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* [newlib-cygwin] Fix undefined behavior: left-shifting into the sign bit.
@ 2022-06-24 5:42 Sebastian Huber
0 siblings, 0 replies; only message in thread
From: Sebastian Huber @ 2022-06-24 5:42 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5e7a2b174ae1a54dd5cdd3c19455c6b81d5133f8
commit 5e7a2b174ae1a54dd5cdd3c19455c6b81d5133f8
Author: Konstantin Belousov <kib@FreeBSD.org>
Date: Mon Dec 23 20:18:05 2019 +0000
Fix undefined behavior: left-shifting into the sign bit.
Reviewed by: dim, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D22898
Diff:
---
newlib/libc/sys/rtems/include/sys/bitset.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/newlib/libc/sys/rtems/include/sys/bitset.h b/newlib/libc/sys/rtems/include/sys/bitset.h
index a1fd8b316..9ff18f4f3 100644
--- a/newlib/libc/sys/rtems/include/sys/bitset.h
+++ b/newlib/libc/sys/rtems/include/sys/bitset.h
@@ -44,7 +44,7 @@
#define __constexpr_cond(expr) (__builtin_constant_p((expr)) && (expr))
#define __bitset_mask(_s, n) \
- (1L << (__constexpr_cond(__bitset_words((_s)) == 1) ? \
+ (1UL << (__constexpr_cond(__bitset_words((_s)) == 1) ? \
(__size_t)(n) : ((n) % _BITSET_BITS)))
#define __bitset_word(_s, n) \
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