Re: Visual C++ does not seem to have snprinft

[David Laight]

On Fri, Sep 08, 2006 at 12:05:29AM +1000, Jeff L wrote:
> #define snprintf _snprintf

Unfortunately the above isn't adequate, the windows _snprintf() isn't
the same beast as the posix (or is it even part of C now?) snprintf()
in particular:

1) _snprintf() returns -1 if the data wouldn't fit (not the number of bytes
   that would have been output).

2) _snprintf() doesn't always NUL terminate the output!  In particular
   _snprintf(buf, 2, "ab" ) will set buf[0] = 'a', buf[1] = 'b', and
   return 2.
   Almost certainly not what the calling code expceted.

David