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ffs: avoid undefined behavior * lib/ffs.c (ffs): Provide fallback for non-32-bit int. * tests/test-ffs.c (naive, main): Avoid signed shifts. Reported by Bruno Haible. Signed-off-by: Eric Blake <eblake@redhat.com>
author Eric Blake <eblake@redhat.com>
date Fri, 15 Jul 2011 14:26:43 -0600
parents 97fc9a21a8fb
children 8250f2777afc
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# round-ieee.m4 serial 1
dnl Copyright (C) 2010-2011 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.

dnl This macro is in a separate file (not in round.m4 and not inlined in the
dnl module description), so that gl_FUNC_ROUND can test whether 'aclocal' has
dnl found uses of this macro.

AC_DEFUN([gl_FUNC_ROUND_IEEE],
[
  m4_divert_text([INIT_PREPARE], [gl_round_required=ieee])
  AC_REQUIRE([gl_FUNC_ROUND])
])