1 /* Test and measure STRLEN functions.
2 Copyright (C) 1999, 2002, 2003, 2005, 2011 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Written by Jakub Jelinek <jakub@redhat.com>, 1999.
5 Added wcslen support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
22 #include "test-string.h"
25 # define STRLEN strlen
27 # define MAX_CHAR CHAR_MAX
30 # define STRLEN wcslen
32 # define MAX_CHAR WCHAR_MAX
35 typedef size_t (*proto_t) (const CHAR *);
38 simple_STRLEN (const CHAR *s)
48 builtin_strlen (const CHAR *p)
50 return __builtin_strlen (p);
52 IMPL (builtin_strlen, 0)
55 IMPL (simple_STRLEN, 0)
60 do_one_test (impl_t *impl, const CHAR *s, size_t exp_len)
62 size_t len = CALL (impl, s);
65 error (0, 0, "Wrong result in function %s %zd %zd", impl->name,
73 hp_timing_t start __attribute ((unused));
74 hp_timing_t stop __attribute ((unused));
75 hp_timing_t best_time = ~ (hp_timing_t) 0;
78 for (i = 0; i < 32; ++i)
80 HP_TIMING_NOW (start);
83 HP_TIMING_BEST (best_time, start, stop);
86 printf ("\t%zd", (size_t) best_time);
91 do_test (size_t align, size_t len)
96 if (align + sizeof(CHAR) * len >= page_size)
99 CHAR *buf = (CHAR *) (buf1);
101 for (i = 0; i < len; ++i)
102 buf[align + i] = 1 + 11111 * i % MAX_CHAR;
103 buf[align + len] = 0;
106 printf ("Length %4zd, alignment %2zd:", len, align);
108 FOR_EACH_IMPL (impl, 0)
109 do_one_test (impl, (CHAR *) (buf + align), len);
116 do_random_tests (void)
118 size_t i, j, n, align, len;
119 CHAR *p = (CHAR *) (buf1 + page_size - 512 * sizeof(CHAR));
121 for (n = 0; n < ITERATIONS; n++)
123 align = random () & 15;
124 len = random () & 511;
125 if (len + align > 510)
126 len = 511 - align - (random () & 7);
127 j = len + align + 64;
131 for (i = 0; i < j; i++)
133 if (i == len + align)
137 p[i] = random () & 255;
138 if (i >= align && i < len + align && !p[i])
139 p[i] = (random () & 127) + 1;
143 FOR_EACH_IMPL (impl, 1)
144 if (CALL (impl, (CHAR *) (p + align)) != len)
146 error (0, 0, "Iteration %zd - wrong result in function %s (%zd) %zd != %zd, p %p",
147 n, impl->name, align, CALL (impl, (CHAR *) (p + align)),
162 FOR_EACH_IMPL (impl, 0)
163 printf ("\t%s", impl->name);
166 /* Checking with only 4 * N alignments for wcslen, other alignments are wrong for wchar_t type arrays*/
168 for (i = 1; i < 8; ++i)
170 do_test (sizeof(CHAR) * i, i);
174 for (i = 2; i <= 12; ++i)
177 do_test (sizeof(CHAR) * 7, 1 << i);
178 do_test (sizeof(CHAR) * i, 1 << i);
179 do_test (sizeof(CHAR) * i, (size_t)((1 << i) / 1.5));
186 #include "../test-skeleton.c"