Mercurial > gnulib

view m4/count-trailing-zeros.m4 @ 40215:88b18d82fa61

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
crypto/des: Fix undefined behaviour. * lib/des.c (READ_64BIT_DATA): Cast bytes to 'unsigned int', to avoid shift operations on 'int'.
author Bruno Haible <bruno@clisp.org>
date Sat, 09 Mar 2019 22:21:25 +0100
parents b06060465f09
children
line wrap: on
line source

# count-trailing-zeros.m4
dnl Copyright (C) 2013-2019 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_COUNT_TRAILING_ZEROS],
[
  dnl We don't need (and can't compile) count_trailing_zeros_ll
  dnl unless the type 'unsigned long long int' exists.
  AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
])