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More accurate implementation of cv::format

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This commit is contained in:
Andrey Kamaev 2013-03-26 11:54:04 +04:00
parent 69c9fe357d
commit 2107ea9773
1 changed files with 17 additions and 5 deletions
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22
modules/core/src/system.cpp
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@ -350,11 +350,23 @@ const String& getBuildInformation()
String format( const char* fmt, ... ) String format( const char* fmt, ... )
{ {
char buf[1 << 16]; char buf[1024];
va_list args;
va_start( args, fmt ); va_list va;
vsprintf( buf, fmt, args ); va_start(va, fmt);
return String(buf); int len = vsnprintf(buf, sizeof(buf), fmt, va);
va_end(va);
if (len >= (int)sizeof(buf))
{
String s(len, '\0');
va_start(va, fmt);
len = vsnprintf((char*)s.c_str(), len + 1, fmt, va);
va_end(va);
return s;
}
return String(buf, len);
} }
String tempfile( const char* suffix ) String tempfile( const char* suffix )