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* build-aux/gendocs.sh (version): * doc/gendocs_template: * doc/gendocs_template_min: * doc/gnulib.texi: * lib/version-etc.c (COPYRIGHT_YEAR): Update copyright dates by hand in templates and the like. * all files: Run 'make update-copyright'.
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Copyright (C) 2008-2017 Free Software Foundation, Inc.
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* Written by Simon Josefsson
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <string.h>
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#include "signature.h"
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SIGNATURE_CHECK (memcmp, int, (void const *, void const *, size_t));
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#include "zerosize-ptr.h"
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#include "macros.h"
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int
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main (void)
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{
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/* Test equal / not equal distinction. */
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ASSERT (memcmp (zerosize_ptr (), zerosize_ptr (), 0) == 0);
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ASSERT (memcmp ("foo", "foobar", 2) == 0);
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ASSERT (memcmp ("foo", "foobar", 3) == 0);
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ASSERT (memcmp ("foo", "foobar", 4) != 0);
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ASSERT (memcmp ("foo", "bar", 1) != 0);
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ASSERT (memcmp ("foo", "bar", 3) != 0);
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/* Test less / equal / greater distinction. */
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ASSERT (memcmp ("foo", "moo", 4) < 0);
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ASSERT (memcmp ("moo", "foo", 4) > 0);
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ASSERT (memcmp ("oomph", "oops", 3) < 0);
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ASSERT (memcmp ("oops", "oomph", 3) > 0);
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ASSERT (memcmp ("foo", "foobar", 4) < 0);
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ASSERT (memcmp ("foobar", "foo", 4) > 0);
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/* Some old versions of memcmp were not 8-bit clean. */
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ASSERT (memcmp ("\100", "\201", 1) < 0);
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ASSERT (memcmp ("\201", "\100", 1) > 0);
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ASSERT (memcmp ("\200", "\201", 1) < 0);
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ASSERT (memcmp ("\201", "\200", 1) > 0);
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/* The Next x86 OpenStep bug shows up only when comparing 16 bytes
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or more and with at least one buffer not starting on a 4-byte boundary.
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William Lewis provided this test program. */
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{
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char foo[21];
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char bar[21];
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int i;
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for (i = 0; i < 4; i++)
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{
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char *a = foo + i;
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char *b = bar + i;
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strcpy (a, "--------01111111");
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strcpy (b, "--------10000000");
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ASSERT (memcmp (a, b, 16) < 0);
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}
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}
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return 0;
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}
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