X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fstdio%2Fvfprintf.c;h=4c990e5e54fa730c755206a9c5a6b4c597e8b2a3;hb=544ee752cd38febfa3aa3798b4dfb6fabd13846b;hp=f13fbe10576d157684ecfc9d4e8bcf448010cd6d;hpb=8628eff9128d66cc69dbc301341dc55130a9817e;p=musl

diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index f13fbe10..4c990e5e 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);
@@ -570,8 +570,11 @@ static int printf_core(FILE *f, const char *fmt, va_list *ap, union arg *nl_arg,
 		case 'u':
 			a = fmt_u(arg.i, z);
 			}
-			if (!arg.i && !p) continue;
 			if (p>=0) fl &= ~ZERO_PAD;
+			if (!arg.i && !p) {
+				a=z;
+				break;
+			}
 			p = MAX(p, z-a + !arg.i);
 			break;
 		case 'c':