avoid raising spurious division-by-zero exception in printf

77625186 · Rich Felker · f321de9e · 77625186
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

src/stdio/vfprintf.c src/stdio/vfprintf.c +1 -1

未找到文件。
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -200,7 +200,7 @@ static int fmt_fp(FILE *f, long double y, int w, int p, int fl, int t)
 	char ebuf0[3*sizeof(int)], *ebuf=&ebuf0[3*sizeof(int)], *estr;

 	pl=1;
-	if (y<0 || 1/y<0) {
+	if (signbit(y)) {
 		y=-y;
 	} else if (fl & MARK_POS) {
 		prefix+=3;