generic-library/cxx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fix bug #20335 - memory leak when move-constructing a string with unequal allocator. Thanks to Thomas Koeppe for the report

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@213269 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2014-07-17 15:32:20 +00:00
parent b1a40264dc
commit d5549ccac1
2 changed files with 26 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
include/string
View File

@@ -1031,16 +1031,16 @@ __str_rfind(const _CharT *__p, _SizeT __sz,
_CharT __c, _SizeT __pos) _NOEXCEPT
{
if (__sz < 1)
return __npos;
if (__pos < __sz)
++__pos;
else
__pos = __sz;
for (const _CharT* __ps = __p + __pos; __ps != __p;)
{
if (_Traits::eq(*--__ps, __c))
return static_cast<_SizeT>(__ps - __p);
}
return __npos;
if (__pos < __sz)
++__pos;
else
__pos = __sz;
for (const _CharT* __ps = __p + __pos; __ps != __p;)
{
if (_Traits::eq(*--__ps, __c))
return static_cast<_SizeT>(__ps - __p);
}
return __npos;
}
@@ -2136,11 +2136,13 @@ inline _LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str, const allocator_type& __a)
: __r_(__a)
{
if (__a == __str.__alloc() || !__str.__is_long())
__r_.first().__r = __str.__r_.first().__r;
else
if (__str.__is_long() && __a != __str.__alloc()) // copy, not move
__init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size());
__str.__zero();
else
{
__r_.first().__r = __str.__r_.first().__r;
__str.__zero();
}
#if _LIBCPP_DEBUG_LEVEL >= 2
__get_db()->__insert_c(this);
if (__is_long())