fix usage of locks with vfork

[musl] / src / stdio / vfprintf.c

diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index d186d58..4a2752b 100644 (file)
--- 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;
@@ -636,7 +636,7 @@ static int printf_core(FILE *f, const char *fmt, va_list *ap, union arg *nl_arg,
        return 1;
 }
 
-int vfprintf(FILE *f, const char *fmt, va_list ap)
+int vfprintf(FILE *restrict f, const char *restrict fmt, va_list ap)
 {
        va_list ap2;
        int nl_type[NL_ARGMAX+1] = {0};