fix incorrect overflow errors on strtoul, etc.

[musl] / src / stdlib / wcstoul.c

diff --git a/src/stdlib/wcstoul.c b/src/stdlib/wcstoul.c
index e39faaf..9cbec1a 100644 (file)
--- a/src/stdlib/wcstoul.c
+++ b/src/stdlib/wcstoul.c
@@ -6,8 +6,11 @@
 
 unsigned long wcstoul(const wchar_t *s, wchar_t **p, int base)
 {
-       uintmax_t x = wcstoumax(s, p, base);
-       if (x > ULONG_MAX) {
+       intmax_t x;
+       if (sizeof(intmax_t) == sizeof(long))
+               return wcstoumax(s, p, base);
+       x = wcstoimax(s, p, base);
+       if (-x > ULONG_MAX || x > ULONG_MAX) {
                errno = ERANGE;
                return ULONG_MAX;
        }