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Diffstat (limited to 'string/test-strspn.c')
| -rw-r--r-- | string/test-strspn.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/string/test-strspn.c b/string/test-strspn.c new file mode 100644 index 0000000000..00e30b4657 --- /dev/null +++ b/string/test-strspn.c @@ -0,0 +1,213 @@ +/* Test and measure strspn functions. + Copyright (C) 1999, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Written by Jakub Jelinek <jakub@redhat.com>, 1999. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define TEST_MAIN +#include "test-string.h" + +typedef size_t (*proto_t) (const char *, const char *); +size_t simple_strspn (const char *, const char *); + +IMPL (simple_strspn, 0) +IMPL (strspn, 1) + +size_t +simple_strspn (const char *s, const char *rej) +{ + const char *r, *str = s; + char c; + + while ((c = *s++) != '\0') + { + for (r = rej; *r != '\0'; ++r) + if (*r == c) + break; + if (*r == '\0') + return s - str - 1; + } + return s - str - 1; +} + +static void +do_one_test (impl_t *impl, const char *s, const char *acc, size_t exp_res) +{ + size_t res = CALL (impl, s, acc); + if (res != exp_res) + { + error (0, 0, "Wrong result in function %s %p %p", impl->name, + (void *) res, (void *) exp_res); + ret = 1; + return; + } + + if (HP_TIMING_AVAIL) + { + hp_timing_t start, stop, best_time = ~ (hp_timing_t) 0; + size_t i; + + for (i = 0; i < 32; ++i) + { + HP_TIMING_NOW (start); + CALL (impl, s, acc); + HP_TIMING_NOW (stop); + HP_TIMING_BEST (best_time, start, stop); + } + + printf ("\t%zd", (size_t) best_time); + } +} + +static void +do_test (size_t align, size_t pos, size_t len) +{ + size_t i; + char *acc, *s; + + align &= 7; + if (align + pos >= page_size || len > 240 || ! len) + return; + + acc = buf2 + (random () & 255); + s = buf1 + align; + + for (i = 0; i < len; ++i) + { + acc[i] = random () & 255; + if (!acc[i]) + acc[i] = random () & 255; + if (!acc[i]) + acc[i] = 1 + (random () & 127); + } + acc[len] = '\0'; + + for (i = 0; i < pos; ++i) + s[i] = acc[random () % len]; + s[pos] = random () & 255; + if (strchr (acc, s[pos])) + s[pos] = '\0'; + + if (HP_TIMING_AVAIL) + printf ("Length %4zd, alignment %2zd, acc len %2zd:", pos, align, len); + + FOR_EACH_IMPL (impl, 0) + do_one_test (impl, s, acc, pos); + + if (HP_TIMING_AVAIL) + putchar ('\n'); +} + +static void +do_random_tests (void) +{ + size_t i, j, n, align, pos, len; + unsigned char *p = buf1 + page_size - 512; + unsigned char *acc; + + for (n = 0; n < ITERATIONS; n++) + { + align = random () & 15; + if (random () & 1) + len = random () & 63; + else + len = random () & 15; + if (!len) + pos = 0; + else + pos = random () & 511; + if (pos + align >= 511) + pos = 510 - align - (random () & 7); + acc = buf2 + page_size - len - 1 - (random () & 7); + for (i = 0; i < len; ++i) + { + acc[i] = random () & 255; + if (!acc[i]) + acc[i] = random () & 255; + if (!acc[i]) + acc[i] = 1 + (random () & 127); + } + acc[i] = '\0'; + j = pos + align + 64; + if (j > 512) + j = 512; + + for (i = 0; i < j; i++) + { + if (i == pos + align) + { + if ((random () & 7) == 0) + p[i] = '\0'; + else + { + p[i] = random () & 255; + if (strchr (acc, p[i])) + p[i] = '\0'; + } + } + else if (i < align || i > pos + align) + p[i] = random () & 255; + else + p[i] = acc [random () % len]; + } + + FOR_EACH_IMPL (impl, 1) + if (CALL (impl, p + align, acc) != pos) + { + error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd) %zd != %zd", + n, impl->name, align, acc, len, + CALL (impl, p + align, acc), pos); + ret = 1; + } + } +} + +int +test_main (void) +{ + size_t i; + + test_init (); + + printf ("%32s", ""); + FOR_EACH_IMPL (impl, 0) + printf ("\t%s", impl->name); + putchar ('\n'); + + for (i = 0; i < 32; ++i) + { + do_test (0, 512, i); + do_test (i, 512, i); + } + + for (i = 1; i < 8; ++i) + { + do_test (0, 16 << i, 4); + do_test (i, 16 << i, 4); + } + + for (i = 1; i < 8; ++i) + do_test (i, 64, 10); + + for (i = 0; i < 64; ++i) + do_test (0, i, 6); + + do_random_tests (); + return ret; +} + +#include "../test-skeleton.c" |