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gcc/libstdc++-v3/src/locale.cc
Benjamin Kosnik 1ab656771a time_members_gnu.h (__timepunct::_M_get_helper): Add. 
2001-09-28  Benjamin Kosnik  <bkoz@redhat.com>

	* config/locale/time_members_gnu.h (__timepunct::_M_get_helper): Add.
	(__timepunct::_M_put_helper): Add.
	* config/locale/time_members_generic.h: Same.
	* include/bits/locale_facets.h (__match_parallel): Remove. Format.
	(__timepunct): Add data members.
	(__timepunct::_M_days): Add.
	(__timepunct::_M_days_abbreviated): Add.
	(__timepunct::_M_months): Add.
	(__timepunct::_M_months_abbreviated): Add.
	(__timepunct::_M_initialize_timepunct): Add.
	* include/bits/locale_facets.tcc: Same.
	* src/locale-inst.cc: Remove instantiations for __match_parallel.
	* acinclude.m4 (GLIBCPP_ENABLE_CLOCALE): Add CTIME_CC.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/22_locale/time_put_members_char.cc: Mark XFAIL.
	* testsuite/22_locale/time_put_members_char.cc (test01): New file.
	* testsuite/22_locale/time_get.cc: New file.

From-SVN: r45868
2001-09-28 23:44:48 +00:00

998 lines
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// 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.
#include <bits/std_clocale.h>
#include <bits/std_cstring.h>
#include <bits/std_cassert.h>
#include <bits/std_cctype.h>
#include <bits/std_limits.h>
#include <exception>
#include <bits/std_stdexcept.h>
#include <bits/std_locale.h>
#include <bits/std_istream.h>
#include <bits/std_ostream.h>
#include <bits/std_vector.h>
#include <bits/std_memory.h> // for auto_ptr
#ifdef _GLIBCPP_USE_WCHAR_T
# include <bits/std_cwctype.h> // for towupper, etc.
#endif
namespace std
{
// Defined in globals.cc.
extern locale::_Impl locale_impl_c;
extern locale locale_c;
// Definitions for static const data members of locale.
const locale::category locale::none;
const locale::category locale::ctype;
const locale::category locale::numeric;
const locale::category locale::collate;
const locale::category locale::time;
const locale::category locale::monetary;
const locale::category locale::messages;
const locale::category locale::all;
locale::_Impl* locale::_S_classic;
locale::_Impl* locale::_S_global;
const size_t locale::_S_num_categories;
const size_t locale::_S_num_facets;
// Definitions for locale::id of standard facets.
locale::id ctype<char>::id;
locale::id codecvt<char, char, mbstate_t>::id;
#ifdef _GLIBCPP_USE_WCHAR_T
locale::id ctype<wchar_t>::id;
locale::id codecvt<wchar_t, char, mbstate_t>::id;
#endif
// Definitions for static const data members of locale::id
size_t locale::id::_S_highwater; // init'd to 0 by linker
// Definitions for static const data members of locale::_Impl
const locale::id* const
locale::_Impl::_S_id_ctype[] =
{
&std::ctype<char>::id,
&codecvt<char, char, mbstate_t>::id,
#ifdef _GLIBCPP_USE_WCHAR_T
&std::ctype<wchar_t>::id,
&codecvt<wchar_t, char, mbstate_t>::id,
#endif
0
};
const locale::id* const
locale::_Impl::_S_id_numeric[] =
{
&num_get<char>::id,
&num_put<char>::id,
&numpunct<char>::id,
#ifdef _GLIBCPP_USE_WCHAR_T
&num_get<wchar_t>::id,
&num_put<wchar_t>::id,
&numpunct<wchar_t>::id,
#endif
0
};
const locale::id* const
locale::_Impl::_S_id_collate[] =
{
&std::collate<char>::id,
#ifdef _GLIBCPP_USE_WCHAR_T
&std::collate<wchar_t>::id,
#endif
0
};
const locale::id* const
locale::_Impl::_S_id_time[] =
{
&__timepunct<char>::id,
&time_get<char>::id,
&time_put<char>::id,
#ifdef _GLIBCPP_USE_WCHAR_T
&__timepunct<wchar_t>::id,
&time_get<wchar_t>::id,
&time_put<wchar_t>::id,
#endif
0
};
const locale::id* const
locale::_Impl::_S_id_monetary[] =
{
&money_get<char>::id,
&money_put<char>::id,
&moneypunct<char, false>::id,
&moneypunct<char, true >::id,
#ifdef _GLIBCPP_USE_WCHAR_T
&money_get<wchar_t>::id,
&money_put<wchar_t>::id,
&moneypunct<wchar_t, false>::id,
&moneypunct<wchar_t, true >::id,
#endif
0
};
const locale::id* const
locale::_Impl::_S_id_messages[] =
{
&std::messages<char>::id,
#ifdef _GLIBCPP_USE_WCHAR_T
&std::messages<wchar_t>::id,
#endif
0
};
const locale::id* const* const
locale::_Impl::_S_facet_categories[] =
{
// Order must match the decl order in class locale.
locale::_Impl::_S_id_ctype,
locale::_Impl::_S_id_numeric,
locale::_Impl::_S_id_collate,
locale::_Impl::_S_id_time,
locale::_Impl::_S_id_monetary,
locale::_Impl::_S_id_messages,
0
};
locale::~locale() throw()
{ _M_impl->_M_remove_reference(); }
void
locale::_M_coalesce(const locale& __base, const locale& __add,
category __cat)
{
__cat = _S_normalize_category(__cat);
_M_impl = new _Impl(*__base._M_impl, 1);
try
{ _M_impl->_M_replace_categories(__add._M_impl, __cat); }
catch (...)
{
_M_impl->_M_remove_reference();
__throw_exception_again;
}
}
locale::locale() throw()
{
_S_initialize();
(_M_impl = _S_global)->_M_add_reference();
} // XXX MT
locale::locale(const locale& __other) throw()
{ (_M_impl = __other._M_impl)->_M_add_reference(); }
// This is used to initialize global and classic locales, and
// assumes that the _Impl objects are constructed correctly.
locale::locale(_Impl* __ip) throw() : _M_impl(__ip)
{ }
locale::locale(const char* __s)
{
if (__s)
{
_S_initialize();
if (strcmp(__s, "C") == 0 || strcmp(__s, "POSIX") == 0)
(_M_impl = _S_classic)->_M_add_reference();
else
_M_impl = new _Impl(__s, 1);
}
else
__throw_runtime_error("attempt to create locale from NULL name");
}
locale::locale(const locale& __base, const char* __s, category __cat)
{
// NB: There are complicated, yet more efficient ways to do
// this. Building up locales on a per-category way is tedious, so
// let's do it this way until people complain.
locale __add(__s);
_M_coalesce(__base, __add, __cat);
}
locale::locale(const locale& __base, const locale& __add, category __cat)
{ _M_coalesce(__base, __add, __cat); }
bool
locale::operator==(const locale& __rhs) const throw()
{
string __name = this->name();
return (_M_impl == __rhs._M_impl
|| (__name != "*" && __name == __rhs.name()));
}
const locale&
locale::operator=(const locale& __other) throw()
{
__other._M_impl->_M_add_reference();
_M_impl->_M_remove_reference();
_M_impl = __other._M_impl;
return *this;
}
locale
locale::global(const locale& __other)
{
// XXX MT
_S_initialize();
_Impl* __old = _S_global;
__other._M_impl->_M_add_reference();
_S_global = __other._M_impl;
if (_S_global->_M_check_same_name() && _S_global->_M_names[0] != "*")
setlocale(LC_ALL, __other.name().c_str());
// Reference count sanity check: one reference removed for the
// subsition of __other locale, one added by return-by-value. Net
// difference: zero. When the returned locale object's destrutor
// is called, then the reference count is decremented and possibly
// destroyed.
return locale(__old);
}
string
locale::name() const
{
string __ret;
// Need some kind of separator character. This one was pretty much
// arbitrarily chosen as to not conflict with glibc locales: the
// exact formatting is not set in stone.
const char __separator = '|';
if (_M_impl->_M_check_same_name())
__ret = _M_impl->_M_names[0];
else
{
for (size_t i = 0; i < _S_num_categories; ++i)
__ret += __separator + _M_impl->_M_names[i];
}
return __ret;
}
locale const&
locale::classic()
{
// XXX MT
if (!_S_classic)
{
try
{
// 26 Standard facets, 2 references.
// One reference for _M_classic, one for _M_global
_S_classic = new (&locale_impl_c) _Impl("C", 2);
_S_global = _S_classic;
new (&locale_c) locale(_S_classic);
}
catch(...)
{
// Just call destructor, so that locale_impl_c's memory is
// not deallocated via a call to delete.
if (_S_classic)
_S_classic->~_Impl();
_S_classic = _S_global = 0;
__throw_exception_again;
}
}
return locale_c;
}
locale::category
locale::_S_normalize_category(category __cat)
{
int __ret = 0;
if (__cat == none || (__cat & all) && !(__cat & ~all))
__ret = __cat;
else
{
// NB: May be a C-style "LC_ALL" category; convert.
switch (__cat)
{
case LC_COLLATE:
__ret = collate;
break;
case LC_CTYPE:
__ret = ctype;
break;
case LC_MONETARY:
__ret = monetary;
break;
case LC_NUMERIC:
__ret = numeric;
break;
case LC_TIME:
__ret = time;
break;
#ifdef _GLIBCPP_HAVE_LC_MESSAGES
case LC_MESSAGES:
__ret = messages;
break;
#endif
case LC_ALL:
__ret = all;
break;
default:
__throw_runtime_error("bad locale category");
}
}
return __ret;
}
locale::facet::
facet(size_t __refs) throw() : _M_references(__refs)
{ }
void
locale::facet::
_M_add_reference() throw()
{ ++_M_references; } // XXX MT
void
locale::facet::
_M_remove_reference() throw()
{
if (_M_references-- == 0)
{
try
{ delete this; }
catch (...)
{ }
}
}
// Definitions for static const data members of ctype_base.
const ctype_base::mask ctype_base::space;
const ctype_base::mask ctype_base::print;
const ctype_base::mask ctype_base::cntrl;
const ctype_base::mask ctype_base::upper;
const ctype_base::mask ctype_base::lower;
const ctype_base::mask ctype_base::alpha;
const ctype_base::mask ctype_base::digit;
const ctype_base::mask ctype_base::punct;
const ctype_base::mask ctype_base::xdigit;
const ctype_base::mask ctype_base::alnum;
const ctype_base::mask ctype_base::graph;
// Platform-specific initialization code for ctype tables.
#include <bits/ctype_noninline.h>
const size_t ctype<char>::table_size;
ctype<char>::~ctype()
{ if (_M_del) delete[] this->table(); }
// These are dummy placeholders as these virtual functions are never called.
bool
ctype<char>::do_is(mask, char_type) const
{ return false; }
const char*
ctype<char>::do_is(const char_type* __c, const char_type*, mask*) const
{ return __c; }
const char*
ctype<char>::do_scan_is(mask, const char_type* __c, const char_type*) const
{ return __c; }
const char*
ctype<char>::do_scan_not(mask, const char_type* __c, const char_type*) const
{ return __c; }
char
ctype<char>::do_widen(char __c) const
{ return __c; }
const char*
ctype<char>::do_widen(const char* __lo, const char* __hi, char* __dest) const
{
memcpy(__dest, __lo, __hi - __lo);
return __hi;
}
char
ctype<char>::do_narrow(char __c, char /*__dfault*/) const
{ return __c; }
const char*
ctype<char>::do_narrow(const char* __lo, const char* __hi,
char /*__dfault*/, char* __dest) const
{
memcpy(__dest, __lo, __hi - __lo);
return __hi;
}
template<>
ctype_byname<char>::ctype_byname(const char* /*__s*/, size_t __refs)
: ctype<char>(new mask[table_size], true, __refs)
{ }
// Definitions for static const data members of time_base
template<>
const char*
__timepunct<char>::_S_timezones[14] =
{
"GMT", "HST", "AKST", "PST", "MST", "CST", "EST", "AST", "NST", "CET",
"IST", "EET", "CST", "JST"
};
#ifdef _GLIBCPP_USE_WCHAR_T
template<>
const wchar_t*
__timepunct<wchar_t>::_S_timezones[14] =
{
L"GMT", L"HST", L"AKST", L"PST", L"MST", L"CST", L"EST", L"AST",
L"NST", L"CET", L"IST", L"EET", L"CST", L"JST"
};
#endif
// Definitions for static const data members of money_base
const money_base::pattern
money_base::_S_default_pattern = {{symbol, sign, none, value}};
template<>
_Format_cache<char>::_Format_cache()
: _M_valid(true),
_M_decimal_point('.'), _M_thousands_sep(','),
_M_truename("true"), _M_falsename("false"), _M_use_grouping(false)
{ }
#ifdef _GLIBCPP_USE_WCHAR_T
template<>
_Format_cache<wchar_t>::_Format_cache()
: _M_valid(true),
_M_decimal_point(L'.'), _M_thousands_sep(L','),
_M_truename(L"true"), _M_falsename(L"false"), _M_use_grouping(false)
{ }
#endif
template<>
const ctype<char>&
use_facet<ctype<char> >(const locale& __loc)
{
size_t __i = ctype<char>::id._M_index;
const locale::_Impl* __tmp = __loc._M_impl;
return static_cast<const ctype<char>&>(* (*(__tmp->_M_facets))[__i]);
}
#ifdef _GLIBCPP_USE_WCHAR_T
template<>
const ctype<wchar_t>&
use_facet<ctype<wchar_t> >(const locale& __loc)
{
size_t __i = ctype<wchar_t>::id._M_index;
const locale::_Impl* __tmp = __loc._M_impl;
return static_cast<const ctype<wchar_t>&>(* (*(__tmp->_M_facets))[__i]);
}
#endif
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
{
typedef _Format_cache<char> __cache_type;
// Prepare for possible failure
__xtrc[0] = '\0';
// Stage 1: determine a conversion specifier.
ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield;
if (__basefield == ios_base::dec)
__base = 10;
else if (__basefield == ios_base::oct)
__base = 8;
else if (__basefield == ios_base::hex)
__base = 16;
else
__base = 0;
// As far as I can tell, bases other than 10 are not available for
// floating point types
if (__fp)
__base = 10;
// Stage 2: extract characters.
__cache_type const* __fmt = __cache_type::_S_get(__io);
// Fail quickly if !__valid
if (__beg == __end)
{
__err |= (ios_base::eofbit | ios_base::failbit);
return;
}
// Acceptable formats for numbers here are based on 22.2.3.1
string __grp;
int __sep_pos = 0;
int __pos = 0;
const char* __lits = __fmt->_S_literals;
char __c = *__beg;
// Check first for sign
bool __testsign = false;
if ((__c == __lits[__cache_type::_S_minus])
|| (__c == __lits[__cache_type::_S_plus]))
{
__testsign = true;
__xtrc[__pos++] = __c;
++__beg;
__c = * __beg;
// Whitespace may follow a sign
while ((__beg != __end) && (isspace(__c)))
{
++__beg;
__c = *__beg;
}
// There had better be more to come...
if (__beg == __end)
{
__xtrc[__pos] = '\0';
__err |= (ios_base::eofbit | ios_base::failbit);
return;
}
}
// Now check if first character is a zero.
bool __testzero = false;
if (__c == __lits[__cache_type::_S_digits])
{
__testzero = true;
++__beg;
__c = *__beg;
// We have to check for __beg == __end here. If so,
// a plain '0' (possibly with a sign) can be got rid of now
if (__beg == __end)
{
__xtrc[__pos++] = __lits[__cache_type::_S_digits];
__xtrc[__pos] = '\0';
__err |= ios_base::eofbit;
return;
}
// Figure out base for integer types only
// Based on Table 55 of 22.2.2.1.2
if (!__fp && __base != 10 && __base != 8)
{
// Here, __base == 0 or 16
if ((__c == __lits[__cache_type::_S_x])
|| (__c == __lits[__cache_type::_S_X]))
{
++__beg;
__c = *__beg;
__base = 16;
__testzero = false; // "0x" is not a leading zero
}
else if (__base == 0)
__base = 8;
}
// Remove any more leading zeros
while (__beg != __end)
{
if (__c == __lits[__cache_type::_S_digits])
{
++__beg;
__c = *__beg;
__testzero = true;
}
else
break;
}
}
else if (__base == 0) // 1st character is not zero
__base = 10;
// We now seek "units", i.e. digits and thousands separators.
// We may need to know if anything is found here. A leading zero
// (removed by now) would count.
bool __testunits = __testzero;
while (__beg != __end)
{
const char* __p = strchr(__lits, __c);
// NB: strchr returns true for __c == 0x0
if (__p && __c
&&((__p >= &__lits[__cache_type::_S_digits]
&& __p < &__lits[__cache_type::_S_digits + __base])
|| (__p >= &__lits[__cache_type::_S_udigits]
&& __p < &__lits[__cache_type::_S_udigits + __base])))
{
// Try first for acceptable digit; record it if found.
__xtrc[__pos++] = __c;
++__sep_pos;
__testunits = true;
++__beg;
__c = *__beg;
}
else if (__c == __fmt->_M_thousands_sep && __fmt->_M_use_grouping)
{
// NB: Thousands separator at the beginning of a string
// is a no-no, as is two consecutive thousands
// separators.
if (__sep_pos)
{
__grp += static_cast<char>(__sep_pos);
__sep_pos = 0;
++__beg;
__c = *__beg;
}
else
{
__err |= ios_base::failbit;
break;
}
}
else
// Not a valid input item.
break;
}
// Digit grouping is checked. If _M_groupings() doesn't
// match, then get very very upset, and set failbit.
if (__fmt->_M_use_grouping && !__grp.empty())
{
// Add the ending grouping
__grp += static_cast<char>(__sep_pos);
if (!__verify_grouping(__fmt->_M_grouping, __grp))
{
__err |= ios_base::failbit;
__xtrc[__pos] = '\0';
if (__beg == __end)
__err |= ios_base::eofbit;
return;
}
}
// If there was nothing but zeros, put one in the output string
if (__testzero && (__pos == 0 || (__pos == 1 && __testsign)))
__xtrc[__pos++] = __lits[__cache_type::_S_digits];
// That's it for integer types. Remaining code is for floating point
if (__fp && __beg != __end)
{
// Check first for decimal point. There MUST be one if
// __testunits is false.
bool __testdec = false; // Is there a decimal point
// with digits following it?
if (__c == __fmt->_M_decimal_point)
{
__xtrc[__pos++] = '.';
++__beg;
__c = *__beg;
// Now we get any digits after the decimal point
// There MUST be some if __testunits is false.
while (__beg != __end)
{
const char* __p = strchr(__lits, __c);
if ((__p >= &__lits[__cache_type::_S_digits]
&& __p < &__lits[__cache_type::_S_digits + __base])
|| (__p >= &__lits[__cache_type::_S_udigits]
&& __p < &__lits[__cache_type::_S_udigits + __base]))
{
__xtrc[__pos++] = __c;
++__beg;
__c = *__beg;
__testdec = true;
}
else
break;
}
}
if (!__testunits && !__testdec) // Ill formed
{
__err |= ios_base::failbit;
__xtrc[__pos] = '\0';
if (__beg == __end)
__err |= ios_base::eofbit;
return;
}
// Now we may find an exponent
if (__beg != __end)
{
if ((__c == __lits[__cache_type::_S_ee])
|| (__c == __lits[__cache_type::_S_Ee]))
{
__xtrc[__pos++] = __c;
++__beg;
__c = *__beg;
// Now there may be a sign
if (__beg != __end)
{
if ((__c == __lits[__cache_type::_S_minus])
|| (__c == __lits[__cache_type::_S_plus]))
{
__xtrc[__pos++] = __c;
++__beg;
__c = *__beg;
// whitespace may follow a sign
while ((__beg != __end) && (isspace(__c)))
{
++__beg;
__c = *__beg;
}
}
}
// And now there must be some digits
if (__beg == __end)
{
__xtrc[__pos] = '\0';
__err |= (ios_base::eofbit | ios_base::failbit);
return;
}
while (__beg != __end)
{
const char* __p = strchr(__lits, __c);
if ((__p >= &__lits[__cache_type::_S_digits]
&& __p < &__lits[__cache_type::_S_digits + __base])
|| (__p >= &__lits[__cache_type::_S_udigits]
&& __p < &__lits[__cache_type::_S_udigits + __base]))
{
__xtrc[__pos++] = __c;
++__beg;
__c = *__beg;
}
else
break;
}
}
}
// Finally, that's it for floating point
}
// Finish up
__xtrc[__pos] = '\0';
if (__beg == __end)
__err |= ios_base::eofbit;
}
// The following code uses sprintf() to convert floating point
// values for insertion into a stream. The current implementation
// replicates the code in _S_pad_numeric() (in _S_output_float()) in
// order to prevent having to create a "wide" buffer in addition to
// the "narrow" buffer passed to sprintf(). An optimization would be
// to replace sprintf() with code that works directly on a wide
// buffer and then use _S_pad_numeric() to do the padding. It would
// be good to replace sprintf() anyway to avoid accidental buffer
// overruns and to gain back the efficiency that C++ provides by
// knowing up front the type of the values to insert. This
// implementation follows the C++ standard fairly directly as
// outlined in 22.2.2.2 [lib.locale.num.put]
bool
__build_float_format(ios_base& __io, char* __fptr, char __modifier,
streamsize __prec)
{
bool __incl_prec = false;
ios_base::fmtflags __flags = __io.flags();
*__fptr++ = '%';
// [22.2.2.2.2] Table 60
if (__flags & ios_base::showpos)
*__fptr++ = '+';
if (__flags & ios_base::showpoint)
*__fptr++ = '#';
// As per [22.2.2.2.2.11]
if (__flags & ios_base::fixed || __prec > 0)
{
*__fptr++ = '.';
*__fptr++ = '*';
__incl_prec = true;
}
if (__modifier)
*__fptr++ = __modifier;
ios_base::fmtflags __fltfield = __flags & ios_base::floatfield;
// [22.2.2.2.2] Table 58
if (__fltfield == ios_base::fixed)
*__fptr++ = 'f';
else if (__fltfield == ios_base::scientific)
*__fptr++ = (__flags & ios_base::uppercase) ? 'E' : 'e';
else
*__fptr++ = (__flags & ios_base::uppercase) ? 'G' : 'g';
*__fptr = '\0';
return __incl_prec;
}
template<>
moneypunct_byname<char, false>::moneypunct_byname(const char* /*__s*/,
size_t __refs)
: moneypunct<char, false>(__refs) { }
template<>
moneypunct_byname<char, true>::moneypunct_byname(const char* /*__s*/,
size_t __refs)
: moneypunct<char, true>(__refs) { }
#ifdef _GLIBCPP_USE_WCHAR_T
ctype<wchar_t>::__wmask_type
ctype<wchar_t>::_M_convert_to_wmask(const mask __m) const
{
__wmask_type __ret;
switch (__m)
{
case space:
__ret = wctype("space");
break;
case print:
__ret = wctype("print");
break;
case cntrl:
__ret = wctype("cntrl");
break;
case upper:
__ret = wctype("upper");
break;
case lower:
__ret = wctype("lower");
break;
case alpha:
__ret = wctype("alpha");
break;
case digit:
__ret = wctype("digit");
break;
case punct:
__ret = wctype("punct");
break;
case xdigit:
__ret = wctype("xdigit");
break;
case alnum:
__ret = wctype("alnum");
break;
case graph:
__ret = wctype("graph");
break;
default:
__ret = 0;
}
return __ret;
};
ctype<wchar_t>::~ctype() { }
// NB: These ctype<wchar_t> methods are not configuration-specific,
// unlike the ctype<char> bits.
ctype<wchar_t>::ctype(size_t __refs) : __ctype_abstract_base<wchar_t>(__refs)
{ }
wchar_t
ctype<wchar_t>::do_toupper(wchar_t __c) const
{ return towupper(__c); }
const wchar_t*
ctype<wchar_t>::do_toupper(wchar_t* __lo, const wchar_t* __hi) const
{
while (__lo < __hi)
{
*__lo = towupper(*__lo);
++__lo;
}
return __hi;
}
wchar_t
ctype<wchar_t>::do_tolower(wchar_t __c) const
{ return towlower(__c); }
const wchar_t*
ctype<wchar_t>::do_tolower(wchar_t* __lo, const wchar_t* __hi) const
{
while (__lo < __hi)
{
*__lo = towlower(*__lo);
++__lo;
}
return __hi;
}
bool
ctype<wchar_t>::
do_is(mask __m, char_type __c) const
{ return static_cast<bool>(iswctype(__c, _M_convert_to_wmask(__m))); }
const wchar_t*
ctype<wchar_t>::
do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __m) const
{
while (__lo < __hi && !this->is(*__m, *__lo))
++__lo;
return __lo;
}
const wchar_t*
ctype<wchar_t>::
do_scan_is(mask __m, const wchar_t* __lo, const wchar_t* __hi) const
{
while (__lo < __hi && !this->is(__m, *__lo))
++__lo;
return __lo;
}
const wchar_t*
ctype<wchar_t>::
do_scan_not(mask __m, const char_type* __lo, const char_type* __hi) const
{
while (__lo < __hi && this->is(__m, *__lo) != 0)
++__lo;
return __lo;
}
wchar_t
ctype<wchar_t>::
do_widen(char __c) const
{ return btowc(__c); }
const char*
ctype<wchar_t>::
do_widen(const char* __lo, const char* __hi, wchar_t* __dest) const
{
mbstate_t __state;
memset(static_cast<void*>(&__state), 0, sizeof(mbstate_t));
mbsrtowcs(__dest, &__lo, __hi - __lo, &__state);
return __hi;
}
char
ctype<wchar_t>::
do_narrow(wchar_t __wc, char __dfault) const
{
int __c = wctob(__wc);
return (__c == EOF ? __dfault : static_cast<char>(__c));
}
const wchar_t*
ctype<wchar_t>::
do_narrow(const wchar_t* __lo, const wchar_t* __hi, char __dfault,
char* __dest) const
{
mbstate_t __state;
memset(static_cast<void*>(&__state), 0, sizeof(mbstate_t));
size_t __len = __hi - __lo;
size_t __conv = wcsrtombs(__dest, &__lo, __len, &__state);
if (__conv == __len)
*__dest = __dfault;
return __hi;
}
template<>
ctype_byname<wchar_t>::
ctype_byname(const char* /*__s*/, size_t __refs)
: ctype<wchar_t>(__refs) { }
#endif // _GLIBCPP_USE_WCHAR_T
} // namespace std
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