Date: 2010mar17 Language: C/C++ Q. How do I use _snprintf_s() and why is it crashing? A. The regular way to is it is:

char buf[1000]; _snprintf_s(buf, sizeof(buf), _TRUNCATE, ...);

But this crashes More info: http://connect.microsoft.com/VisualStudio/feedback/details/289013/snprintf-s-causes-array-out-of-bounds-write-when-the-truncate-flag-is-used-for-count So modify your stdlib.h file as explained there or use _snprintf() like this:

_snprintf(buf, sizeof(buf), ...);