From 44a3eaeba04ef78835ca741592c376428ada5f71 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Sat, 2 Dec 2017 10:30:25 +0100 Subject: New upstream version 0.9.8 --- tests/xalloc-oversized.h | 63 ------------------------------------------------ 1 file changed, 63 deletions(-) delete mode 100644 tests/xalloc-oversized.h (limited to 'tests/xalloc-oversized.h') diff --git a/tests/xalloc-oversized.h b/tests/xalloc-oversized.h deleted file mode 100644 index 53e6556..0000000 --- a/tests/xalloc-oversized.h +++ /dev/null @@ -1,63 +0,0 @@ -/* xalloc-oversized.h -- memory allocation size checking - - Copyright (C) 1990-2000, 2003-2004, 2006-2016 Free Software Foundation, Inc. - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . */ - -#ifndef XALLOC_OVERSIZED_H_ -#define XALLOC_OVERSIZED_H_ - -#include - -/* Default for (non-Clang) compilers that lack __has_builtin. */ -#ifndef __has_builtin -# define __has_builtin(x) 0 -#endif - -/* True if N * S would overflow in a size calculation. - This expands to a constant expression if N and S are both constants. - By gnulib convention, SIZE_MAX represents overflow in size - calculations, so the conservative dividend to use here is - SIZE_MAX - 1, since SIZE_MAX might represent an overflowed value. - However, malloc (SIZE_MAX) fails on all known hosts where - sizeof (ptrdiff_t) <= sizeof (size_t), so do not bother to test for - exactly-SIZE_MAX allocations on such hosts; this avoids a test and - branch when S is known to be 1. */ -#define __xalloc_oversized(n, s) \ - ((size_t) (sizeof (ptrdiff_t) <= sizeof (size_t) ? -1 : -2) / (s) < (n)) - - -/* Return 1 if an array of N objects, each of size S, cannot exist due - to size arithmetic overflow. S must be positive and N must be - nonnegative. This is a macro, not a function, so that it - works correctly even when SIZE_MAX < N. */ - -#if 7 <= __GNUC__ || __has_builtin (__builtin_add_overflow_p) -# define xalloc_oversized(n, s) __builtin_mul_overflow_p (n, s, (size_t) 1) -#elif ((5 <= __GNUC__ \ - || (__has_builtin (__builtin_mul_overflow) \ - && __has_builtin (__builtin_constant_p))) \ - && !__STRICT_ANSI__) -# define xalloc_oversized(n, s) \ - (__builtin_constant_p (n) && __builtin_constant_p (s) \ - ? __xalloc_oversized (n, s) \ - : ({ size_t __xalloc_size; __builtin_mul_overflow (n, s, &__xalloc_size); })) - -/* Other compilers use integer division; this may be slower but is - more portable. */ -#else -# define xalloc_oversized(n, s) __xalloc_oversized (n, s) -#endif - -#endif /* !XALLOC_OVERSIZED_H_ */ -- cgit v1.2.3