Mercurial > gnulib
view m4/eealloc.m4 @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
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# eealloc.m4 serial 3 dnl Copyright (C) 2003, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_EEALLOC], [ AC_REQUIRE([gl_EEMALLOC]) AC_REQUIRE([gl_EEREALLOC]) ]) AC_DEFUN([gl_EEMALLOC], [ _AC_FUNC_MALLOC_IF( [gl_cv_func_malloc_0_nonnull=1], [gl_cv_func_malloc_0_nonnull=0]) AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], [$gl_cv_func_malloc_0_nonnull], [If malloc(0) is != NULL, define this to 1. Otherwise define this to 0.]) ]) AC_DEFUN([gl_EEREALLOC], [ _AC_FUNC_REALLOC_IF( [gl_cv_func_realloc_0_nonnull=1], [gl_cv_func_realloc_0_nonnull=0]) AC_DEFINE_UNQUOTED([REALLOC_0_IS_NONNULL], [$gl_cv_func_realloc_0_nonnull], [If realloc(NULL,0) is != NULL, define this to 1. Otherwise define this to 0.]) ])