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don't expect errno to be set to EOVERFLOW if vsnprintf() fails

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36290 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2005-11-29 22:59:02 +00:00
parent 455c8f1d55
commit b1727cfef7
1 changed files with 1 additions and 11 deletions
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12
src/common/string.cpp
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@ -1839,23 +1839,13 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)
// vsnprintf() may return either -1 (traditional Unix behaviour) or the // vsnprintf() may return either -1 (traditional Unix behaviour) or the
// total number of characters which would have been written if the // total number of characters which would have been written if the
// buffer were large enough // buffer were large enough (newer standards such as Unix98)
if ( len >= 0 && len <= size ) if ( len >= 0 && len <= size )
{ {
// ok, there was enough space // ok, there was enough space
break; break;
} }
#ifdef EOVERFLOW
// if the error is not due to not having enough space (it could be e.g.
// EILSEQ), break too -- we'd just eat all available memory uselessly
if ( errno != EOVERFLOW )
{
// no sense in continuing
break;
}
#endif // EOVERFLOW
// still not enough, double it again // still not enough, double it again
size *= 2; size *= 2;
} }