fix wcsto[iu]max with high characters

[musl] / src / stdlib / wcstoumax.c

diff --git a/src/stdlib/wcstoumax.c b/src/stdlib/wcstoumax.c
index e30b063..af7ba3d 100644 (file)
--- a/src/stdlib/wcstoumax.c
+++ b/src/stdlib/wcstoumax.c
@@ -8,7 +8,6 @@
 uintmax_t wcstoumax(const wchar_t *s, wchar_t **p, int base)
 {
        struct intparse ip = {0};
-       unsigned char tmp;
 
        if (p) *p = (wchar_t *)s;
 
@@ -20,7 +19,7 @@ uintmax_t wcstoumax(const wchar_t *s, wchar_t **p, int base)
        for (; iswspace(*s); s++);
 
        ip.base = base;
-       for (; *s<256 && (tmp=*s, __intparse(&ip, &tmp, 1)); s++);
+       for (; __intparse(&ip, (char[]){(*s&-(*s<128U))}, 1); s++);
 
        if (p && ip.err != EINVAL)
                *p = (wchar_t *)s;