X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=lib%2Fxmalloc.c;h=9a30d67b9fa89f52325fb3af863453b11496d056;hb=92249085071a973e2c0621b0415b93d2e48bb00d;hp=3b5f86cdca11571c5326d9833d3597413e3e4425;hpb=4ee107046a0ffd91f6c60c787326a5e27b799f6d;p=debian%2Fgzip diff --git a/lib/xmalloc.c b/lib/xmalloc.c index 3b5f86c..9a30d67 100644 --- a/lib/xmalloc.c +++ b/lib/xmalloc.c @@ -1,6 +1,6 @@ /* xmalloc.c -- malloc with out of memory checking - Copyright (C) 1990-2000, 2002-2006, 2008-2012 Free Software Foundation, Inc. + Copyright (C) 1990-2000, 2002-2006, 2008-2018 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 @@ -13,15 +13,13 @@ 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 . */ + along with this program. If not, see . */ #include -#if ! HAVE_INLINE -# define static_inline -#endif +#define XALLOC_INLINE _GL_EXTERN_INLINE + #include "xalloc.h" -#undef static_inline #include #include @@ -95,11 +93,11 @@ void * xcalloc (size_t n, size_t s) { void *p; - /* Test for overflow, since some calloc implementations don't have - proper overflow checks. But omit overflow and size-zero tests if - HAVE_GNU_CALLOC, since GNU calloc catches overflow and never - returns NULL if successful. */ - if ((! HAVE_GNU_CALLOC && xalloc_oversized (n, s)) + /* Test for overflow, since objects with size greater than + PTRDIFF_MAX cause pointer subtraction to go awry. Omit size-zero + tests if HAVE_GNU_CALLOC, since GNU calloc never returns NULL if + successful. */ + if (xalloc_oversized (n, s) || (! (p = calloc (n, s)) && (HAVE_GNU_CALLOC || n != 0))) xalloc_die (); return p;