use labs() for variables of type long instead of abs()

Using abs() on long values can cause truncation, so use labs() instead.
Reported by Clang 3.5 (-Wabsolute-value, enabled by -Wall).

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/config.c b/config.c
index 9e42d3832bbcce428705ef616d5b2008c47ec91a..dd5e9827882c67f20d880bc3c36a143cb0fdf82c 100644 (file)
--- a/config.c
+++ b/config.c
@@ -490,9 +490,9 @@ static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
                        errno = EINVAL;
                        return 0;
                }
-               uval = abs(val);
+               uval = labs(val);
                uval *= factor;
-               if (uval > max || abs(val) > uval) {
+               if (uval > max || labs(val) > uval) {
                        errno = ERANGE;
                        return 0;
                }