[Bug libstdc++/68737] FAIL: 22_locale/num_put/put/char/14220.cc execution test

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68737

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Could you see what this prints on the target please?

#include <cerrno>

int
getlen(char* __out, int __size __attribute__((unused)), const char* __fmt, ...)
{
  __builtin_va_list __args;
  __builtin_va_start(__args, __fmt);

#if _GLIBCXX_USE_C99_STDIO
  __builtin_puts("using vsnprintf");
  const int __ret = __builtin_vsnprintf(__out, __size, __fmt, __args);
#else
  __builtin_puts("using vsprintf");
  const int __ret = __builtin_vsprintf(__out, __fmt, __args);
#endif
  return __ret;
}

int main()
{
  char out[64];
  errno = 0;
  int len = getlen(out, 0, "%.*g", 6, 1.99);
  __builtin_printf("returned %d, errno = %d\n", len, errno);
}