Function wabt_vsnprintf

src/config.cc:32–41

 -1 instead of the number of characters needed on overflow. */
#if COMPILER_IS_MSVC
int wabt_vsnprintf(char* str, size_t size, const char* format, va_list ap) {
  int result = -1;
  if (size != 0) {
    result = _vsnprintf_s(str, size, _TRUNCATE, format, ap);
  }
  if (result == -1) {
    result = _vscprintf(format, ap);
  }
  return result;
}

#if !HAVE_SNPRINTF
int wabt_snprintf(char* str, size_t size, const char* format, ...) {