X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Fstdio%2Ffwide.c;h=8bab634ae0b50ad4245d38b52c00c8e1762c6ab5;hb=5690668a1bb9f551bb78d825bc804dcebe84b7e7;hp=f4da47f6da8ceca422dee4f6c4b1ad45af045ca5;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/stdio/fwide.c b/src/stdio/fwide.c
index f4da47f6..8bab634a 100644
--- a/src/stdio/fwide.c
+++ b/src/stdio/fwide.c
@@ -1,10 +1,16 @@
+#include <wchar.h>
 #include "stdio_impl.h"
-
-#define SH (8*sizeof(int)-1)
-#define NORMALIZE(x) ((x)>>SH | -((-(x))>>SH))
+#include "locale_impl.h"
 
 int fwide(FILE *f, int mode)
 {
-	if (!f->mode) f->mode = NORMALIZE(mode);
-	return f->mode;
+	FLOCK(f);
+	if (mode) {
+		if (!f->locale) f->locale = MB_CUR_MAX==1
+			? C_LOCALE : UTF8_LOCALE;
+		if (!f->mode) f->mode = mode>0 ? 1 : -1;
+	}
+	mode = f->mode;
+	FUNLOCK(f);
+	return mode;
 }