diff options
Diffstat (limited to 'lib/xalloc-oversized.h')
| -rw-r--r-- | lib/xalloc-oversized.h | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/lib/xalloc-oversized.h b/lib/xalloc-oversized.h index aefa6fd8..7f30f83e 100644 --- a/lib/xalloc-oversized.h +++ b/lib/xalloc-oversized.h @@ -1,6 +1,6 @@ /* xalloc-oversized.h -- memory allocation size checking - Copyright (C) 1990-2000, 2003-2004, 2006-2022 Free Software Foundation, Inc. + Copyright (C) 1990-2000, 2003-2004, 2006-2024 Free Software Foundation, Inc. This file is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as @@ -29,8 +29,7 @@ is SIZE_MAX - 1. */ #define __xalloc_oversized(n, s) \ ((s) != 0 \ - && ((size_t) (PTRDIFF_MAX < SIZE_MAX ? PTRDIFF_MAX : SIZE_MAX - 1) / (s) \ - < (n))) + && (PTRDIFF_MAX < SIZE_MAX ? PTRDIFF_MAX : SIZE_MAX - 1) / (s) < (n)) /* Return 1 if and only if an array of N objects, each of size S, cannot exist reliably because its total size in bytes would exceed @@ -48,13 +47,13 @@ #if 7 <= __GNUC__ && !defined __clang__ && PTRDIFF_MAX < SIZE_MAX # define xalloc_oversized(n, s) \ __builtin_mul_overflow_p (n, s, (ptrdiff_t) 1) -#elif (5 <= __GNUC__ && !defined __ICC && !__STRICT_ANSI__ \ - && PTRDIFF_MAX < SIZE_MAX) +#elif 5 <= __GNUC__ && !defined __ICC && PTRDIFF_MAX < SIZE_MAX # define xalloc_oversized(n, s) \ (__builtin_constant_p (n) && __builtin_constant_p (s) \ ? __xalloc_oversized (n, s) \ - : ({ ptrdiff_t __xalloc_count; \ - __builtin_mul_overflow (n, s, &__xalloc_count); })) + : __extension__ \ + ({ ptrdiff_t __xalloc_count; \ + __builtin_mul_overflow (n, s, &__xalloc_count); })) /* Other compilers use integer division; this may be slower but is more portable. */ |