diff options
| -rw-r--r-- | src/stdio/vfprintf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c index f13fbe10..2c4fdf3d 100644 --- a/src/stdio/vfprintf.c +++ b/src/stdio/vfprintf.c @@ -552,7 +552,7 @@ static int printf_core(FILE *f, const char *fmt, va_list *ap, union arg *nl_arg, fl |= ALT_FORM; case 'x': case 'X': a = fmt_x(arg.i, z, t&32); - if (fl & ALT_FORM) prefix+=(t>>4), pl=2; + if (arg.i && (fl & ALT_FORM)) prefix+=(t>>4), pl=2; if (0) { case 'o': a = fmt_o(arg.i, z); |