mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-19 21:50:19 +08:00
3b0fd4bcdb
2001-06-11 Benjamin Kosnik <bkoz@redhat.com> libstdc++/3126 * include/bits/basic_string.h (string::compare): Adjust signatures as per DR 5. * include/bits/basic_string.tcc: And here. libstdc++/2346 * config/c_io_stdio.h: Remove whitespace. * testsuite/27_io/istream_seeks.cc (test03): Add regression. (test02): Add regression. * testsuite/27_io/istream_seeks-3.tst: New file. From-SVN: r43240
863 lines
28 KiB
C++
863 lines
28 KiB
C++
// Components for manipulating sequences of characters -*- 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.
|
|
|
|
//
|
|
// ISO C++ 14882: 21 Strings library
|
|
//
|
|
|
|
// This file is included by <string>. It is not meant to be included
|
|
// separately.
|
|
|
|
// Written by Jason Merrill based upon the specification by Takanori Adachi
|
|
// in ANSI X3J16/94-0013R2. Rewritten by Nathan Myers to ISO-14882.
|
|
|
|
#ifndef _CPP_BITS_STRING_TCC
|
|
#define _CPP_BITS_STRING_TCC 1
|
|
|
|
namespace std
|
|
{
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
const _CharT
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
_Rep::_S_terminal = _CharT();
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
const typename basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
_Rep::_S_max_size = (((npos - sizeof(_Rep))/sizeof(_CharT)) - 1) / 4;
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
const typename basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::npos;
|
|
|
|
// Linker sets _S_empty_rep_storage to all 0s (one reference, empty string)
|
|
// at static init time (before static ctors are run).
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
typename basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::_S_empty_rep_storage[
|
|
(sizeof(_Rep) + sizeof(_CharT) + sizeof(size_type) - 1)/sizeof(size_type)];
|
|
|
|
// NB: This is the special case for Input Iterators, used in
|
|
// istreambuf_iterators, etc.
|
|
// Input Iterators have a cost structure very different from
|
|
// pointers, calling for a different coding style.
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
template<typename _InIter>
|
|
_CharT*
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
_S_construct(_InIter __beg, _InIter __end, const _Alloc& __a,
|
|
input_iterator_tag)
|
|
{
|
|
if (__beg == __end && __a == _Alloc())
|
|
return _S_empty_rep()._M_refcopy();
|
|
// Avoid reallocation for common case.
|
|
_CharT __buf[100];
|
|
size_type __i = 0;
|
|
while (__beg != __end && __i < sizeof(__buf) / sizeof(_CharT))
|
|
{
|
|
__buf[__i++] = *__beg;
|
|
++__beg;
|
|
}
|
|
_Rep* __r = _Rep::_S_create(__i, __a);
|
|
traits_type::copy(__r->_M_refdata(), __buf, __i);
|
|
__r->_M_length = __i;
|
|
try
|
|
{
|
|
// NB: this loop looks precisely this way because
|
|
// it avoids comparing __beg != __end any more
|
|
// than strictly necessary; != might be expensive!
|
|
for (;;)
|
|
{
|
|
_CharT* __p = __r->_M_refdata() + __r->_M_length;
|
|
_CharT* __last = __r->_M_refdata() + __r->_M_capacity;
|
|
for (;;)
|
|
{
|
|
if (__beg == __end)
|
|
{
|
|
__r->_M_length = __p - __r->_M_refdata();
|
|
*__p = _Rep::_S_terminal; // grrr.
|
|
return __r->_M_refdata();
|
|
}
|
|
if (__p == __last)
|
|
break;
|
|
*__p++ = *__beg;
|
|
++__beg;
|
|
}
|
|
// Allocate more space.
|
|
size_type __len = __p - __r->_M_refdata();
|
|
_Rep* __another = _Rep::_S_create(__len + 1, __a);
|
|
traits_type::copy(__another->_M_refdata(),
|
|
__r->_M_refdata(), __len);
|
|
__r->_M_destroy(__a);
|
|
__r = __another;
|
|
__r->_M_length = __len;
|
|
}
|
|
}
|
|
catch(...)
|
|
{
|
|
__r->_M_destroy(__a);
|
|
__throw_exception_again;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
template <class _InIter>
|
|
_CharT*
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
_S_construct(_InIter __beg, _InIter __end, const _Alloc& __a,
|
|
forward_iterator_tag)
|
|
{
|
|
size_type __dnew = static_cast<size_type>(distance(__beg, __end));
|
|
|
|
if (__beg == __end && __a == _Alloc())
|
|
return _S_empty_rep()._M_refcopy();
|
|
|
|
// Check for out_of_range and length_error exceptions.
|
|
_Rep* __r = _Rep::_S_create(__dnew, __a);
|
|
try
|
|
{ _S_copy_chars(__r->_M_refdata(), __beg, __end); }
|
|
catch(...)
|
|
{
|
|
__r->_M_destroy(__a);
|
|
__throw_exception_again;
|
|
}
|
|
__r->_M_length = __dnew;
|
|
|
|
__r->_M_refdata()[__dnew] = _Rep::_S_terminal; // grrr.
|
|
return __r->_M_refdata();
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
_CharT*
|
|
basic_string<_CharT,_Traits, _Alloc>::
|
|
_S_construct(size_type __n, _CharT __c, const _Alloc& __a)
|
|
{
|
|
if (__n == 0 && __a == _Alloc())
|
|
return _S_empty_rep()._M_refcopy();
|
|
|
|
// Check for out_of_range and length_error exceptions.
|
|
_Rep* __r = _Rep::_S_create(__n, __a);
|
|
try
|
|
{
|
|
if (__n)
|
|
traits_type::assign(__r->_M_refdata(), __n, __c);
|
|
}
|
|
catch(...)
|
|
{
|
|
__r->_M_destroy(__a);
|
|
__throw_exception_again;
|
|
}
|
|
__r->_M_length = __n;
|
|
__r->_M_refdata()[__n] = _Rep::_S_terminal; // grrr
|
|
return __r->_M_refdata();
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(const basic_string& __str)
|
|
: _M_dataplus(__str._M_rep()->_M_grab(_Alloc(), __str.get_allocator()),
|
|
__str.get_allocator())
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(const _Alloc& __a)
|
|
: _M_dataplus(_S_construct(size_type(), _CharT(), __a), __a)
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(const basic_string& __str, size_type __pos, size_type __n)
|
|
: _M_dataplus(_S_construct(__str._M_check(__pos),
|
|
__str._M_fold(__pos, __n), _Alloc()), _Alloc())
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(const basic_string& __str, size_type __pos,
|
|
size_type __n, const _Alloc& __a)
|
|
: _M_dataplus(_S_construct(__str._M_check(__pos),
|
|
__str._M_fold(__pos, __n), __a), __a)
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(const _CharT* __s, size_type __n, const _Alloc& __a)
|
|
: _M_dataplus(_S_construct(__s, __s + __n, __a), __a)
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(const _CharT* __s, const _Alloc& __a)
|
|
: _M_dataplus(_S_construct(__s, __s + traits_type::length(__s), __a), __a)
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(size_type __n, _CharT __c, const _Alloc& __a)
|
|
: _M_dataplus(_S_construct(__n, __c, __a), __a)
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
template<typename _InputIter>
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
basic_string(_InputIter __beg, _InputIter __end, const _Alloc& __a)
|
|
: _M_dataplus(_S_construct(__beg, __end, __a), __a)
|
|
{ }
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::assign(const basic_string& __str)
|
|
{
|
|
if (_M_rep() != __str._M_rep())
|
|
{
|
|
// XXX MT
|
|
allocator_type __a = this->get_allocator();
|
|
_CharT* __tmp = __str._M_rep()->_M_grab(__a, __str.get_allocator());
|
|
_M_rep()->_M_dispose(__a);
|
|
_M_data(__tmp);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
void
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep::
|
|
_M_destroy(const _Alloc& __a) throw ()
|
|
{
|
|
size_type __size = sizeof(_Rep) + (_M_capacity + 1) * sizeof(_CharT);
|
|
_Raw_bytes_alloc(__a).deallocate(reinterpret_cast<char*>(this), __size);
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
void
|
|
basic_string<_CharT, _Traits, _Alloc>::_M_leak_hard()
|
|
{
|
|
if (_M_rep()->_M_is_shared())
|
|
_M_mutate(0, 0, 0);
|
|
_M_rep()->_M_set_leaked();
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
void
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
_M_mutate(size_type __pos, size_type __len1, size_type __len2)
|
|
{
|
|
size_type __old_size = this->size();
|
|
const size_type __new_size = __old_size + __len2 - __len1;
|
|
const _CharT* __src = _M_data() + __pos + __len1;
|
|
const size_type __how_much = __old_size - __pos - __len1;
|
|
|
|
if (_M_rep()->_M_is_shared() || __new_size > capacity())
|
|
{
|
|
// Must reallocate.
|
|
allocator_type __a = get_allocator();
|
|
_Rep* __r = _Rep::_S_create(__new_size, __a);
|
|
try
|
|
{
|
|
if (__pos)
|
|
traits_type::copy(__r->_M_refdata(), _M_data(), __pos);
|
|
if (__how_much)
|
|
traits_type::copy(__r->_M_refdata() + __pos + __len2,
|
|
__src, __how_much);
|
|
}
|
|
catch(...)
|
|
{
|
|
__r->_M_dispose(get_allocator());
|
|
__throw_exception_again;
|
|
}
|
|
_M_rep()->_M_dispose(__a);
|
|
_M_data(__r->_M_refdata());
|
|
}
|
|
else if (__how_much && __len1 != __len2)
|
|
{
|
|
// Work in-place
|
|
traits_type::move(_M_data() + __pos + __len2, __src, __how_much);
|
|
}
|
|
_M_rep()->_M_set_sharable();
|
|
_M_rep()->_M_length = __new_size;
|
|
_M_data()[__new_size] = _Rep::_S_terminal; // grrr. (per 21.3.4)
|
|
// You cannot leave those LWG people alone for a second.
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
void
|
|
basic_string<_CharT, _Traits, _Alloc>::reserve(size_type __res)
|
|
{
|
|
if (__res > this->capacity() || _M_rep()->_M_is_shared())
|
|
{
|
|
if (__res > this->max_size())
|
|
__throw_length_error("basic_string::reserve");
|
|
allocator_type __a = get_allocator();
|
|
_CharT* __tmp = _M_rep()->_M_clone(__a, __res - this->size());
|
|
_M_rep()->_M_dispose(__a);
|
|
_M_data(__tmp);
|
|
}
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
void basic_string<_CharT, _Traits, _Alloc>::swap(basic_string& __s)
|
|
{
|
|
if (_M_rep()->_M_is_leaked())
|
|
_M_rep()->_M_set_sharable();
|
|
if (__s._M_rep()->_M_is_leaked())
|
|
__s._M_rep()->_M_set_sharable();
|
|
if (this->get_allocator() == __s.get_allocator())
|
|
{
|
|
_CharT* __tmp = _M_data();
|
|
_M_data(__s._M_data());
|
|
__s._M_data(__tmp);
|
|
}
|
|
// The code below can usually be optimized away.
|
|
else
|
|
{
|
|
basic_string __tmp1(_M_ibegin(), _M_iend(), __s.get_allocator());
|
|
basic_string __tmp2(__s._M_ibegin(), __s._M_iend(),
|
|
this->get_allocator());
|
|
*this = __tmp2;
|
|
__s = __tmp1;
|
|
}
|
|
}
|
|
|
|
#ifdef _GLIBCPP_ALLOC_CONTROL
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
bool (*basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_excess_slop)
|
|
(size_t, size_t) =
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_default_excess;
|
|
#endif
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep*
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep::
|
|
_S_create(size_t __capacity, const _Alloc& __alloc)
|
|
{
|
|
typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
|
|
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
|
|
// 83. String::npos vs. string::max_size()
|
|
if (__capacity > _S_max_size)
|
|
#else
|
|
if (__capacity == npos)
|
|
#endif
|
|
__throw_length_error("basic_string::_S_create");
|
|
|
|
// NB: Need an array of char_type[__capacity], plus a
|
|
// terminating null char_type() element, plus enough for the
|
|
// _Rep data structure. Whew. Seemingly so needy, yet so elemental.
|
|
size_t __size = (__capacity + 1) * sizeof(_CharT) + sizeof(_Rep);
|
|
// NB: Might throw, but no worries about a leak, mate: _Rep()
|
|
// does not throw.
|
|
void* __place = _Raw_bytes_alloc(__alloc).allocate(__size);
|
|
_Rep *__p = new (__place) _Rep;
|
|
__p->_M_capacity = __capacity;
|
|
__p->_M_set_sharable(); // one reference
|
|
__p->_M_length = 0;
|
|
return __p;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
_CharT*
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep::
|
|
_M_clone(const _Alloc& __alloc, size_type __res)
|
|
{
|
|
_Rep* __r = _Rep::_S_create(_M_length + __res, __alloc);
|
|
if (_M_length)
|
|
{
|
|
try
|
|
{ traits_type::copy(__r->_M_refdata(), _M_refdata(), _M_length); }
|
|
catch(...)
|
|
{
|
|
__r->_M_destroy(__alloc);
|
|
__throw_exception_again;
|
|
}
|
|
}
|
|
__r->_M_length = _M_length;
|
|
return __r->_M_refdata();
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
inline bool
|
|
#ifdef _GLIBCPP_ALLOC_CONTROL
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep::
|
|
_S_default_excess(size_t __s, size_t __r)
|
|
#else
|
|
basic_string<_CharT, _Traits, _Alloc>::_Rep::
|
|
_S_excess_slop(size_t __s, size_t __r)
|
|
#endif
|
|
{
|
|
return 2 * (__s <= 16 ? 16 : __s) < __r;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
void
|
|
basic_string<_CharT, _Traits, _Alloc>::resize(size_type __n, _CharT __c)
|
|
{
|
|
if (__n > max_size())
|
|
__throw_length_error("basic_string::resize");
|
|
size_type __size = this->size();
|
|
if (__size < __n)
|
|
this->append(__n - __size, __c);
|
|
else if (__n < __size)
|
|
this->erase(__n);
|
|
// else nothing (in particular, avoid calling _M_mutate() unnecessarily.)
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
template<typename _InputIter>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
_M_replace(iterator __i1, iterator __i2, _InputIter __k1,
|
|
_InputIter __k2, input_iterator_tag)
|
|
{
|
|
basic_string __s(__k1, __k2);
|
|
return this->replace(__i1, __i2, __s._M_ibegin(), __s._M_iend());
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
template<typename _ForwardIter>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
_M_replace(iterator __i1, iterator __i2, _ForwardIter __k1,
|
|
_ForwardIter __k2, forward_iterator_tag)
|
|
{
|
|
size_type __dold = __i2 - __i1;
|
|
size_type __dmax = this->max_size();
|
|
size_type __dnew = static_cast<size_type>(distance(__k1, __k2));
|
|
|
|
if (__dmax <= __dnew)
|
|
__throw_length_error("basic_string::_M_replace");
|
|
size_type __off = __i1 - _M_ibegin();
|
|
_M_mutate(__off, __dold, __dnew);
|
|
// Invalidated __i1, __i2
|
|
if (__dnew)
|
|
_S_copy_chars(_M_data() + __off, __k1, __k2);
|
|
|
|
return *this;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
replace(size_type __pos1, size_type __n1, const basic_string& __str,
|
|
size_type __pos2, size_type __n2)
|
|
{
|
|
return this->replace(_M_check(__pos1), _M_fold(__pos1, __n1),
|
|
__str._M_check(__pos2),
|
|
__str._M_fold(__pos2, __n2));
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(const basic_string& __str)
|
|
{
|
|
// Iff appending itself, string needs to pre-reserve the
|
|
// correct size so that _M_mutate does not clobber the
|
|
// iterators formed here.
|
|
size_type __size = __str.size();
|
|
size_type __len = __size + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __str._M_ibegin(),
|
|
__str._M_iend());
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(const basic_string& __str, size_type __pos, size_type __n)
|
|
{
|
|
// Iff appending itself, string needs to pre-reserve the
|
|
// correct size so that _M_mutate does not clobber the
|
|
// iterators formed here.
|
|
size_type __len = min(__str.size() - __pos, __n) + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __str._M_check(__pos),
|
|
__str._M_fold(__pos, __n));
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(const _CharT* __s, size_type __n)
|
|
{
|
|
size_type __len = __n + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __s, __s + __n);
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>&
|
|
basic_string<_CharT,_Traits,_Alloc>::
|
|
append(size_type __n, _CharT __c)
|
|
{
|
|
size_type __len = __n + this->size();
|
|
if (__len > this->capacity())
|
|
this->reserve(__len);
|
|
return this->replace(_M_iend(), _M_iend(), __n, __c);
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>
|
|
operator+(const _CharT* __lhs,
|
|
const basic_string<_CharT,_Traits,_Alloc>& __rhs)
|
|
{
|
|
typedef basic_string<_CharT,_Traits,_Alloc> __string_type;
|
|
typedef typename __string_type::size_type __size_type;
|
|
__size_type __len = _Traits::length(__lhs);
|
|
__string_type __str;
|
|
__str.reserve(__len + __rhs.size());
|
|
__str.append(__lhs, __lhs + __len);
|
|
__str.append(__rhs);
|
|
return __str;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT,_Traits,_Alloc>
|
|
operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs)
|
|
{
|
|
typedef basic_string<_CharT,_Traits,_Alloc> __string_type;
|
|
typedef typename __string_type::size_type __size_type;
|
|
__string_type __str;
|
|
__size_type __len = __rhs.size();
|
|
__str.reserve(__len + 1);
|
|
__str.append(__size_type(1), __lhs);
|
|
__str.append(__rhs);
|
|
return __str;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>&
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
replace(iterator __i1, iterator __i2, size_type __n2, _CharT __c)
|
|
{
|
|
size_type __n1 = __i2 - __i1;
|
|
size_type __off1 = __i1 - _M_ibegin();
|
|
if (max_size() - (this->size() - __n1) <= __n2)
|
|
__throw_length_error("basic_string::replace");
|
|
_M_mutate (__off1, __n1, __n2);
|
|
// Invalidated __i1, __i2
|
|
if (__n2)
|
|
traits_type::assign(_M_data() + __off1, __n2, __c);
|
|
return *this;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
copy(_CharT* __s, size_type __n, size_type __pos) const
|
|
{
|
|
if (__pos > this->size())
|
|
__throw_out_of_range("basic_string::copy");
|
|
|
|
if (__n > this->size() - __pos)
|
|
__n = this->size() - __pos;
|
|
|
|
traits_type::copy(__s, _M_data() + __pos, __n);
|
|
// 21.3.5.7 par 3: do not append null. (good.)
|
|
return __n;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_t __xpos = __pos;
|
|
const _CharT* __data = _M_data();
|
|
for (; __xpos + __n <= __size; ++__xpos)
|
|
if (traits_type::compare(__data + __xpos, __s, __n) == 0)
|
|
return __xpos;
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find(_CharT __c, size_type __pos) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_type __ret = npos;
|
|
if (__pos < __size)
|
|
{
|
|
const _CharT* __data = _M_data();
|
|
size_type __n = __size - __pos;
|
|
const _CharT* __p = traits_type::find(__data + __pos, __n, __c);
|
|
if (__p)
|
|
__ret = __p - __data;
|
|
}
|
|
return __ret;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
rfind(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__n <= __size)
|
|
{
|
|
__pos = std::min(__size - __n ,__pos);
|
|
const _CharT* __data = _M_data();
|
|
do
|
|
{
|
|
if (traits_type::compare(__data + __pos, __s, __n) == 0)
|
|
return __pos;
|
|
}
|
|
while (__pos-- > 0);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
rfind(_CharT __c, size_type __pos) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size)
|
|
{
|
|
size_t __xpos = __size - 1;
|
|
if (__xpos > __pos)
|
|
__xpos = __pos;
|
|
|
|
for (++__xpos; __xpos-- > 0; )
|
|
if (traits_type::eq(_M_data()[__xpos], __c))
|
|
return __xpos;
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_first_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
for (; __n && __pos < this->size(); ++__pos)
|
|
{
|
|
const _CharT* __p = traits_type::find(__s, __n, _M_data()[__pos]);
|
|
if (__p)
|
|
return __pos;
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_last_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size && __n)
|
|
{
|
|
if (--__size > __pos)
|
|
__size = __pos;
|
|
do
|
|
{
|
|
if (traits_type::find(__s, __n, _M_data()[__size]))
|
|
return __size;
|
|
}
|
|
while (__size-- != 0);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_t __xpos = __pos;
|
|
for (; __n && __xpos < this->size(); ++__xpos)
|
|
if (!traits_type::find(__s, __n, _M_data()[__xpos]))
|
|
return __xpos;
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_first_not_of(_CharT __c, size_type __pos) const
|
|
{
|
|
size_t __xpos = __pos;
|
|
for (; __xpos < this->size(); ++__xpos)
|
|
if (!traits_type::eq(_M_data()[__xpos], __c))
|
|
return __xpos;
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size && __n)
|
|
{
|
|
if (--__size > __pos)
|
|
__size = __pos;
|
|
do
|
|
{
|
|
if (!traits_type::find(__s, __n, _M_data()[__size]))
|
|
return __size;
|
|
}
|
|
while (__size--);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
basic_string<_CharT, _Traits, _Alloc>::size_type
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
find_last_not_of(_CharT __c, size_type __pos) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__size)
|
|
{
|
|
if (--__size > __pos)
|
|
__size = __pos;
|
|
do
|
|
{
|
|
if (!traits_type::eq(_M_data()[__size], __c))
|
|
return __size;
|
|
}
|
|
while (__size--);
|
|
}
|
|
return npos;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
compare(size_type __pos, size_type __n, const basic_string& __str) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_type __osize = __str.size();
|
|
if (__pos > __size)
|
|
__throw_out_of_range("basic_string::compare");
|
|
|
|
size_type __rsize= min(__size - __pos, __n);
|
|
size_type __len = min(__rsize, __osize);
|
|
int __r = traits_type::compare(_M_data() + __pos, __str.data(), __len);
|
|
if (!__r)
|
|
__r = __rsize - __osize;
|
|
return __r;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
compare(size_type __pos1, size_type __n1, const basic_string& __str,
|
|
size_type __pos2, size_type __n2) const
|
|
{
|
|
size_type __size = this->size();
|
|
size_type __osize = __str.size();
|
|
if (__pos1 > __size || __pos2 > __osize)
|
|
__throw_out_of_range("basic_string::compare");
|
|
|
|
size_type __rsize = min(__size - __pos1, __n1);
|
|
size_type __rosize = min(__osize - __pos2, __n2);
|
|
size_type __len = min(__rsize, __rosize);
|
|
int __r = traits_type::compare(_M_data() + __pos1,
|
|
__str.data() + __pos2, __len);
|
|
if (!__r)
|
|
__r = __rsize - __rosize;
|
|
return __r;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string<_CharT, _Traits, _Alloc>::
|
|
compare(const _CharT* __s) const
|
|
{
|
|
size_type __size = this->size();
|
|
int __r = traits_type::compare(_M_data(), __s, __size);
|
|
if (!__r)
|
|
__r = __size - traits_type::length(__s);
|
|
return __r;
|
|
}
|
|
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string <_CharT,_Traits,_Alloc>::
|
|
compare(size_type __pos, size_type __n1, const _CharT* __s) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__pos > __size)
|
|
__throw_out_of_range("basic_string::compare");
|
|
|
|
size_type __osize = traits_type::length(__s);
|
|
size_type __rsize = min(__size - __pos, __n1);
|
|
size_type __len = min(__rsize, __osize);
|
|
int __r = traits_type::compare(_M_data() + __pos, __s, __len);
|
|
if (!__r)
|
|
__r = __rsize - __osize;
|
|
return __r;
|
|
}
|
|
|
|
template<typename _CharT, typename _Traits, typename _Alloc>
|
|
int
|
|
basic_string <_CharT,_Traits,_Alloc>::
|
|
compare(size_type __pos, size_type __n1, const _CharT* __s,
|
|
size_type __n2) const
|
|
{
|
|
size_type __size = this->size();
|
|
if (__pos > __size)
|
|
__throw_out_of_range("basic_string::compare");
|
|
|
|
size_type __osize = min(traits_type::length(__s), __n2);
|
|
size_type __rsize = min(__size - __pos, __n1);
|
|
size_type __len = min(__rsize, __osize);
|
|
int __r = traits_type::compare(_M_data() + __pos, __s, __len);
|
|
if (!__r)
|
|
__r = __rsize - __osize;
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT, class _Traits, class _Alloc>
|
|
void
|
|
_S_string_copy(const basic_string<_CharT, _Traits, _Alloc>& __str,
|
|
_CharT* __buf, typename _Alloc::size_type __bufsiz)
|
|
{
|
|
typedef typename _Alloc::size_type size_type;
|
|
size_type __strsize = __str.size();
|
|
size_type __bytes = min(__strsize, __bufsiz - 1);
|
|
_Traits::copy(__buf, __str.data(), __bytes);
|
|
__buf[__bytes] = _CharT();
|
|
}
|
|
} // namespace std
|
|
|
|
#endif
|