On 2010-08-27 03:50:43 +0200, Yao G. said:
Using printf / writeln is perfectly fine, until you start to program in
Windows, where there's no command line to display the text. Here's
where I think a small logging library comes handy. I did a small one
that logs to a file, and a variant that display the log messages to a
independent window.
void odprintf(const char *format, ...){
char buf[4096], *p = buf;
va_list args;
int n;
va_start(args, format);
#ifdef WIN32
n = _vsnprintf(p, sizeof buf - 3, format, args); // buf-3 is room for
CR/LF/NUL
#else
n = vsnprintf(p, sizeof buf - 3, format, args); // buf-3 is room for
CR/LF/NUL
#endif
va_end(args);
p += (n < 0) ? sizeof buf - 3 : n;
while ( p > buf && isspace(p[-1]) )
*--p = '\0';
*p++ = '\r';
*p++ = '\n';
*p = '\0';
#ifdef WIN32
OutputDebugString(buf);
#else
printf("%s", buf);
#endif
}
Should do the trick and than sue something like debugview from
ex-sysinternals. Works very well.
--
Robert M. Münch
http://www.robertmuench.de
