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regex.h (regex_traits<>::transform_primary): Avoid past-the-end dereferences. 

2013-08-16  Tim Shen  <timshen91@gmail.com>

	* include/bits/regex.h (regex_traits<>::transform_primary):
	Avoid past-the-end dereferences.

From-SVN: r201783
This commit is contained in:
Tim Shen 2013-08-16 09:06:31 +00:00 committed by Paolo Carlini
parent 639dc669ec
commit 5073d50905
2 changed files with 12 additions and 14 deletions
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5
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,8 @@
2013-08-16 Tim Shen <timshen91@gmail.com>
* include/bits/regex.h (regex_traits<>::transform_primary):
Avoid past-the-end dereferences.
2013-08-14 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/58163

15
libstdc++-v3/include/bits/regex.h
View File

@ -219,20 +219,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _Fwd_iter>
string_type
transform_primary(_Fwd_iter __first, _Fwd_iter __last) const
{
__try
{
typedef std::ctype<char_type> __ctype_type;
const __ctype_type& __fctyp(use_facet<__ctype_type>(_M_locale));
std::vector<char_type> __v(__first, __last);
std::vector<char_type> __s(__first, __last);
// FIXME : this is not entirely correct
__fctyp.tolower(&*__v.begin(), &*__v.end());
return this->transform(&*__v.begin(), &*__v.end());
}
__catch (std::bad_cast)
{
}
return string_type();
__fctyp.tolower(__s.data(), __s.data() + __s.size());
return this->transform(__s.data(), __s.data() + __s.size());
}
/**
@ -572,7 +565,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
std::string __s(__last - __first, '?');
__fctyp.narrow(__first, __last, '?', &__s[0]);
__cctyp.tolower(&*__s.begin(), &*__s.end());
__cctyp.tolower(&*__s.begin(), &*__s.begin() + __s.size());
for (_ClassnameEntry* __it = __classnames;
__it < *(&__classnames + 1);
++__it)