/* Test and measure strcasestr functions. Copyright (C) 2010-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Ulrich Drepper <drepper@redhat.com>, 2010. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #define TEST_MAIN #define TEST_NAME "strcasestr" #include "test-string.h" #define STRCASESTR simple_strcasestr #define NO_ALIAS #define __strncasecmp strncasecmp #include "strcasestr.c" static char * stupid_strcasestr (const char *s1, const char *s2) { ssize_t s1len = strlen (s1); ssize_t s2len = strlen (s2); if (s2len > s1len) return NULL; for (ssize_t i = 0; i <= s1len - s2len; ++i) { size_t j; for (j = 0; j < s2len; ++j) if (tolower (s1[i + j]) != tolower (s2[j])) break; if (j == s2len) return (char *) s1 + i; } return NULL; } typedef char *(*proto_t) (const char *, const char *); IMPL (stupid_strcasestr, 0) IMPL (simple_strcasestr, 0) IMPL (strcasestr, 1) static int check_result (impl_t *impl, const char *s1, const char *s2, char *exp_result) { char *result = CALL (impl, s1, s2); if (result != exp_result) { error (0, 0, "Wrong result in function %s %s %s", impl->name, result, exp_result); ret = 1; return -1; } return 0; } static void do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result) { if (check_result (impl, s1, s2, exp_result) < 0) return; if (HP_TIMING_AVAIL) { hp_timing_t start __attribute ((unused)); hp_timing_t stop __attribute ((unused)); hp_timing_t best_time = ~(hp_timing_t) 0; size_t i; for (i = 0; i < 32; ++i) { HP_TIMING_NOW (start); CALL (impl, s1, s2); HP_TIMING_NOW (stop); HP_TIMING_BEST (best_time, start, stop); } printf ("\t%zd", (size_t) best_time); } } static void do_test (size_t align1, size_t align2, size_t len1, size_t len2, int fail) { char *s1 = (char *) (buf1 + align1); char *s2 = (char *) (buf2 + align2); static const char d[] = "1234567890abcxyz"; #define dl (sizeof (d) - 1) char *ss2 = s2; for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0) { size_t t = l > dl ? dl : l; ss2 = mempcpy (ss2, d, t); } s2[len2] = '\0'; if (fail) { char *ss1 = s1; for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0) { size_t t = l > dl ? dl : l; memcpy (ss1, d, t); ++ss1[len2 > 7 ? 7 : len2 - 1]; ss1 += t; } } else { memset (s1, '0', len1); for (size_t i = 0; i < len2; ++i) s1[len1 - len2 + i] = toupper (s2[i]); } s1[len1] = '\0'; if (HP_TIMING_AVAIL) printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:", len1, len2, align1, align2, fail ? "fail" : "found"); FOR_EACH_IMPL (impl, 0) do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2); if (HP_TIMING_AVAIL) putchar ('\n'); } static void check1 (void) { const char s1[] = "AOKB"; const char s2[] = "OK"; char *exp_result; exp_result = stupid_strcasestr (s1, s2); FOR_EACH_IMPL (impl, 0) check_result (impl, s1, s2, exp_result); } static int test_main (void) { test_init (); check1 (); printf ("%23s", ""); FOR_EACH_IMPL (impl, 0) printf ("\t%s", impl->name); putchar ('\n'); for (size_t klen = 2; klen < 32; ++klen) for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen) { do_test (0, 0, hlen, klen, 0); do_test (0, 0, hlen, klen, 1); do_test (0, 3, hlen, klen, 0); do_test (0, 3, hlen, klen, 1); do_test (0, 9, hlen, klen, 0); do_test (0, 9, hlen, klen, 1); do_test (0, 15, hlen, klen, 0); do_test (0, 15, hlen, klen, 1); do_test (3, 0, hlen, klen, 0); do_test (3, 0, hlen, klen, 1); do_test (3, 3, hlen, klen, 0); do_test (3, 3, hlen, klen, 1); do_test (3, 9, hlen, klen, 0); do_test (3, 9, hlen, klen, 1); do_test (3, 15, hlen, klen, 0); do_test (3, 15, hlen, klen, 1); do_test (9, 0, hlen, klen, 0); do_test (9, 0, hlen, klen, 1); do_test (9, 3, hlen, klen, 0); do_test (9, 3, hlen, klen, 1); do_test (9, 9, hlen, klen, 0); do_test (9, 9, hlen, klen, 1); do_test (9, 15, hlen, klen, 0); do_test (9, 15, hlen, klen, 1); do_test (15, 0, hlen, klen, 0); do_test (15, 0, hlen, klen, 1); do_test (15, 3, hlen, klen, 0); do_test (15, 3, hlen, klen, 1); do_test (15, 9, hlen, klen, 0); do_test (15, 9, hlen, klen, 1); do_test (15, 15, hlen, klen, 0); do_test (15, 15, hlen, klen, 1); } do_test (0, 0, page_size - 1, 16, 0); do_test (0, 0, page_size - 1, 16, 1); return ret; } #include "../test-skeleton.c"