Merge libc++ trunk r321414 to contrib/libc++.

This commit is contained in:
dim 2017-12-24 01:16:28 +00:00
parent ce5138296c
commit 5c489c31e7
2 changed files with 5 additions and 4 deletions

View File

@ -577,6 +577,7 @@ basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(off_type __off,
if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out)
&& __way == ios_base::cur)
return pos_type(-1);
const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data();
off_type __noff;
switch (__way)
{
@ -590,13 +591,13 @@ basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(off_type __off,
__noff = this->pptr() - this->pbase();
break;
case ios_base::end:
__noff = __hm_ - __str_.data();
__noff = __hm;
break;
default:
return pos_type(-1);
}
__noff += __off;
if (__noff < 0 || __hm_ - __str_.data() < __noff)
if (__noff < 0 || __hm < __noff)
return pos_type(-1);
if (__noff != 0)
{

View File

@ -196,9 +196,9 @@ public:
// types
typedef _Traits traits_type;
typedef _CharT value_type;
typedef const _CharT* pointer;
typedef _CharT* pointer;
typedef const _CharT* const_pointer;
typedef const _CharT& reference;
typedef _CharT& reference;
typedef const _CharT& const_reference;
typedef const_pointer const_iterator; // See [string.view.iterators]
typedef const_iterator iterator;