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basic_string.tcc (insert(size_type, const _CharT*, size_type __n)): Fix length_error check.

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2004-01-23  Paolo Carlini  <pcarlini@suse.de>

	* include/bits/basic_string.tcc (insert(size_type,
	const _CharT*, size_type __n)): Fix length_error check.
	(replace(size_type, size_type, const _CharT*, size_type):
	Ditto; call _M_replace_safe.
	(_M_replace_aux(size_type, size_type, size_type, _CharT):
	Fix length_error check.
	(_M_replace(iterator, iterator, _InputIterator,
	_InputIterator)): Ditto, tweak.
	(_M_replace_safe(size_type, size_type, const _CharT*,
	size_type)): Remove length_error check.

	* include/bits/basic_string.tcc (append(const basic_string&),
	append(const basic_string&, size_type, size_type)): Tweak
	comment.

	* include/bits/basic_string.tcc (copy(_CharT*, size_type,
	size_type)): If __n == 0 don't call traits::copy.

From-SVN: r76476
This commit is contained in:
Paolo Carlini 2004-01-24 00:27:19 +00:00 committed by Paolo Carlini
parent fa2f03062c
commit 251804e635
2 changed files with 38 additions and 19 deletions
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20
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,23 @@
2004-01-23 Paolo Carlini <pcarlini@suse.de>
* include/bits/basic_string.tcc (insert(size_type,
const _CharT*, size_type __n)): Fix length_error check.
(replace(size_type, size_type, const _CharT*, size_type):
Ditto; call _M_replace_safe.
(_M_replace_aux(size_type, size_type, size_type, _CharT):
Fix length_error check.
(_M_replace(iterator, iterator, _InputIterator,
_InputIterator)): Ditto, tweak.
(_M_replace_safe(size_type, size_type, const _CharT*,
size_type)): Remove length_error check.
* include/bits/basic_string.tcc (append(const basic_string&),
append(const basic_string&, size_type, size_type)): Tweak
comment.
* include/bits/basic_string.tcc (copy(_CharT*, size_type,
size_type)): If __n == 0 don't call traits::copy.
2004-01-23 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: Reduce lock contention.

37
libstdc++-v3/include/bits/basic_string.tcc
View File

@ -320,8 +320,8 @@ namespace std
{
__glibcxx_requires_string_len(__s, __n);
__pos = _M_check(__pos, "basic_string::insert");
if (this->size() > this->max_size() - __n)
__throw_length_error("basic_string::insert");
if (this->max_size() - this->size() < __n)
__throw_length_error("basic_string::insert");
if (_M_rep()->_M_is_shared() || less<const _CharT*>()(__s, _M_data())
|| less<const _CharT*>()(_M_data() + this->size(), __s))
return _M_replace_safe(__pos, size_type(0), __s, __n);
@ -356,15 +356,17 @@ namespace std
__glibcxx_requires_string_len(__s, __n2);
__pos = _M_check(__pos, "basic_string::replace");
__n1 = _M_limit(__pos, __n1);
if (this->size() - __n1 > this->max_size() - __n2)
if (this->max_size() - (this->size() - __n1) < __n2)
__throw_length_error("basic_string::replace");
if (_M_rep()->_M_is_shared() || less<const _CharT*>()(__s, _M_data())
|| less<const _CharT*>()(_M_data() + this->size(), __s))
|| less<const _CharT*>()(_M_data() + this->size(), __s))
return _M_replace_safe(__pos, __n1, __s, __n2);
// Todo: optimized in-place replace.
else
return _M_replace(_M_ibegin() + __pos, _M_ibegin() + __pos + __n1,
__s, __s + __n2);
{
// Todo: optimized in-place replace.
const basic_string __tmp(__s, __n2);
return _M_replace_safe(__pos, __n1, __tmp._M_data(), __n2);
}
}
template<typename _CharT, typename _Traits, typename _Alloc>
@ -609,7 +611,7 @@ namespace std
_M_replace_aux(size_type __pos1, size_type __n1, size_type __n2,
_CharT __c)
{
if (this->size() - __n1 > this->max_size() - __n2)
if (this->max_size() - (this->size() - __n1) < __n2)
__throw_length_error("basic_string::_M_replace_aux");
_M_mutate(__pos1, __n1, __n2);
if (__n2)
@ -627,7 +629,10 @@ namespace std
_InputIterator __k2)
{
const basic_string __s(__k1, __k2);
return _M_replace_safe(__i1 - _M_ibegin(), __i2 - __i1, __s._M_data(),
const size_type __n1 = __i2 - __i1;
if (this->max_size() - (this->size() - __n1) < __s.size())
__throw_length_error("basic_string::_M_replace");
return _M_replace_safe(__i1 - _M_ibegin(), __n1, __s._M_data(),
__s.size());
}
@ -639,8 +644,6 @@ namespace std
_M_replace_safe(size_type __pos1, size_type __n1, const _CharT* __s,
size_type __n2)
{
if (this->size() - __n1 > this->max_size() - __n2)
__throw_length_error("basic_string::_M_replace_safe");
_M_mutate(__pos1, __n1, __n2);
if (__n2)
traits_type::copy(_M_data() + __pos1, __s, __n2);
@ -665,7 +668,7 @@ namespace std
{
// Iff appending itself, string needs to pre-reserve the
// correct size so that _M_mutate does not clobber the
// iterators formed here.
// pointer __str._M_data() formed here.
const size_type __size = __str.size();
const size_type __len = __size + this->size();
if (__len > this->capacity())
@ -681,7 +684,7 @@ namespace std
{
// Iff appending itself, string needs to pre-reserve the
// correct size so that _M_mutate does not clobber the
// iterators formed here.
// pointer __str._M_data() formed here.
__pos = __str._M_check(__pos, "basic_string::append");
__n = __str._M_limit(__pos, __n);
const size_type __len = __n + this->size();
@ -740,10 +743,9 @@ namespace std
{
__pos = _M_check(__pos, "basic_string::copy");
__n = _M_limit(__pos, __n);
__glibcxx_requires_string_len(__s, __n);
traits_type::copy(__s, _M_data() + __pos, __n);
if (__n)
traits_type::copy(__s, _M_data() + __pos, __n);
// 21.3.5.7 par 3: do not append null. (good.)
return __n;
}
@ -782,7 +784,6 @@ namespace std
return __ret;
}
template<typename _CharT, typename _Traits, typename _Alloc>
typename basic_string<_CharT, _Traits, _Alloc>::size_type
basic_string<_CharT, _Traits, _Alloc>::
@ -963,7 +964,6 @@ namespace std
return __r;
}
template<typename _CharT, typename _Traits, typename _Alloc>
int
basic_string<_CharT, _Traits, _Alloc>::
@ -979,7 +979,6 @@ namespace std
return __r;
}
template<typename _CharT, typename _Traits, typename _Alloc>
int
basic_string <_CharT, _Traits, _Alloc>::