| /* Measure STRCHR functions. |
| Copyright (C) 2013-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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 |
| #ifdef WIDE |
| # define TEST_NAME "wcsrchr" |
| #else |
| # define TEST_NAME "strrchr" |
| #endif |
| #include "bench-string.h" |
| |
| #ifdef WIDE |
| # include <wchar.h> |
| # define SIMPLE_STRRCHR simple_wcsrchr |
| # define STRRCHR wcsrchr |
| # define CHAR wchar_t |
| # define UCHAR wchar_t |
| # define BIG_CHAR WCHAR_MAX |
| # define SMALL_CHAR 1273 |
| #else |
| # define SIMPLE_STRRCHR simple_strrchr |
| # define STRRCHR strrchr |
| # define CHAR char |
| # define UCHAR unsigned char |
| # define BIG_CHAR CHAR_MAX |
| # define SMALL_CHAR 127 |
| #endif |
| |
| typedef CHAR *(*proto_t) (const CHAR *, int); |
| CHAR *SIMPLE_STRRCHR (const CHAR *, int); |
| |
| IMPL (SIMPLE_STRRCHR, 0) |
| IMPL (STRRCHR, 1) |
| |
| CHAR * |
| SIMPLE_STRRCHR (const CHAR *s, int c) |
| { |
| const CHAR *ret = NULL; |
| |
| for (; *s != '\0'; ++s) |
| if (*s == (CHAR) c) |
| ret = s; |
| |
| return (CHAR *) (c == '\0' ? s : ret); |
| } |
| |
| static void |
| do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res) |
| { |
| CHAR *res = CALL (impl, s, c); |
| size_t i, iters = INNER_LOOP_ITERS; |
| timing_t start, stop, cur; |
| |
| if (res != exp_res) |
| { |
| error (0, 0, "Wrong result in function %s %p %p", impl->name, |
| res, exp_res); |
| ret = 1; |
| return; |
| } |
| |
| TIMING_NOW (start); |
| for (i = 0; i < iters; ++i) |
| { |
| CALL (impl, s, c); |
| } |
| TIMING_NOW (stop); |
| |
| TIMING_DIFF (cur, start, stop); |
| |
| TIMING_PRINT_MEAN ((double) cur, (double) iters); |
| } |
| |
| static void |
| do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) |
| /* For wcsrchr: align here means align not in bytes, |
| but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) |
| len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ |
| { |
| size_t i; |
| CHAR *result; |
| CHAR *buf = (CHAR *) buf1; |
| |
| align &= 7; |
| if ( (align + len) * sizeof(CHAR) >= page_size) |
| return; |
| |
| for (i = 0; i < len; ++i) |
| { |
| buf[align + i] = (random () * random ()) & max_char; |
| if (!buf[align + i]) |
| buf[align + i] = (random () * random ()) & max_char; |
| if (!buf[align + i]) |
| buf[align + i] = 1; |
| if ((i > pos || pos >= len) && buf[align + i] == seek_char) |
| buf[align + i] = seek_char + 10 + (random () & 15); |
| } |
| buf[align + len] = 0; |
| |
| if (pos < len) |
| { |
| buf[align + pos] = seek_char; |
| result = (CHAR *) (buf + align + pos); |
| } |
| else if (seek_char == 0) |
| result = (CHAR *) (buf + align + len); |
| else |
| result = NULL; |
| |
| printf ("Length %4zd, alignment in bytes %2zd:", pos, align * sizeof(CHAR)); |
| |
| FOR_EACH_IMPL (impl, 0) |
| do_one_test (impl, (CHAR *) (buf + align), seek_char, result); |
| |
| putchar ('\n'); |
| } |
| |
| int |
| test_main (void) |
| { |
| size_t i; |
| |
| test_init (); |
| |
| printf ("%20s", ""); |
| FOR_EACH_IMPL (impl, 0) |
| printf ("\t%s", impl->name); |
| putchar ('\n'); |
| |
| for (i = 1; i < 8; ++i) |
| { |
| do_test (0, 16 << i, 2048, 23, SMALL_CHAR); |
| do_test (i, 16 << i, 2048, 23, SMALL_CHAR); |
| } |
| |
| for (i = 1; i < 8; ++i) |
| { |
| do_test (i, 64, 256, 23, SMALL_CHAR); |
| do_test (i, 64, 256, 23, BIG_CHAR); |
| } |
| |
| for (i = 0; i < 32; ++i) |
| { |
| do_test (0, i, i + 1, 23, SMALL_CHAR); |
| do_test (0, i, i + 1, 23, BIG_CHAR); |
| } |
| |
| for (i = 1; i < 8; ++i) |
| { |
| do_test (0, 16 << i, 2048, 0, SMALL_CHAR); |
| do_test (i, 16 << i, 2048, 0, SMALL_CHAR); |
| } |
| |
| for (i = 1; i < 8; ++i) |
| { |
| do_test (i, 64, 256, 0, SMALL_CHAR); |
| do_test (i, 64, 256, 0, BIG_CHAR); |
| } |
| |
| for (i = 0; i < 32; ++i) |
| { |
| do_test (0, i, i + 1, 0, SMALL_CHAR); |
| do_test (0, i, i + 1, 0, BIG_CHAR); |
| } |
| |
| return ret; |
| } |
| |
| #include "../test-skeleton.c" |