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1/* Test memcmp with size_t in the lower 32 bits of 64-bit register.
2 Copyright (C) 2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
5a82c748 17 <https://www.gnu.org/licenses/>. */
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18
19#define TEST_MAIN
20#ifdef WIDE
21# define TEST_NAME "wmemcmp"
22#else
23# define TEST_NAME "memcmp"
24#endif
25
26#include "test-size_t.h"
27
28#ifdef WIDE
29# include <inttypes.h>
30# include <wchar.h>
31
32# define MEMCMP wmemcmp
33# define CHAR wchar_t
34#else
35# define MEMCMP memcmp
36# define CHAR char
37#endif
38
39IMPL (MEMCMP, 1)
40
41typedef int (*proto_t) (const CHAR *, const CHAR *, size_t);
42
43static int
44__attribute__ ((noinline, noclone))
45do_memcmp (parameter_t a, parameter_t b)
46{
47 return CALL (&b, a.p, b.p, a.len);
48}
49
50static int
51test_main (void)
52{
53 test_init ();
54
55 parameter_t dest = { { page_size / sizeof (CHAR) }, buf1 };
56 parameter_t src = { { 0 }, buf2 };
57
58 memcpy (buf1, buf2, page_size);
59
60 int ret = 0;
61 FOR_EACH_IMPL (impl, 0)
62 {
63 src.fn = impl->fn;
64 int res = do_memcmp (dest, src);
65 if (res)
66 {
67 error (0, 0, "Wrong result in function %s: %i != 0",
68 impl->name, res);
69 ret = 1;
70 }
71 }
72
73 return ret ? EXIT_FAILURE : EXIT_SUCCESS;
74}
75
76#include <support/test-driver.c>