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locale_facets_nonio.tcc
// Locale support -*- C++ -*- // Copyright (C) 2007-2021 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 bits/locale_facets_nonio.tcc * This is an internal header file, included by other library headers. * Do not attempt to use it directly. @headername{locale} */ #ifndef _LOCALE_FACETS_NONIO_TCC #define _LOCALE_FACETS_NONIO_TCC 1 #pragma GCC system_header namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION template<typename _CharT, bool _Intl> struct __use_cache<__moneypunct_cache<_CharT, _Intl> > { const __moneypunct_cache<_CharT, _Intl>* operator() (const locale& __loc) const { const size_t __i = moneypunct<_CharT, _Intl>::id._M_id(); const locale::facet** __caches = __loc._M_impl->_M_caches; if (!__caches[__i]) { __moneypunct_cache<_CharT, _Intl>* __tmp = 0; __try { __tmp = new __moneypunct_cache<_CharT, _Intl>; __tmp->_M_cache(__loc); } __catch(...) { delete __tmp; __throw_exception_again; } __loc._M_impl->_M_install_cache(__tmp, __i); } return static_cast< const __moneypunct_cache<_CharT, _Intl>*>(__caches[__i]); } }; template<typename _CharT, bool _Intl> void __moneypunct_cache<_CharT, _Intl>::_M_cache(const locale& __loc) { const moneypunct<_CharT, _Intl>& __mp = use_facet<moneypunct<_CharT, _Intl> >(__loc); _M_decimal_point = __mp.decimal_point(); _M_thousands_sep = __mp.thousands_sep(); _M_frac_digits = __mp.frac_digits(); char* __grouping = 0; _CharT* __curr_symbol = 0; _CharT* __positive_sign = 0; _CharT* __negative_sign = 0; size_t __sz; __try { const string& __g = __mp.grouping(); __sz = _M_grouping_size = __g.size(); __grouping = new char[__sz]; __g.copy(__grouping, __sz); _M_use_grouping = (_M_grouping_size && static_cast<signed char>(__grouping[0]) > 0 && (__grouping[0] != __gnu_cxx::__numeric_traits<char>::__max)); const basic_string<_CharT>& __cs = __mp.curr_symbol(); __sz = _M_curr_symbol_size = __cs.size(); __curr_symbol = new _CharT[__sz]; __cs.copy(__curr_symbol, __sz); const basic_string<_CharT>& __ps = __mp.positive_sign(); __sz = _M_positive_sign_size = __ps.size(); __positive_sign = new _CharT[__sz]; __ps.copy(__positive_sign, __sz); const basic_string<_CharT>& __ns = __mp.negative_sign(); __sz = _M_negative_sign_size = __ns.size(); __negative_sign = new _CharT[__sz]; __ns.copy(__negative_sign, __sz); _M_pos_format = __mp.pos_format(); _M_neg_format = __mp.neg_format(); const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc); __ct.widen(money_base::_S_atoms, money_base::_S_atoms + money_base::_S_end, _M_atoms); _M_grouping = __grouping; _M_curr_symbol = __curr_symbol; _M_positive_sign = __positive_sign; _M_negative_sign = __negative_sign; _M_allocated = true; } __catch(...) { delete [] __grouping; delete [] __curr_symbol; delete [] __positive_sign; delete [] __negative_sign; __throw_exception_again; } } _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 template<typename _CharT, typename _InIter> template<bool _Intl> _InIter money_get<_CharT, _InIter>:: _M_extract(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, string& __units) const { typedef char_traits<_CharT> __traits_type; typedef typename string_type::size_type size_type; typedef money_base::part part; typedef __moneypunct_cache<_CharT, _Intl> __cache_type; const locale& __loc = __io._M_getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); __use_cache<__cache_type> __uc; const __cache_type* __lc = __uc(__loc); const char_type* __lit = __lc->_M_atoms; // Deduced sign. bool __negative = false; // Sign size. size_type __sign_size = 0; // True if sign is mandatory. const bool __mandatory_sign = (__lc->_M_positive_sign_size && __lc->_M_negative_sign_size); // String of grouping info from thousands_sep plucked from __units. string __grouping_tmp; if (__lc->_M_use_grouping) __grouping_tmp.reserve(32); // Last position before the decimal point. int __last_pos = 0; // Separator positions, then, possibly, fractional digits. int __n = 0; // If input iterator is in a valid state. bool __testvalid = true; // Flag marking when a decimal point is found. bool __testdecfound = false; // The tentative returned string is stored here. string __res; __res.reserve(32); const char_type* __lit_zero = __lit + money_base::_S_zero; const money_base::pattern __p = __lc->_M_neg_format; for (int __i = 0; __i < 4 && __testvalid; ++__i) { const part __which = static_cast<part>(__p.field[__i]); switch (__which) { case money_base::symbol: // According to 22.2.6.1.2, p2, symbol is required // if (__io.flags() & ios_base::showbase), otherwise // is optional and consumed only if other characters // are needed to complete the format. if (__io.flags() & ios_base::showbase || __sign_size > 1 || __i == 0 || (__i == 1 && (__mandatory_sign || (static_cast<part>(__p.field[0]) == money_base::sign) || (static_cast<part>(__p.field[2]) == money_base::space))) || (__i == 2 && ((static_cast<part>(__p.field[3]) == money_base::value) || (__mandatory_sign && (static_cast<part>(__p.field[3]) == money_base::sign))))) { const size_type __len = __lc->_M_curr_symbol_size; size_type __j = 0; for (; __beg != __end && __j < __len && *__beg == __lc->_M_curr_symbol[__j]; ++__beg, (void)++__j); if (__j != __len && (__j || __io.flags() & ios_base::showbase)) __testvalid = false; } break; case money_base::sign: // Sign might not exist, or be more than one character long. if (__lc->_M_positive_sign_size && __beg != __end && *__beg == __lc->_M_positive_sign[0]) { __sign_size = __lc->_M_positive_sign_size; ++__beg; } else if (__lc->_M_negative_sign_size && __beg != __end && *__beg == __lc->_M_negative_sign[0]) { __negative = true; __sign_size = __lc->_M_negative_sign_size; ++__beg; } else if (__lc->_M_positive_sign_size && !__lc->_M_negative_sign_size) // "... if no sign is detected, the result is given the sign // that corresponds to the source of the empty string" __negative = true; else if (__mandatory_sign) __testvalid = false; break; case money_base::value: // Extract digits, remove and stash away the // grouping of found thousands separators. for (; __beg != __end; ++__beg) { const char_type __c = *__beg; const char_type* __q = __traits_type::find(__lit_zero, 10, __c); if (__q != 0) { __res += money_base::_S_atoms[__q - __lit]; ++__n; } else if (__c == __lc->_M_decimal_point && !__testdecfound) { if (__lc->_M_frac_digits <= 0) break; __last_pos = __n; __n = 0; __testdecfound = true; } else if (__lc->_M_use_grouping && __c == __lc->_M_thousands_sep && !__testdecfound) { if (__n) { // Mark position for later analysis. __grouping_tmp += static_cast<char>(__n); __n = 0; } else { __testvalid = false; break; } } else break; } if (__res.empty()) __testvalid = false; break; case money_base::space: // At least one space is required. if (__beg != __end && __ctype.is(ctype_base::space, *__beg)) ++__beg; else __testvalid = false; // fallthrough case money_base::none: // Only if not at the end of the pattern. if (__i != 3) for (; __beg != __end && __ctype.is(ctype_base::space, *__beg); ++__beg); break; } } // Need to get the rest of the sign characters, if they exist. if (__sign_size > 1 && __testvalid) { const char_type* __sign = __negative ? __lc->_M_negative_sign : __lc->_M_positive_sign; size_type __i = 1; for (; __beg != __end && __i < __sign_size && *__beg == __sign[__i]; ++__beg, (void)++__i); if (__i != __sign_size) __testvalid = false; } if (__testvalid) { // Strip leading zeros. if (__res.size() > 1) { const size_type __first = __res.find_first_not_of('0'); const bool __only_zeros = __first == string::npos; if (__first) __res.erase(0, __only_zeros ? __res.size() - 1 : __first); } // 22.2.6.1.2, p4 if (__negative && __res[0] != '0') __res.insert(__res.begin(), '-'); // Test for grouping fidelity. if (__grouping_tmp.size()) { // Add the ending grouping. __grouping_tmp += static_cast<char>(__testdecfound ? __last_pos : __n); if (!std::__verify_grouping(__lc->_M_grouping, __lc->_M_grouping_size, __grouping_tmp)) __err |= ios_base::failbit; } // Iff not enough digits were supplied after the decimal-point. if (__testdecfound && __n != __lc->_M_frac_digits) __testvalid = false; } // Iff valid sequence is not recognized. if (!__testvalid) __err |= ios_base::failbit; else __units.swap(__res); // Iff no more characters are available. if (__beg == __end) __err |= ios_base::eofbit; return __beg; } #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \ && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__) template<typename _CharT, typename _InIter> _InIter money_get<_CharT, _InIter>:: __do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, ios_base::iostate& __err, double& __units) const { string __str; __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str) : _M_extract<false>(__beg, __end, __io, __err, __str); std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale()); return __beg; } #endif template<typename _CharT, typename _InIter> _InIter money_get<_CharT, _InIter>:: do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, ios_base::iostate& __err, long double& __units) const { string __str; __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str) : _M_extract<false>(__beg, __end, __io, __err, __str); std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale()); return __beg; } template<typename _CharT, typename _InIter> _InIter money_get<_CharT, _InIter>:: do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, ios_base::iostate& __err, string_type& __digits) const { typedef typename string::size_type size_type; const locale& __loc = __io._M_getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); string __str; __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str) : _M_extract<false>(__beg, __end, __io, __err, __str); const size_type __len = __str.size(); if (__len) { __digits.resize(__len); __ctype.widen(__str.data(), __str.data() + __len, &__digits[0]); } return __beg; } #if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \ && defined __LONG_DOUBLE_IEEE128__ template<typename _CharT, typename _InIter> _InIter money_get<_CharT, _InIter>:: __do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, ios_base::iostate& __err, __ibm128& __units) const { string __str; __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str) : _M_extract<false>(__beg, __end, __io, __err, __str); std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale()); return __beg; } #endif template<typename _CharT, typename _OutIter> template<bool _Intl> _OutIter money_put<_CharT, _OutIter>:: _M_insert(iter_type __s, ios_base& __io, char_type __fill, const string_type& __digits) const { typedef typename string_type::size_type size_type; typedef money_base::part part; typedef __moneypunct_cache<_CharT, _Intl> __cache_type; const locale& __loc = __io._M_getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); __use_cache<__cache_type> __uc; const __cache_type* __lc = __uc(__loc); const char_type* __lit = __lc->_M_atoms; // Determine if negative or positive formats are to be used, and // discard leading negative_sign if it is present. const char_type* __beg = __digits.data(); money_base::pattern __p; const char_type* __sign; size_type __sign_size; if (!(*__beg == __lit[money_base::_S_minus])) { __p = __lc->_M_pos_format; __sign = __lc->_M_positive_sign; __sign_size = __lc->_M_positive_sign_size; } else { __p = __lc->_M_neg_format; __sign = __lc->_M_negative_sign; __sign_size = __lc->_M_negative_sign_size; if (__digits.size()) ++__beg; } // Look for valid numbers in the ctype facet within input digits. size_type __len = __ctype.scan_not(ctype_base::digit, __beg, __beg + __digits.size()) - __beg; if (__len) { // Assume valid input, and attempt to format. // Break down input numbers into base components, as follows: // final_value = grouped units + (decimal point) + (digits) string_type __value; __value.reserve(2 * __len); // Add thousands separators to non-decimal digits, per // grouping rules. long __paddec = __len - __lc->_M_frac_digits; if (__paddec > 0) { if (__lc->_M_frac_digits < 0) __paddec = __len; if (__lc->_M_grouping_size) { __value.assign(2 * __paddec, char_type()); _CharT* __vend = std::__add_grouping(&__value[0], __lc->_M_thousands_sep, __lc->_M_grouping, __lc->_M_grouping_size, __beg, __beg + __paddec); __value.erase(__vend - &__value[0]); } else __value.assign(__beg, __paddec); } // Deal with decimal point, decimal digits. if (__lc->_M_frac_digits > 0) { __value += __lc->_M_decimal_point; if (__paddec >= 0) __value.append(__beg + __paddec, __lc->_M_frac_digits); else { // Have to pad zeros in the decimal position. __value.append(-__paddec, __lit[money_base::_S_zero]); __value.append(__beg, __len); } } // Calculate length of resulting string. const ios_base::fmtflags __f = __io.flags() & ios_base::adjustfield; __len = __value.size() + __sign_size; __len += ((__io.flags() & ios_base::showbase) ? __lc->_M_curr_symbol_size : 0); string_type __res; __res.reserve(2 * __len); const size_type __width = static_cast<size_type>(__io.width()); const bool __testipad = (__f == ios_base::internal && __len < __width); // Fit formatted digits into the required pattern. for (int __i = 0; __i < 4; ++__i) { const part __which = static_cast<part>(__p.field[__i]); switch (__which) { case money_base::symbol: if (__io.flags() & ios_base::showbase) __res.append(__lc->_M_curr_symbol, __lc->_M_curr_symbol_size); break; case money_base::sign: // Sign might not exist, or be more than one // character long. In that case, add in the rest // below. if (__sign_size) __res += __sign[0]; break; case money_base::value: __res += __value; break; case money_base::space: // At least one space is required, but if internal // formatting is required, an arbitrary number of // fill spaces will be necessary. if (__testipad) __res.append(__width - __len, __fill); else __res += __fill; break; case money_base::none: if (__testipad) __res.append(__width - __len, __fill); break; } } // Special case of multi-part sign parts. if (__sign_size > 1) __res.append(__sign + 1, __sign_size - 1); // Pad, if still necessary. __len = __res.size(); if (__width > __len) { if (__f == ios_base::left) // After. __res.append(__width - __len, __fill); else // Before. __res.insert(0, __width - __len, __fill); __len = __width; } // Write resulting, fully-formatted string to output iterator. __s = std::__write(__s, __res.data(), __len); } __io.width(0); return __s; } #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \ && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__) template<typename _CharT, typename _OutIter> _OutIter money_put<_CharT, _OutIter>:: __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, double __units) const { return this->do_put(__s, __intl, __io, __fill, (long double) __units); } #endif template<typename _CharT, typename _OutIter> _OutIter money_put<_CharT, _OutIter>:: do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, long double __units) const { const locale __loc = __io.getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); #if _GLIBCXX_USE_C99_STDIO // First try a buffer perhaps big enough. int __cs_size = 64; char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); // _GLIBCXX_RESOLVE_LIB_DEFECTS // 328. Bad sprintf format modifier in money_put<>::do_put() int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, "%.*Lf", 0, __units); // 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, "%.*Lf", 0, __units); } #else // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'. const int __cs_size = __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 3; char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf", 0, __units); #endif string_type __digits(__len, char_type()); __ctype.widen(__cs, __cs + __len, &__digits[0]); return __intl ? _M_insert<true>(__s, __io, __fill, __digits) : _M_insert<false>(__s, __io, __fill, __digits); } template<typename _CharT, typename _OutIter> _OutIter money_put<_CharT, _OutIter>:: do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, const string_type& __digits) const { return __intl ? _M_insert<true>(__s, __io, __fill, __digits) : _M_insert<false>(__s, __io, __fill, __digits); } #if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \ && defined __LONG_DOUBLE_IEEE128__ template<typename _CharT, typename _OutIter> _OutIter money_put<_CharT, _OutIter>:: __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, __ibm128 __units) const { const locale __loc = __io.getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); #if _GLIBCXX_USE_C99_STDIO // First try a buffer perhaps big enough. int __cs_size = 64; char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); // _GLIBCXX_RESOLVE_LIB_DEFECTS // 328. Bad sprintf format modifier in money_put<>::do_put() int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size, "%.*Lf", 0, __units); // 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, "%.*Lf", 0, __units); } #else // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'. const int __cs_size = __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 3; char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf", 0, __units); #endif string_type __digits(__len, char_type()); __ctype.widen(__cs, __cs + __len, &__digits[0]); return __intl ? _M_insert<true>(__s, __io, __fill, __digits) : _M_insert<false>(__s, __io, __fill, __digits); } #endif _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 // NB: Not especially useful. Without an ios_base object or some // kind of locale reference, we are left clawing at the air where // the side of the mountain used to be... template<typename _CharT, typename _InIter> time_base::dateorder time_get<_CharT, _InIter>::do_date_order() const { return time_base::no_order; } // Expand a strftime format string and parse it. E.g., do_get_date() may // pass %m/%d/%Y => extracted characters. template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: _M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm, const _CharT* __format) const { const locale& __loc = __io._M_getloc(); const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); const size_t __len = char_traits<_CharT>::length(__format); ios_base::iostate __tmperr = ios_base::goodbit; size_t __i = 0; for (; __beg != __end && __i < __len && !__tmperr; ++__i) { if (__ctype.narrow(__format[__i], 0) == '%') { // Verify valid formatting code, attempt to extract. char __c = __ctype.narrow(__format[++__i], 0); int __mem = 0; if (__c == 'E' || __c == 'O') __c = __ctype.narrow(__format[++__i], 0); switch (__c) { const char* __cs; _CharT __wcs[10]; case 'a': // Abbreviated weekday name [tm_wday] const char_type* __days1[7]; __tp._M_days_abbreviated(__days1); __beg = _M_extract_name(__beg, __end, __mem, __days1, 7, __io, __tmperr); if (!__tmperr) __tm->tm_wday = __mem; break; case 'A': // Weekday name [tm_wday]. const char_type* __days2[7]; __tp._M_days(__days2); __beg = _M_extract_name(__beg, __end, __mem, __days2, 7, __io, __tmperr); if (!__tmperr) __tm->tm_wday = __mem; break; case 'h': case 'b': // Abbreviated month name [tm_mon] const char_type* __months1[12]; __tp._M_months_abbreviated(__months1); __beg = _M_extract_name(__beg, __end, __mem, __months1, 12, __io, __tmperr); if (!__tmperr) __tm->tm_mon = __mem; break; case 'B': // Month name [tm_mon]. const char_type* __months2[12]; __tp._M_months(__months2); __beg = _M_extract_name(__beg, __end, __mem, __months2, 12, __io, __tmperr); if (!__tmperr) __tm->tm_mon = __mem; break; case 'c': // Default time and date representation. const char_type* __dt[2]; __tp._M_date_time_formats(__dt); __beg = _M_extract_via_format(__beg, __end, __io, __tmperr, __tm, __dt[0]); break; case 'd': // Day [01, 31]. [tm_mday] __beg = _M_extract_num(__beg, __end, __mem, 1, 31, 2, __io, __tmperr); if (!__tmperr) __tm->tm_mday = __mem; break; case 'e': // Day [1, 31], with single digits preceded by // space. [tm_mday] if (__ctype.is(ctype_base::space, *__beg)) __beg = _M_extract_num(++__beg, __end, __mem, 1, 9, 1, __io, __tmperr); else __beg = _M_extract_num(__beg, __end, __mem, 10, 31, 2, __io, __tmperr); if (!__tmperr) __tm->tm_mday = __mem; break; case 'D': // Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year] __cs = "%m/%d/%y"; __ctype.widen(__cs, __cs + 9, __wcs); __beg = _M_extract_via_format(__beg, __end, __io, __tmperr, __tm, __wcs); break; case 'H': // Hour [00, 23]. [tm_hour] __beg = _M_extract_num(__beg, __end, __mem, 0, 23, 2, __io, __tmperr); if (!__tmperr) __tm->tm_hour = __mem; break; case 'I': // Hour [01, 12]. [tm_hour] __beg = _M_extract_num(__beg, __end, __mem, 1, 12, 2, __io, __tmperr); if (!__tmperr) __tm->tm_hour = __mem; break; case 'm': // Month [01, 12]. [tm_mon] __beg = _M_extract_num(__beg, __end, __mem, 1, 12, 2, __io, __tmperr); if (!__tmperr) __tm->tm_mon = __mem - 1; break; case 'M': // Minute [00, 59]. [tm_min] __beg = _M_extract_num(__beg, __end, __mem, 0, 59, 2, __io, __tmperr); if (!__tmperr) __tm->tm_min = __mem; break; case 'n': if (__ctype.narrow(*__beg, 0) == '\n') ++__beg; else __tmperr |= ios_base::failbit; break; case 'R': // Equivalent to (%H:%M). __cs = "%H:%M"; __ctype.widen(__cs, __cs + 6, __wcs); __beg = _M_extract_via_format(__beg, __end, __io, __tmperr, __tm, __wcs); break; case 'S': // Seconds. [tm_sec] // [00, 60] in C99 (one leap-second), [00, 61] in C89. #if _GLIBCXX_USE_C99 __beg = _M_extract_num(__beg, __end, __mem, 0, 60, 2, #else __beg = _M_extract_num(__beg, __end, __mem, 0, 61, 2, #endif __io, __tmperr); if (!__tmperr) __tm->tm_sec = __mem; break; case 't': if (__ctype.narrow(*__beg, 0) == '\t') ++__beg; else __tmperr |= ios_base::failbit; break; case 'T': // Equivalent to (%H:%M:%S). __cs = "%H:%M:%S"; __ctype.widen(__cs, __cs + 9, __wcs); __beg = _M_extract_via_format(__beg, __end, __io, __tmperr, __tm, __wcs); break; case 'x': // Locale's date. const char_type* __dates[2]; __tp._M_date_formats(__dates); __beg = _M_extract_via_format(__beg, __end, __io, __tmperr, __tm, __dates[0]); break; case 'X': // Locale's time. const char_type* __times[2]; __tp._M_time_formats(__times); __beg = _M_extract_via_format(__beg, __end, __io, __tmperr, __tm, __times[0]); break; case 'y': case 'C': // C99 // Two digit year. case 'Y': // Year [1900). // NB: We parse either two digits, implicitly years since // 1900, or 4 digits, full year. In both cases we can // reconstruct [tm_year]. See also libstdc++/26701. __beg = _M_extract_num(__beg, __end, __mem, 0, 9999, 4, __io, __tmperr); if (!__tmperr) __tm->tm_year = __mem < 0 ? __mem + 100 : __mem - 1900; break; case 'Z': // Timezone info. if (__ctype.is(ctype_base::upper, *__beg)) { int __tmp; __beg = _M_extract_name(__beg, __end, __tmp, __timepunct_cache<_CharT>::_S_timezones, 14, __io, __tmperr); // GMT requires special effort. if (__beg != __end && !__tmperr && __tmp == 0 && (*__beg == __ctype.widen('-') || *__beg == __ctype.widen('+'))) { __beg = _M_extract_num(__beg, __end, __tmp, 0, 23, 2, __io, __tmperr); __beg = _M_extract_num(__beg, __end, __tmp, 0, 59, 2, __io, __tmperr); } } else __tmperr |= ios_base::failbit; break; default: // Not recognized. __tmperr |= ios_base::failbit; } } else { // Verify format and input match, extract and discard. if (__format[__i] == *__beg) ++__beg; else __tmperr |= ios_base::failbit; } } if (__tmperr || __i != __len) __err |= ios_base::failbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: _M_extract_num(iter_type __beg, iter_type __end, int& __member, int __min, int __max, size_t __len, ios_base& __io, ios_base::iostate& __err) const { const locale& __loc = __io._M_getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); // As-is works for __len = 1, 2, 4, the values actually used. int __mult = __len == 2 ? 10 : (__len == 4 ? 1000 : 1); ++__min; size_t __i = 0; int __value = 0; for (; __beg != __end && __i < __len; ++__beg, (void)++__i) { const char __c = __ctype.narrow(*__beg, '*'); if (__c >= '0' && __c <= '9') { __value = __value * 10 + (__c - '0'); const int __valuec = __value * __mult; if (__valuec > __max || __valuec + __mult < __min) break; __mult /= 10; } else break; } if (__i == __len) __member = __value; // Special encoding for do_get_year, 'y', and 'Y' above. else if (__len == 4 && __i == 2) __member = __value - 100; else __err |= ios_base::failbit; return __beg; } // Assumptions: // All elements in __names are unique. template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: _M_extract_name(iter_type __beg, iter_type __end, int& __member, const _CharT** __names, size_t __indexlen, ios_base& __io, ios_base::iostate& __err) const { typedef char_traits<_CharT> __traits_type; const locale& __loc = __io._M_getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int) * __indexlen)); size_t __nmatches = 0; size_t __pos = 0; bool __testvalid = true; const char_type* __name; // Look for initial matches. // NB: Some of the locale data is in the form of all lowercase // names, and some is in the form of initially-capitalized // names. Look for both. if (__beg != __end) { const char_type __c = *__beg; for (size_t __i1 = 0; __i1 < __indexlen; ++__i1) if (__c == __names[__i1][0] || __c == __ctype.toupper(__names[__i1][0])) __matches[__nmatches++] = __i1; } while (__nmatches > 1) { // Find smallest matching string. size_t __minlen = __traits_type::length(__names[__matches[0]]); for (size_t __i2 = 1; __i2 < __nmatches; ++__i2) __minlen = std::min(__minlen, __traits_type::length(__names[__matches[__i2]])); ++__beg; ++__pos; if (__pos < __minlen && __beg != __end) for (size_t __i3 = 0; __i3 < __nmatches;) { __name = __names[__matches[__i3]]; if (!(__name[__pos] == *__beg)) __matches[__i3] = __matches[--__nmatches]; else ++__i3; } else break; } if (__nmatches == 1) { // Make sure found name is completely extracted. ++__beg; ++__pos; __name = __names[__matches[0]]; const size_t __len = __traits_type::length(__name); while (__pos < __len && __beg != __end && __name[__pos] == *__beg) ++__beg, (void)++__pos; if (__len == __pos) __member = __matches[0]; else __testvalid = false; } else __testvalid = false; if (!__testvalid) __err |= ios_base::failbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: _M_extract_wday_or_month(iter_type __beg, iter_type __end, int& __member, const _CharT** __names, size_t __indexlen, ios_base& __io, ios_base::iostate& __err) const { typedef char_traits<_CharT> __traits_type; const locale& __loc = __io._M_getloc(); const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); int* __matches = static_cast<int*>(__builtin_alloca(2 * sizeof(int) * __indexlen)); size_t __nmatches = 0; size_t* __matches_lengths = 0; size_t __pos = 0; if (__beg != __end) { const char_type __c = *__beg; for (size_t __i = 0; __i < 2 * __indexlen; ++__i) if (__c == __names[__i][0] || __c == __ctype.toupper(__names[__i][0])) __matches[__nmatches++] = __i; } if (__nmatches) { ++__beg; ++__pos; __matches_lengths = static_cast<size_t*>(__builtin_alloca(sizeof(size_t) * __nmatches)); for (size_t __i = 0; __i < __nmatches; ++__i) __matches_lengths[__i] = __traits_type::length(__names[__matches[__i]]); } for (; __beg != __end; ++__beg, (void)++__pos) { size_t __nskipped = 0; const char_type __c = *__beg; for (size_t __i = 0; __i < __nmatches;) { const char_type* __name = __names[__matches[__i]]; if (__pos >= __matches_lengths[__i]) ++__nskipped, ++__i; else if (!(__name[__pos] == __c)) { --__nmatches; __matches[__i] = __matches[__nmatches]; __matches_lengths[__i] = __matches_lengths[__nmatches]; } else ++__i; } if (__nskipped == __nmatches) break; } if ((__nmatches == 1 && __matches_lengths[0] == __pos) || (__nmatches == 2 && (__matches_lengths[0] == __pos || __matches_lengths[1] == __pos))) __member = (__matches[0] >= (int)__indexlen ? __matches[0] - (int)__indexlen : __matches[0]); else __err |= ios_base::failbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_time(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm) const { const locale& __loc = __io._M_getloc(); const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc); const char_type* __times[2]; __tp._M_time_formats(__times); __beg = _M_extract_via_format(__beg, __end, __io, __err, __tm, __times[0]); if (__beg == __end) __err |= ios_base::eofbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_date(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm) const { const locale& __loc = __io._M_getloc(); const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc); const char_type* __dates[2]; __tp._M_date_formats(__dates); __beg = _M_extract_via_format(__beg, __end, __io, __err, __tm, __dates[0]); if (__beg == __end) __err |= ios_base::eofbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_weekday(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm) const { const locale& __loc = __io._M_getloc(); const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc); const char_type* __days[14]; __tp._M_days_abbreviated(__days); __tp._M_days(__days + 7); int __tmpwday; ios_base::iostate __tmperr = ios_base::goodbit; __beg = _M_extract_wday_or_month(__beg, __end, __tmpwday, __days, 7, __io, __tmperr); if (!__tmperr) __tm->tm_wday = __tmpwday; else __err |= ios_base::failbit; if (__beg == __end) __err |= ios_base::eofbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_monthname(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm) const { const locale& __loc = __io._M_getloc(); const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc); const char_type* __months[24]; __tp._M_months_abbreviated(__months); __tp._M_months(__months + 12); int __tmpmon; ios_base::iostate __tmperr = ios_base::goodbit; __beg = _M_extract_wday_or_month(__beg, __end, __tmpmon, __months, 12, __io, __tmperr); if (!__tmperr) __tm->tm_mon = __tmpmon; else __err |= ios_base::failbit; if (__beg == __end) __err |= ios_base::eofbit; return __beg; } template<typename _CharT, typename _InIter> _InIter time_get<_CharT, _InIter>:: do_get_year(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm) const { int __tmpyear; ios_base::iostate __tmperr = ios_base::goodbit; __beg = _M_extract_num(__beg, __end, __tmpyear, 0, 9999, 4, __io, __tmperr); if (!__tmperr) __tm->tm_year = __tmpyear < 0 ? __tmpyear + 100 : __tmpyear - 1900; else __err |= ios_base::failbit; if (__beg == __end) __err |= ios_base::eofbit; return __beg; } #if __cplusplus >= 201103L template<typename _CharT, typename _InIter> inline _InIter time_get<_CharT, _InIter>:: get(iter_type __s, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm, const char_type* __fmt, const char_type* __fmtend) const { const locale& __loc = __io._M_getloc(); ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); __err = ios_base::goodbit; while (__fmt != __fmtend && __err == ios_base::goodbit) { if (__s == __end) { __err = ios_base::eofbit | ios_base::failbit; break; } else if (__ctype.narrow(*__fmt, 0) == '%') { char __format; char __mod = 0; if (++__fmt == __fmtend) { __err = ios_base::failbit; break; } const char __c = __ctype.narrow(*__fmt, 0); if (__c != 'E' && __c != 'O') __format = __c; else if (++__fmt != __fmtend) { __mod = __c; __format = __ctype.narrow(*__fmt, 0); } else { __err = ios_base::failbit; break; } __s = this->do_get(__s, __end, __io, __err, __tm, __format, __mod); ++__fmt; } else if (__ctype.is(ctype_base::space, *__fmt)) { ++__fmt; while (__fmt != __fmtend && __ctype.is(ctype_base::space, *__fmt)) ++__fmt; while (__s != __end && __ctype.is(ctype_base::space, *__s)) ++__s; } // TODO real case-insensitive comparison else if (__ctype.tolower(*__s) == __ctype.tolower(*__fmt) || __ctype.toupper(*__s) == __ctype.toupper(*__fmt)) { ++__s; ++__fmt; } else { __err = ios_base::failbit; break; } } return __s; } template<typename _CharT, typename _InIter> inline _InIter time_get<_CharT, _InIter>:: do_get(iter_type __beg, iter_type __end, ios_base& __io, ios_base::iostate& __err, tm* __tm, char __format, char __mod) const { const locale& __loc = __io._M_getloc(); ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); __err = ios_base::goodbit; char_type __fmt[4]; __fmt[0] = __ctype.widen('%'); if (!__mod) { __fmt[1] = __format; __fmt[2] = char_type(); } else { __fmt[1] = __mod; __fmt[2] = __format; __fmt[3] = char_type(); } __beg = _M_extract_via_format(__beg, __end, __io, __err, __tm, __fmt); if (__beg == __end) __err |= ios_base::eofbit; return __beg; } #endif // __cplusplus >= 201103L template<typename _CharT, typename _OutIter> _OutIter time_put<_CharT, _OutIter>:: put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm, const _CharT* __beg, const _CharT* __end) const { const locale& __loc = __io._M_getloc(); ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); for (; __beg != __end; ++__beg) if (__ctype.narrow(*__beg, 0) != '%') { *__s = *__beg; ++__s; } else if (++__beg != __end) { char __format; char __mod = 0; const char __c = __ctype.narrow(*__beg, 0); if (__c != 'E' && __c != 'O') __format = __c; else if (++__beg != __end) { __mod = __c; __format = __ctype.narrow(*__beg, 0); } else break; __s = this->do_put(__s, __io, __fill, __tm, __format, __mod); } else break; return __s; } template<typename _CharT, typename _OutIter> _OutIter time_put<_CharT, _OutIter>:: do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm, char __format, char __mod) const { const locale& __loc = __io._M_getloc(); ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc); // NB: This size is arbitrary. Should this be a data member, // initialized at construction? const size_t __maxlen = 128; char_type __res[__maxlen]; // NB: In IEE 1003.1-200x, and perhaps other locale models, it // is possible that the format character will be longer than one // character. Possibilities include 'E' or 'O' followed by a // format character: if __mod is not the default argument, assume // it's a valid modifier. char_type __fmt[4]; __fmt[0] = __ctype.widen('%'); if (!__mod) { __fmt[1] = __format; __fmt[2] = char_type(); } else { __fmt[1] = __mod; __fmt[2] = __format; __fmt[3] = char_type(); } __tp._M_put(__res, __maxlen, __fmt, __tm); // Write resulting, fully-formatted string to output iterator. return std::__write(__s, __res, char_traits<char_type>::length(__res)); } // Inhibit implicit instantiations for required instantiations, // which are defined via explicit instantiations elsewhere. #if _GLIBCXX_EXTERN_TEMPLATE extern template class moneypunct<char, false>; extern template class moneypunct<char, true>; extern template class moneypunct_byname<char, false>; extern template class moneypunct_byname<char, true>; extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_get<char>; extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_put<char>; extern template class __timepunct<char>; extern template class time_put<char>; extern template class time_put_byname<char>; extern template class time_get<char>; extern template class time_get_byname<char>; extern template class messages<char>; extern template class messages_byname<char>; extern template const moneypunct<char, true>& use_facet<moneypunct<char, true> >(const locale&); extern template const moneypunct<char, false>& use_facet<moneypunct<char, false> >(const locale&); extern template const money_put<char>& use_facet<money_put<char> >(const locale&); extern template const money_get<char>& use_facet<money_get<char> >(const locale&); extern template const __timepunct<char>& use_facet<__timepunct<char> >(const locale&); extern template const time_put<char>& use_facet<time_put<char> >(const locale&); extern template const time_get<char>& use_facet<time_get<char> >(const locale&); extern template const messages<char>& use_facet<messages<char> >(const locale&); extern template bool has_facet<moneypunct<char> >(const locale&); extern template bool has_facet<money_put<char> >(const locale&); extern template bool has_facet<money_get<char> >(const locale&); extern template bool has_facet<__timepunct<char> >(const locale&); extern template bool has_facet<time_put<char> >(const locale&); extern template bool has_facet<time_get<char> >(const locale&); extern template bool has_facet<messages<char> >(const locale&); #ifdef _GLIBCXX_USE_WCHAR_T extern template class moneypunct<wchar_t, false>; extern template class moneypunct<wchar_t, true>; extern template class moneypunct_byname<wchar_t, false>; extern template class moneypunct_byname<wchar_t, true>; extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_get<wchar_t>; extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_put<wchar_t>; extern template class __timepunct<wchar_t>; extern template class time_put<wchar_t>; extern template class time_put_byname<wchar_t>; extern template class time_get<wchar_t>; extern template class time_get_byname<wchar_t>; extern template class messages<wchar_t>; extern template class messages_byname<wchar_t>; extern template const moneypunct<wchar_t, true>& use_facet<moneypunct<wchar_t, true> >(const locale&); extern template const moneypunct<wchar_t, false>& use_facet<moneypunct<wchar_t, false> >(const locale&); extern template const money_put<wchar_t>& use_facet<money_put<wchar_t> >(const locale&); extern template const money_get<wchar_t>& use_facet<money_get<wchar_t> >(const locale&); extern template const __timepunct<wchar_t>& use_facet<__timepunct<wchar_t> >(const locale&); extern template const time_put<wchar_t>& use_facet<time_put<wchar_t> >(const locale&); extern template const time_get<wchar_t>& use_facet<time_get<wchar_t> >(const locale&); extern template const messages<wchar_t>& use_facet<messages<wchar_t> >(const locale&); extern template bool has_facet<moneypunct<wchar_t> >(const locale&); extern template bool has_facet<money_put<wchar_t> >(const locale&); extern template bool has_facet<money_get<wchar_t> >(const locale&); extern template bool has_facet<__timepunct<wchar_t> >(const locale&); extern template bool has_facet<time_put<wchar_t> >(const locale&); extern template bool has_facet<time_get<wchar_t> >(const locale&); extern template bool has_facet<messages<wchar_t> >(const locale&); #endif #endif _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif