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Reference: http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20130325/077133.html

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@178581 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2013-04-02 22:14:51 +00:00
parent b777d6a4b2
commit cf31d3864e
2 changed files with 115 additions and 26 deletions
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16
include/fstream
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@@ -807,9 +807,15 @@ basic_filebuf<_CharT, _Traits>::seekoff(off_type __off, ios_base::seekdir __way,
default:
return pos_type(off_type(-1));
}
#if _WIN32
if (fseek(__file_, __width > 0 ? __width * __off : 0, __whence))
return pos_type(off_type(-1));
pos_type __r = ftell(__file_);
#else
if (fseeko(__file_, __width > 0 ? __width * __off : 0, __whence))
return pos_type(off_type(-1));
pos_type __r = ftello(__file_);
#endif
__r.state(__st_);
return __r;
}
@@ -820,8 +826,13 @@ basic_filebuf<_CharT, _Traits>::seekpos(pos_type __sp, ios_base::openmode)
{
if (__file_ == 0 || sync())
return pos_type(off_type(-1));
#if _WIN32
if (fseek(__file_, __sp, SEEK_SET))
return pos_type(off_type(-1));
#else
if (fseeko(__file_, __sp, SEEK_SET))
return pos_type(off_type(-1));
#endif
__st_ = __sp.state();
return __sp;
}
@@ -880,8 +891,13 @@ basic_filebuf<_CharT, _Traits>::sync()
}
}
}
#if _WIN32
if (fseek(__file_, -__c, SEEK_CUR))
return -1;
#else
if (fseeko(__file_, -__c, SEEK_CUR))
return -1;
#endif
if (__update_st)
__st_ = __state;
__extbufnext_ = __extbufend_ = __extbuf_;