From: Karel Zak <kzak@redhat.com>
Date: Tue, 17 Jan 2023 15:36:13 +0000 (+0100)
Subject: c.h: fix compiler warning [-Werror=shift-count-overflow]
X-Git-Tag: v2.39-rc1~159
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1ef0be3a1acfbe5bb8aac80a24e0a1d9a17876d1;p=thirdparty%2Futil-linux.git

c.h: fix compiler warning [-Werror=shift-count-overflow]

It's probably typo in the original path (too many brackets:-)). Let's
be explicit about the types used in the calculation. '1 << n' means
the left shift is on 'int', but we need '(t)1 << n'.

Addresses: e53463ea40c58a6f84a597966ac69be9be72cd7d
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/include/c.h b/include/c.h
index 0f25fb009d..1fa2dc766f 100644
--- a/include/c.h
+++ b/include/c.h
@@ -526,6 +526,6 @@ static inline void print_features(const char **features, const char *prefix)
 # define MAP_ANONYMOUS  (MAP_ANON)
 #endif
 
-#define SINT_MAX(t) ((t) (1 << (sizeof(t) * 8 - 2)) - 1 + ((t) 1 << (sizeof(t) * 8 - 2)))
+#define SINT_MAX(t) (((t)1 << (sizeof(t) * 8 - 2)) - (t)1 + ((t)1 << (sizeof(t) * 8 - 2)))
 
 #endif /* UTIL_LINUX_C_H */