Trace for C ++

Code /*  
Trace. h
*/

# Ifndef _ trace_h __
# Define_ Trace_h __

# include crtdbg. h >
# include stdarg. h >
# include stdio. h >
# include string . h >
# Pragma warning (Disable: 4996)

# Ifdef _ debug
# DefineTracemaxstring 1024

Inline Void Trace ( Const   Char * Format ,...)
{
Static   Char Szbuffer [tracemaxstring];
Va_list ARGs;
Va_start (ARGs, format );
Int Nbuf;
Nbuf = _ Vsnprintf (szbuffer,
Tracemaxstring,
Format,
ARGs );
Va_end (ARGs );

_ rpt0 (_ crt_warn, szbuffer);
}< br> # define traceex _ snprintf (szbuffer, tracemaxstring," % s (% d ):", \
& strrchr (_ file __, ' \\ ' ) [ 1 ] ,__ line _); \
_ rpt0 (_ crt_warn, szbuffer ); \
trace

# Else
InlineVoidTrace (0);
InlineVoidTraceex (0);
# Endif

# Endif //_ Trace_h __

Like cout it's not thread safe, but using this small class, you can print message to output windows.