278 lines
8.1 KiB
C++
278 lines
8.1 KiB
C++
// TR2 <bool_set> support files -*- C++ -*-
|
|
|
|
// Copyright (C) 2009-2021 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 tr2/bool_set.tcc
|
|
* This is a TR2 C++ Library header.
|
|
*/
|
|
|
|
#ifndef _GLIBCXX_TR2_BOOL_SET_TCC
|
|
#define _GLIBCXX_TR2_BOOL_SET_TCC 1
|
|
|
|
#pragma GCC system_header
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
namespace tr2
|
|
{
|
|
bool_set::_Bool_set_val
|
|
bool_set::_S_not[4] =
|
|
{ _S_true_, _S_false, _S_indet, _S_empty };
|
|
|
|
bool_set::_Bool_set_val
|
|
bool_set::_S_xor[4][4] =
|
|
{ { _S_false, _S_true_, _S_indet, _S_empty },
|
|
{ _S_true_, _S_false, _S_indet, _S_empty },
|
|
{ _S_indet, _S_indet, _S_indet, _S_empty },
|
|
{ _S_empty, _S_empty, _S_empty, _S_empty } };
|
|
|
|
bool_set::_Bool_set_val
|
|
bool_set::_S_or[4][4] =
|
|
{ { _S_false, _S_true_, _S_indet, _S_empty },
|
|
{ _S_true_, _S_true_, _S_true_, _S_empty },
|
|
{ _S_indet, _S_true_, _S_indet, _S_empty },
|
|
{ _S_empty, _S_empty, _S_empty, _S_empty } };
|
|
|
|
bool_set::_Bool_set_val
|
|
bool_set::_S_and[4][4] =
|
|
{ { _S_false, _S_false, _S_false, _S_empty },
|
|
{ _S_false, _S_true_, _S_indet, _S_empty },
|
|
{ _S_false, _S_indet, _S_indet, _S_empty },
|
|
{ _S_empty, _S_empty, _S_empty, _S_empty } };
|
|
|
|
bool_set::_Bool_set_val
|
|
bool_set::_S_eq[4][4] =
|
|
{ { _S_true_, _S_false, _S_indet, _S_empty },
|
|
{ _S_false, _S_true_, _S_indet, _S_empty },
|
|
{ _S_indet, _S_indet, _S_indet, _S_empty },
|
|
{ _S_empty, _S_empty, _S_empty, _S_empty } };
|
|
}
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
}
|
|
|
|
// I object to these things.
|
|
// The stuff in locale facets are for basic types.
|
|
// I think we could hack operator<< and operator>>.
|
|
|
|
/**
|
|
* @brief Numeric parsing.
|
|
*
|
|
* Parses the input stream into the bool @a v. It does so by calling
|
|
* num_get::do_get().
|
|
*
|
|
* If ios_base::boolalpha is set, attempts to read
|
|
* ctype<CharT>::truename() or ctype<CharT>::falsename(). Sets
|
|
* @a v to true or false if successful. Sets err to
|
|
* ios_base::failbit if reading the string fails. Sets err to
|
|
* ios_base::eofbit if the stream is emptied.
|
|
*
|
|
* If ios_base::boolalpha is not set, proceeds as with reading a long,
|
|
* except if the value is 1, sets @a v to true, if the value is 0, sets
|
|
* @a v to false, and otherwise set err to ios_base::failbit.
|
|
*
|
|
* @param in Start of input stream.
|
|
* @param end End of input stream.
|
|
* @param io Source of locale and flags.
|
|
* @param err Error flags to set.
|
|
* @param v Value to format and insert.
|
|
* @return Iterator after reading.
|
|
iter_type
|
|
get(iter_type __in, iter_type __end, ios_base& __io,
|
|
ios_base::iostate& __err, bool& __v) const
|
|
{ return this->do_get(__in, __end, __io, __err, __v); }
|
|
*/
|
|
/*
|
|
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_set& __v) const
|
|
{
|
|
if (!(__io.flags() & ios_base::boolalpha))
|
|
{
|
|
// Parse bool values as long.
|
|
// NB: We can't just call do_get(long) here, as it might
|
|
// refer to a derived class.
|
|
long __l = -1;
|
|
__beg = _M_extract_int(__beg, __end, __io, __err, __l);
|
|
if (__c >= _S_false && __c < _S_empty)
|
|
__b._M_b = static_cast<_Bool_set_val>(__c);
|
|
else
|
|
{
|
|
// What should we do here?
|
|
__v = true;
|
|
__err = ios_base::failbit;
|
|
if (__beg == __end)
|
|
__err |= ios_base::eofbit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Parse bool values as alphanumeric.
|
|
typedef __numpunct_cache<_CharT> __cache_type;
|
|
__use_cache<__cache_type> __uc;
|
|
const locale& __loc = __io._M_getloc();
|
|
const __cache_type* __lc = __uc(__loc);
|
|
|
|
bool __testf = true;
|
|
bool __testt = true;
|
|
bool __donef = __lc->_M_falsename_size == 0;
|
|
bool __donet = __lc->_M_truename_size == 0;
|
|
bool __testeof = false;
|
|
size_t __n = 0;
|
|
while (!__donef || !__donet)
|
|
{
|
|
if (__beg == __end)
|
|
{
|
|
__testeof = true;
|
|
break;
|
|
}
|
|
|
|
const char_type __c = *__beg;
|
|
|
|
if (!__donef)
|
|
__testf = __c == __lc->_M_falsename[__n];
|
|
|
|
if (!__testf && __donet)
|
|
break;
|
|
|
|
if (!__donet)
|
|
__testt = __c == __lc->_M_truename[__n];
|
|
|
|
if (!__testt && __donef)
|
|
break;
|
|
|
|
if (!__testt && !__testf)
|
|
break;
|
|
|
|
++__n;
|
|
++__beg;
|
|
|
|
__donef = !__testf || __n >= __lc->_M_falsename_size;
|
|
__donet = !__testt || __n >= __lc->_M_truename_size;
|
|
}
|
|
if (__testf && __n == __lc->_M_falsename_size && __n)
|
|
{
|
|
__v = false;
|
|
if (__testt && __n == __lc->_M_truename_size)
|
|
__err = ios_base::failbit;
|
|
else
|
|
__err = __testeof ? ios_base::eofbit : ios_base::goodbit;
|
|
}
|
|
else if (__testt && __n == __lc->_M_truename_size && __n)
|
|
{
|
|
__v = true;
|
|
__err = __testeof ? ios_base::eofbit : ios_base::goodbit;
|
|
}
|
|
else
|
|
{
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 23. Num_get overflow result.
|
|
__v = false;
|
|
__err = ios_base::failbit;
|
|
if (__testeof)
|
|
__err |= ios_base::eofbit;
|
|
}
|
|
}
|
|
return __beg;
|
|
}
|
|
*/
|
|
|
|
/**
|
|
* @brief Numeric formatting.
|
|
*
|
|
* Formats the boolean @a v and inserts it into a stream. It does so
|
|
* by calling num_put::do_put().
|
|
*
|
|
* If ios_base::boolalpha is set, writes ctype<CharT>::truename() or
|
|
* ctype<CharT>::falsename(). Otherwise formats @a v as an int.
|
|
*
|
|
* @param s Stream to write to.
|
|
* @param io Source of locale and flags.
|
|
* @param fill Char_type to use for filling.
|
|
* @param v Value to format and insert.
|
|
* @return Iterator after writing.
|
|
iter_type
|
|
put(iter_type __s, ios_base& __f, char_type __fill, bool __v) const
|
|
{ return this->do_put(__s, __f, __fill, __v); }
|
|
*/
|
|
|
|
/*
|
|
template<typename _CharT, typename _OutIter>
|
|
_OutIter
|
|
num_put<_CharT, _OutIter>::
|
|
do_put(iter_type __s, ios_base& __io, char_type __fill, bool_set __v) const
|
|
{
|
|
const ios_base::fmtflags __flags = __io.flags();
|
|
if ((__flags & ios_base::boolalpha) == 0)
|
|
{
|
|
const long __l = __v;
|
|
__s = _M_insert_int(__s, __io, __fill, __l);
|
|
}
|
|
else
|
|
{
|
|
typedef __numpunct_cache<_CharT> __cache_type;
|
|
__use_cache<__cache_type> __uc;
|
|
const locale& __loc = __io._M_getloc();
|
|
const __cache_type* __lc = __uc(__loc);
|
|
|
|
const _CharT* __name = __v ? __lc->_M_truename
|
|
: __lc->_M_falsename;
|
|
int __len = __v ? __lc->_M_truename_size
|
|
: __lc->_M_falsename_size;
|
|
|
|
const streamsize __w = __io.width();
|
|
if (__w > static_cast<streamsize>(__len))
|
|
{
|
|
const streamsize __plen = __w - __len;
|
|
_CharT* __ps
|
|
= static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT)
|
|
* __plen));
|
|
|
|
char_traits<_CharT>::assign(__ps, __plen, __fill);
|
|
__io.width(0);
|
|
|
|
if ((__flags & ios_base::adjustfield) == ios_base::left)
|
|
{
|
|
__s = std::__write(__s, __name, __len);
|
|
__s = std::__write(__s, __ps, __plen);
|
|
}
|
|
else
|
|
{
|
|
__s = std::__write(__s, __ps, __plen);
|
|
__s = std::__write(__s, __name, __len);
|
|
}
|
|
return __s;
|
|
}
|
|
__io.width(0);
|
|
__s = std::__write(__s, __name, __len);
|
|
}
|
|
return __s;
|
|
}
|
|
*/
|
|
|
|
#endif // _GLIBCXX_TR2_BOOL_SET_TCC
|