targets[__matches[__ti]].size()) ++__ti; if (__ti == __remain) { if (__pos == 0) __remain = 0; return __s; } if (__s == __end) __eof = true; bool __matched = false; for (int __ti2 = 0; __ti2 < __remain; ) { const __string_type& __target = __targets[__matches[__ti2]]; if (__pos < __target.size()) { if (__eof || __target[__pos] != *__s) { __matches[__ti2] = __matches[--__remain]; continue; } __matched = true; } ++__ti2; } if (__matched) { ++__s; ++__pos; } for (int __ti3 = 0; __ti3 < __remain;) { if (__pos > __targets[__matches[__ti3]].size()) { __matches[__ti3] = __matches[--__remain]; continue; } ++__ti3; } } while (__remain); return __s; } template<typename _CharT> _Format_cache<_CharT>::_Format_cache() : _M_valid(true), _M_use_grouping(false) { } template<> _Format_cache<char>::_Format_cache(); template<> _Format_cache<wchar_t>::_Format_cache(); template<typename _CharT> void _Format_cache<_CharT>::_M_populate(ios_base& __io) { locale __loc = __io.getloc (); numpunct<_CharT> const& __np = use_facet<numpunct<_CharT> >(__loc); _M_truename = __np.truename(); _M_falsename = __np.falsename(); _M_thousands_sep = __np.thousands_sep(); _M_decimal_point = __np.decimal_point(); _M_grouping = __np.grouping(); _M_use_grouping = _M_grouping.size() != 0 && _M_grouping.data()[0] != 0; _M_valid = true; } // This function is always called via a pointer installed in // an ios_base by ios_base::register_callback. template<typename _CharT> void _Format_cache<_CharT>:: _S_callback(ios_base::event __ev, ios_base& __ios, int __ix) throw() { void*& __p = __ios.pword(__ix); switch (__ev) { case ios_base::erase_event: delete static_cast<_Format_cache<_CharT>*>(__p); __p = 0; break; case ios_base::copyfmt_event: // If just stored zero, the callback would get registered again. try { __p = new _Format_cache<_CharT>; } catch(...) { } break; case ios_base::imbue_event: static_cast<_Format_cache<_CharT>*>(__p)->_M_valid = false; break; } } template<typename _CharT> _Format_cache<_CharT>* _Format_cache<_CharT>::_S_get(ios_base& __ios) { if (!_S_pword_ix) _S_pword_ix = ios_base::xalloc(); // XXX MT void*& __p = __ios.pword(_S_pword_ix); // XXX What if pword fails? must check failbit, throw. if (__p == 0) // XXX MT? maybe sentry takes care of it { auto_ptr<_Format_cache<_CharT> > __ap(new _Format_cache<_CharT>); __ios.register_callback(&_Format_cache<_CharT>::_S_callback, _S_pword_ix); __p = __ap.release(); } _Format_cache<_CharT>* __ncp = static_cast<_Format_cache<_CharT>*>(__p); if (!__ncp->_M_valid) __ncp->_M_populate(__ios); return __ncp; } // This member function takes an (w)istreambuf_iterator object and // parses it into a generic char array suitable for parsing with // strto[l,ll,f,d]. The thought was to encapsulate the conversion // into this one function, and thus the num_get::do_get member // functions can just adjust for the type of the overloaded // argument and process the char array returned from _M_extract. // Other things were also considered, including a fused // multiply-add loop that would obviate the need for any call to // strto... at all: however, it would b e a bit of a pain, because // you'd have to be able to return either floating or integral // types, etc etc. The current approach seems to be smack dab in // the middle between an unoptimized approach using sscanf, and // some kind of hyper-optimized approach alluded to above. // XXX // Need to do partial specialization to account for differences // between character sets. For char, this is pretty // straightforward, but for wchar_t, the conversion to a plain-jane // char type is a bit more involved. template<typename _CharT, typename _InIter> void num_get<_CharT, _InIter>:: _M_extract(_InIter /*__beg*/, _InIter /*__end*/, ios_base& /*__io*/, ios_base::iostate& /*__err*/, char* /*__xtrc*/, int& /*__base*/, bool /*__fp*/) const { // XXX Not currently done: need to expand upon char version below. } template<> void num_get<char, istreambuf_iterator<char> >:: _M_extract(istreambuf_iterator<char> __beg, istreambuf_iterator<char> __end, ios_base& __io, ios_base::iostate& __err, char* __xtrc, int& __base, bool __fp) const; #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS // NB: This is an unresolved library defect #17 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 { // Parse bool values as long if (!(__io.flags() & ios_base::boolalpha)) { // NB: We can't just call do_get(long) here, as it might // refer to a derived class. // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length] = {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; long __l = strtol(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __l <= 1 && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __l; else __err |= ios_base::failbit; } // Parse bool values as alphanumeric else { typedef _Format_cache<char_type> __fcache_type; __fcache_type* __fmt = __fcache_type::_S_get(__io); const char_type* __true = __fmt->_M_truename.c_str(); const char_type* __false = __fmt->_M_falsename.c_str(); const size_t __truelen = __traits_type::length(__true) - 1; const size_t __falselen = __traits_type::length(__false) - 1; for (size_t __pos = 0; __beg != __end; ++__pos) { char_type __c = *__beg++; bool __testf = __c == __false[__pos]; bool __testt = __c == __true[__pos]; if (!(__testf || __testt)) { __err |= ios_base::failbit; break; } else if (__testf && __pos == __falselen) { __v = 0; break; } else if (__testt && __pos == __truelen) { __v = 1; break; } } if (__beg == __end) __err |= ios_base::eofbit; } return __beg; } #endif #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS 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, short& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; long __l = strtol(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0 && __l >= SHRT_MIN && __l <= SHRT_MAX) __v = static_cast<short>(__l); else __err |= ios_base::failbit; 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, int& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length] = {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; long __l = strtol(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0 && __l >= INT_MIN && __l <= INT_MAX) __v = static_cast<int>(__l); else __err |= ios_base::failbit; 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& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; long __l = strtol(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __l; else __err |= ios_base::failbit; return __beg; } #ifdef _GLIBCPP_USE_LONG_LONG 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 long& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; long long __ll = strtoll(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __ll; else __err |= ios_base::failbit; 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, unsigned short& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; unsigned long __ul = strtoul(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0 && __ul <= USHRT_MAX) __v = static_cast<unsigned short>(__ul); else __err |= ios_base::failbit; 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, unsigned int& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; unsigned long __ul = strtoul(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0 && __ul <= UINT_MAX) __v = static_cast<unsigned int>(__ul); else __err |= ios_base::failbit; 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, unsigned long& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length] = {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; unsigned long __ul = strtoul(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __ul; else __err |= ios_base::failbit; return __beg; } #ifdef _GLIBCPP_USE_LONG_LONG 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, unsigned long long& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; unsigned long long __ull = strtoull(__xtrc, &__sanity, __base); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __ull; else __err |= ios_base::failbit; 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, float& __v) const { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 256 for // floating-point types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, true); // Stage 2: convert and store results. char* __sanity; errno = 0; #ifdef _GLIBCPP_USE_C99 float __f = strtof(__xtrc, &__sanity); #else float __f = static_cast<float>(strtod(__xtrc, &__sanity)); #endif if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __f; else __err |= ios_base::failbit; 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 { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 256 for // floating-point types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, true); // Stage 2: convert and store results. char* __sanity; errno = 0; double __d = strtod(__xtrc, &__sanity); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __d; else __err |= ios_base::failbit; return __beg; } #if defined(_GLIBCPP_USE_C99) && !defined(__hpux) 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 { // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 256 for // floating-point types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, true); // Stage 2: convert and store results. char* __sanity; errno = 0; long double __ld = strtold(__xtrc, &__sanity); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __ld; else __err |= ios_base::failbit; return __beg; } #else 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 { // Stage 1: extract char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, true); // Stage 2: determine a conversion specifier. ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield; const char* __conv; if (__basefield == ios_base::oct) __conv = "%Lo"; else if (__basefield == ios_base::hex) __conv = "%LX"; else if (__basefield == 0) __conv = "%Li"; else __conv = "%Lg"; // Stage 3: store results. long double __ld; int __p = sscanf(__xtrc, __conv, &__ld); if (__p && static_cast<typename __traits_type::int_type>(__p) != __traits_type::eof()) __v = __ld; else __err |= ios_base::failbit; 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, void*& __v) const { // Prepare for hex formatted input typedef ios_base::fmtflags fmtflags; fmtflags __fmt = __io.flags(); fmtflags __fmtmask = ~(ios_base::showpos | ios_base::basefield | ios_base::uppercase | ios_base::internal); __io.flags(__fmt & __fmtmask | (ios_base::hex | ios_base::showbase)); // Stage 1: extract and determine the conversion specifier. // Assuming leading zeros eliminated, thus the size of 32 for // integral types. char __xtrc[_M_extract_buffer_length]= {'\0'}; int __base; _M_extract(__beg, __end, __io, __err, __xtrc, __base, false); // Stage 2: convert and store results. char* __sanity; errno = 0; void* __vp = reinterpret_cast<void*>(strtoul(__xtrc, &__sanity, __base)); if (!(__err & ios_base::failbit) && __sanity != __xtrc && *__sanity == '\0' && errno == 0) __v = __vp; else __err |= ios_base::failbit; // Reset from hex formatted input __io.flags(__fmt); return __beg; } // __pad is specialized for ostreambuf_iterator, random access iterator. template <typename _CharT, typename _OutIter> inline _OutIter __pad(_OutIter __s, _CharT __fill, int __padding); template <typename _CharT, typename _RaIter> _RaIter __pad(_RaIter __s, _CharT __fill, int __padding, random_access_iterator_tag) { fill_n(__s, __fill); return __s + __padding; } template <typename _CharT, typename _OutIter, typename _Tag> _OutIter __pad(_OutIter __s, _CharT __fill, int __padding, _Tag) { while (--__padding >= 0) { *__s = __fill; ++__s; } return __s; } template <typename _CharT, typename _OutIter> inline _OutIter __pad(_OutIter __s, _CharT __fill, int __padding) { return __pad(__s, __fill, __padding, typename iterator_traits<_OutIter>::iterator_category()); } template <typename _CharT, typename _OutIter> _OutIter __pad_numeric(_OutIter __s, ios_base::fmtflags /*__flags*/, _CharT /*__fill*/, int /*__width*/, _CharT const* /*__first*/, _CharT const* /*__middle*/, _CharT const* /*__last*/) { // XXX Not currently done: non streambuf_iterator return __s; } // Partial specialization for ostreambuf_iterator. template <typename _CharT> ostreambuf_iterator<_CharT> __pad_numeric(ostreambuf_iterator<_CharT> __s, ios_base::fmtflags __flags, _CharT __fill, int __width, _CharT const* __first, _CharT const* __middle, _CharT const* __last) { typedef ostreambuf_iterator<_CharT> __out_iter; int __padding = __width - (__last - __first); if (__padding < 0) __padding = 0; ios_base::fmtflags __aflags = __flags & ios_base::adjustfield; bool __testfield = __padding == 0 || __aflags == ios_base::left || __aflags == ios_base::internal; // This was needlessly complicated. if (__first != __middle) { if (!__testfield) { __pad(__s, __fill, __padding); __padding = 0; } copy(__first, __middle, __s); } __out_iter __s2 = __s; if (__padding && __aflags != ios_base::left) { __pad(__s2, __fill, __padding); __padding = 0; } __out_iter __s3 = copy(__middle, __last, __s2); if (__padding) __pad(__s3, __fill, __padding); return __s3; } 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 _Format_cache<_CharT>* __fmt = _Format_cache<_CharT>::_S_get(__io); ios_base::fmtflags __flags = __io.flags(); if ((__flags & ios_base::boolalpha) == 0) { unsigned long __uv = __v; return __output_integer(__s, __io, __fill, false, __uv); } else { const char_type* __first; const char_type* __last; if (__v) { __first = __fmt->_M_truename.data(); __last = __first + __fmt->_M_truename.size(); } else { __first = __fmt->_M_falsename.data(); __last = __first + __fmt->_M_falsename.size(); } copy(__first, __last, __s); } return __s; } // __group_digits 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 __grouping != __grend. template <typename _CharT> _CharT* __group_digits(_CharT* __s, _CharT __grsep, char const* __grouping, char const* __grend, _CharT const* __first, _CharT const* __last) { if (__last - __first > *__grouping) { __s = __group_digits(__s, __grsep, (__grouping + 1 == __grend ? __grouping : __grouping + 1), __grend, __first, __last - *__grouping); __first = __last - *__grouping; *__s++ = __grsep; } do { *__s++ = *__first++; } while (__first != __last); return __s; } template <typename _CharT, typename _OutIter, typename _ValueT> _OutIter __output_integer(_OutIter __s, ios_base& __io, _CharT __fill, bool __neg, _ValueT __v) { // Leave room for "+/-," "0x," and commas. const long _M_room = numeric_limits<_ValueT>::digits10 * 2 + 4; _CharT __digits[_M_room]; _CharT* __front = __digits + _M_room; ios_base::fmtflags __flags = __io.flags(); const _Format_cache<_CharT>* __fmt = _Format_cache<_CharT>::_S_get(__io); char const* __table = __fmt->_S_literals + __fmt->_S_digits; ios_base::fmtflags __basefield = (__flags & __io.basefield); _CharT* __sign_end = __front; if (__basefield == ios_base::hex) { if (__flags & ios_base::uppercase) __table += 16; // use ABCDEF do *--__front = __table[__v & 15]; while ((__v >>= 4) != 0); __sign_end = __front; if (__flags & ios_base::showbase) { *--__front = __fmt->_S_literals[__fmt->_S_x + ((__flags & ios_base::uppercase) ? 1 : 0)]; *--__front = __table[0]; } } else if (__basefield == ios_base::oct) { do *--__front = __table[__v & 7]; while ((__v >>= 3) != 0); if (__flags & ios_base::showbase && static_cast<char>(*__front) != __table[0]) *--__front = __table[0]; __sign_end = __front; } else { // NB: This is _lots_ faster than using ldiv. do *--__front = __table[__v % 10]; while ((__v /= 10) != 0); __sign_end = __front; // NB: ios_base:hex || ios_base::oct assumed to be unsigned. if (__neg || (__flags & ios_base::showpos)) *--__front = __fmt->_S_literals[__fmt->_S_plus - __neg]; } // XXX should specialize! if (!__fmt->_M_use_grouping && !__io.width()) return copy(__front, __digits + _M_room, __s); if (!__fmt->_M_use_grouping) return __pad_numeric(__s, __flags, __fill, __io.width(0), __front, __sign_end, __digits + _M_room); _CharT* __p = __digits; while (__front < __sign_end) *__p++ = *__front++; const char* __gr = __fmt->_M_grouping.data(); __front = __group_digits(__p, __fmt->_M_thousands_sep, __gr, __gr + __fmt->_M_grouping.size(), __sign_end, __digits + _M_room); return __pad_numeric(__s, __flags, __fill, __io.width(0), __digits, __p, __front); } template <typename _CharT, typename _OutIter> _OutIter num_put<_CharT, _OutIter>:: do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const { unsigned long __uv = __v; bool __neg = false; if (__v < 0) { __neg = true; __uv = -__uv; } return __output_integer(__s, __io, __fill, __neg, __uv); } template <typename _CharT, typename _OutIter> _OutIter num_put<_CharT, _OutIter>:: do_put(iter_type __s, ios_base& __io, char_type __fill, unsigned long __v) const { return __output_integer(__s, __io, __fill, false, __v); } #ifdef _GLIBCPP_USE_LONG_LONG template <typename _CharT, typename _OutIter> _OutIter num_put<_CharT, _OutIter>:: do_put(iter_type __s, ios_base& __b, char_type __fill, long long __v) const { unsigned long long __uv = __v; bool __neg = false; if (__v < 0) { __neg = true; __uv = -__uv; } return __output_integer(__s, __b, __fill, __neg, __uv); } template <typename _CharT, typename _OutIter> _OutIter num_put<_CharT, _OutIter>:: do_put(iter_type __s, ios_base& __io, char_type __fill, unsigned long long __v) const { return __output_integer(__s, __io, __fill, false, __v); } #endif // Generic helper function template<typename _CharT, typename _Traits, typename _OutIter> _OutIter __output_float(_OutIter __s, ios_base& __io, _CharT __fill, const char* __sptr, size_t __slen) { // XXX Not currently done: non streambuf_iterator return __s; } // Partial specialization for ostreambuf_iterator. template<typename _CharT, typename _Traits> ostreambuf_iterator<_CharT, _Traits> __output_float(ostreambuf_iterator<_CharT, _Traits> __s, ios_base& __io, _CharT __fill, const char* __sptr, size_t __slen) { size_t __padding = __io.width() > streamsize(__slen) ? __io.width() -__slen : 0; locale __loc = __io.getloc(); ctype<_CharT> const& __ct = use_facet<ctype<_CharT> >(__loc); ios_base::fmtflags __adjfield = __io.flags() & ios_base::adjustfield; const char* const __eptr = __sptr + __slen; // [22.2.2.2.2.19] Table 61 if (__adjfield == ios_base::internal) { // [22.2.2.2.2.14]; widen() if (__sptr < __eptr && (*__sptr == '+' || *__sptr == '-')) { __s = __ct.widen(*__sptr); ++__s; ++__sptr; } __s = __pad(__s, __fill, __padding); __padding = 0; } else if (__adjfield != ios_base::left) { __s = __pad(__s, __fill, __padding); __padding = 0; } // the "C" locale decimal character char __decimal_point = *(localeconv()->decimal_point); const _Format_cache<_CharT>* __fmt = _Format_cache<_CharT>::_S_get(__io); for (; __sptr != __eptr; ++__s, ++__sptr) { // [22.2.2.2.2.17]; decimal point conversion if (*__sptr == __decimal_point) __s = __fmt->_M_decimal_point; // [22.2.2.2.2.14]; widen() else __s = __ct.widen(*__sptr); } // [22.2.2.2.2.19] Table 61 if (__padding) __pad(__s, __fill, __padding); __io.width(0); return __s; } bool __build_float_format(ios_base& __io, char* __fptr, char __modifier, streamsize __prec); template <typename _CharT, typename _OutIter> _OutIter num_put<_CharT, _OutIter>:: do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const { const streamsize __max_prec = numeric_limits<double>::digits10 + 3; streamsize __prec = __io.precision(); // Protect against sprintf() buffer overflows. if (__prec > __max_prec) __prec = __max_prec; // The *2 provides for signs, exp, 'E', and pad. char __sbuf[__max_prec * 2]; size_t __slen; // Long enough for the max format spec. char __fbuf[16]; if (__build_float_format(__io, __fbuf, 0, __prec)) __slen = sprintf(__sbuf, __fbuf, __prec, __v); else __slen = sprintf(__sbuf, __fbuf, __v); // [22.2.2.2.2] Stages 2-4. return __output_float(__s, __io, __fill, __sbuf, __slen); } 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 { const streamsize __max_prec = numeric_limits<long double>::digits10 + 3; streamsize __prec = __io.precision(); // Protect against sprintf() buffer overflows. if (__prec > __max_prec) __prec = __max_prec; // The *2 provides for signs, exp, 'E', and pad. char __sbuf[__max_prec * 2]; size_t __slen; // Long enough for the max format spec. char __fbuf[16]; // 'L' as per [22.2.2.2.2] Table 59 if (__build_float_format(__io, __fbuf, 'L', __prec)) __slen = sprintf(__sbuf, __fbuf, __prec, __v); else __slen = sprintf(__sbuf, __fbuf, __v); // [22.2.2.2.2] Stages 2-4 return __output_float(__s, __io, __fill, __sbuf, __slen); } 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 { typedef ios_base::fmtflags fmtflags; fmtflags __fmt = __io.flags(); fmtflags __fmtmask = ~(ios_base::showpos | ios_base::basefield | ios_base::uppercase | ios_base::internal); __io.flags(__fmt & __fmtmask | (ios_base::hex | ios_base::showbase)); try { _OutIter __s2 = __output_integer(__s, __io, __fill, false, reinterpret_cast<unsigned long>(__v)); __io.flags(__fmt); return __s2; } catch (...) { __io.flags(__fmt); __throw_exception_again; } } // Support for time_get: // Note that these partial specializations could, and maybe should, // be changed to full specializations (by eliminating the _Dummy // argument) and moved to a .cc file. template<typename _CharT, typename _Dummy = int> struct _Weekdaynames; template<typename _Dummy> struct _Weekdaynames<char, _Dummy> { static const char* const _S_names[14]; }; template<typename _Dummy> const char* const _Weekdaynames<char, _Dummy>::_S_names[14] = { "Sun", "Sunday", "Mon", "Monday", "Tue", "Tuesday", "Wed", "Wednesday", "Thu", "Thursday", "Fri", "Friday", "Sat", "Saturday" }; #ifdef _GLIBCPP_USE_WCHAR_T template<typename _Dummy> struct _Weekdaynames<wchar_t, _Dummy> { static const wchar_t* const _S_names[14]; }; template<typename _Dummy> const wchar_t* const _Weekdaynames<wchar_t, _Dummy>::_S_names[14] = { L"Sun", L"Sunday", L"Mon", L"Monday", L"Tue", L"Tuesday", L"Wed", L"Wednesday", L"Thu", L"Thursday", L"Fri", L"Friday", L"Sat", L"Saturday" }; #endif template<typename _CharT, typename _Dummy = int> struct _Monthnames; template<typename _Dummy> struct _Monthnames<char,_Dummy> { static const char* const _S_names[24]; }; template<typename _Dummy> const char* const _Monthnames<char,_Dummy>::_S_names[24] = { "Jan", "January", "Feb", "February", "Mar", "March", "Apr", "April", "May", "May", "Jun", "June", "Jul", "July", "Aug", "August", "Sep", "September", "Oct", "October", "Nov", "November", "Dec", "December" }; #ifdef _GLIBCPP_USE_WCHAR_T template<typename _Dummy> struct _Monthnames<wchar_t, _Dummy> { static const wchar_t* const _S_names[24]; }; template<typename _Dummy> const wchar_t* const _Monthnames<wchar_t,_Dummy>::_S_names[24] = { L"Jan", L"January", L"Feb", L"February", L"Mar", L"March", L"Apr", L"April", L"May", L"May", L"Jun", L"June", L"Jul", L"July", L"Aug", L"August", L"Sep", L"September", L"Oct", L"October", L"Nov", L"November", L"Dec", L"December" }; #endif template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_weekday(iter_type __s, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __t) const { if (!_M_daynames) { _M_daynames = new basic_string<_CharT>[14]; for (int __i = 0; __i < 14; ++__i) _M_daynames[__i] = _Weekdaynames<_CharT>::_S_names[__i]; } bool __at_eof = false; int __remain = 0; int __matches[14]; iter_type __out = __match_parallel(__s, __end, 14, _M_daynames, __matches, __remain, __at_eof); __err = ios_base::iostate(0); if (__at_eof) __err |= __io.eofbit; if (__remain == 1 || __remain == 2 && (__matches[0]>>1) == (__matches[1]>>1)) __t->tm_wday = (__matches[0]>>1); else __err |= __io.failbit; return __out; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_monthname(iter_type __s, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __t) const { if (!_M_monthnames) { _M_monthnames = new basic_string<_CharT>[24]; for (int __i = 0; __i < 24; ++__i) _M_monthnames[__i] = _Monthnames<_CharT>::_S_names[__i]; } bool __at_eof = false; int __remain = 0; int __matches[24]; iter_type __out = __match_parallel( __s, __end, 24, _M_monthnames, __matches, __remain, __at_eof); __err = ios_base::iostate(0); if (__at_eof) __err |= __io.eofbit; if (__remain == 1 || __remain == 2 && (__matches[0]>>1) == (__matches[1]>>1)) __t->tm_mon = (__matches[0]>>1); else __err |= __io.failbit; return __out; } } // std:: #endif /* _CPP_BITS_LOCFACETS_TCC */ // Local Variables: // mode:c++ // End: