fix incorrect overflow errors on strtoul, etc.

[musl] / src / stdlib / strtoull.c

diff --git a/src/stdlib/strtoull.c b/src/stdlib/strtoull.c
index 20aa7bd..5d1c4ee 100644 (file)
--- a/src/stdlib/strtoull.c
+++ b/src/stdlib/strtoull.c
@@ -5,8 +5,11 @@
 
 unsigned long long strtoull(const char *s, char **p, int base)
 {
-       uintmax_t x = strtoumax(s, p, base);
-       if (x > ULLONG_MAX) {
+       intmax_t x;
+       if (sizeof(intmax_t) == sizeof(long long))
+               return strtoumax(s, p, base);
+       x = strtoimax(s, p, base);
+       if (-x > ULLONG_MAX || x > ULLONG_MAX) {
                errno = ERANGE;
                return ULLONG_MAX;
        }