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Diffstat (limited to 'REORG.TODO/string/test-strchr.c')
| -rw-r--r-- | REORG.TODO/string/test-strchr.c | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/REORG.TODO/string/test-strchr.c b/REORG.TODO/string/test-strchr.c new file mode 100644 index 0000000000..de9a274f7b --- /dev/null +++ b/REORG.TODO/string/test-strchr.c @@ -0,0 +1,296 @@ +/* Test STRCHR functions. + Copyright (C) 1999-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Written by Jakub Jelinek <jakub@redhat.com>, 1999. + Added wcschr support by Liubov Dmitrieva <liubov.dmitrieva@gmail.com>, 2011 + + 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 +#ifndef WIDE +# ifdef USE_FOR_STRCHRNUL +# define TEST_NAME "strchrnul" +# else +# define TEST_NAME "strchr" +# endif /* !USE_FOR_STRCHRNUL */ +#else +# ifdef USE_FOR_STRCHRNUL +# define TEST_NAME "wcschrnul" +# else +# define TEST_NAME "wcschr" +# endif /* !USE_FOR_STRCHRNUL */ +#endif /* WIDE */ +#include "test-string.h" + +#ifndef WIDE +# ifdef USE_FOR_STRCHRNUL +# define STRCHR strchrnul +# define stupid_STRCHR stupid_STRCHRNUL +# define simple_STRCHR simple_STRCHRNUL +# else +# define STRCHR strchr +# endif /* !USE_FOR_STRCHRNUL */ +# define STRLEN strlen +# define CHAR char +# define BIG_CHAR CHAR_MAX +# define MIDDLE_CHAR 127 +# define SMALL_CHAR 23 +# define UCHAR unsigned char +# define L(s) s +#else +# include <wchar.h> +# ifdef USE_FOR_STRCHRNUL +# define STRCHR wcschrnul +# define stupid_STRCHR stupid_WCSCHRNUL +# define simple_STRCHR simple_WCSCHRNUL +# else +# define STRCHR wcschr +# endif /* !USE_FOR_STRCHRNUL */ +# define STRLEN wcslen +# define CHAR wchar_t +# define BIG_CHAR WCHAR_MAX +# define MIDDLE_CHAR 1121 +# define SMALL_CHAR 851 +# define UCHAR wchar_t +# define L(s) L ## s +#endif /* WIDE */ + +#ifdef USE_FOR_STRCHRNUL +# define NULLRET(endptr) endptr +#else +# define NULLRET(endptr) NULL +#endif /* !USE_FOR_STRCHRNUL */ + + +typedef CHAR *(*proto_t) (const CHAR *, int); + +CHAR * +simple_STRCHR (const CHAR *s, int c) +{ + for (; *s != (CHAR) c; ++s) + if (*s == '\0') + return NULLRET ((CHAR *) s); + return (CHAR *) s; +} + +CHAR * +stupid_STRCHR (const CHAR *s, int c) +{ + size_t n = STRLEN (s) + 1; + + while (n--) + if (*s++ == (CHAR) c) + return (CHAR *) s - 1; + return NULLRET ((CHAR *) s - 1); +} + +IMPL (stupid_STRCHR, 0) +IMPL (simple_STRCHR, 0) +IMPL (STRCHR, 1) + +static int +check_result (impl_t *impl, const CHAR *s, int c, const CHAR *exp_res) +{ + CHAR *res = CALL (impl, s, c); + if (res != exp_res) + { + error (0, 0, "Wrong result in function %s %#x %p %p", impl->name, + c, res, exp_res); + ret = 1; + return -1; + } + return 0; +} + +static void +do_one_test (impl_t *impl, const CHAR *s, int c, const CHAR *exp_res) +{ + if (check_result (impl, s, c, exp_res) < 0) + return; +} + +static void +do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char) +/* For wcschr: 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 &= 15; + if ((align + len) * sizeof (CHAR) >= page_size) + return; + + for (i = 0; i < len; ++i) + { + buf[align + i] = 32 + 23 * i % max_char; + if (buf[align + i] == seek_char) + buf[align + i] = seek_char + 1; + else if (buf[align + i] == 0) + buf[align + i] = 1; + } + buf[align + len] = 0; + + if (pos < len) + { + buf[align + pos] = seek_char; + result = buf + align + pos; + } + else if (seek_char == 0) + result = buf + align + len; + else + result = NULLRET (buf + align + len); + + FOR_EACH_IMPL (impl, 0) + do_one_test (impl, buf + align, seek_char, result); +} + +static void +do_random_tests (void) +{ + size_t i, j, n, align, pos, len; + int seek_char; + CHAR *result; + UCHAR *p = (UCHAR *) (buf1 + page_size - 512 * sizeof (CHAR)); + + for (n = 0; n < ITERATIONS; n++) + { + /* For wcschr: align here means align not in bytes, but in wchar_ts, + in bytes it will equal to align * (sizeof (wchar_t)). */ + align = random () & 15; + pos = random () & 511; + seek_char = random () & 255; + if (pos + align >= 511) + pos = 510 - align - (random () & 7); + /* len for wcschr here isn't in bytes but it's number of wchar_t + symbols. */ + len = random () & 511; + if ((pos == len && seek_char) + || (pos > len && (random () & 1))) + len = pos + 1 + (random () & 7); + if (len + align >= 512) + len = 511 - align - (random () & 7); + if (pos == len && seek_char) + len = pos + 1; + j = (pos > len ? pos : len) + align + 64; + if (j > 512) + j = 512; + + for (i = 0; i < j; i++) + { + if (i == pos + align) + p[i] = seek_char; + else if (i == len + align) + p[i] = 0; + else + { + p[i] = random () & 255; + if (i < pos + align && p[i] == seek_char) + p[i] = seek_char + 13; + if (i < len + align && !p[i]) + { + p[i] = seek_char - 13; + if (!p[i]) + p[i] = 140; + } + } + } + + if (pos <= len) + result = (CHAR *) (p + pos + align); + else if (seek_char == 0) + result = (CHAR *) (p + len + align); + else + result = NULLRET ((CHAR *) (p + len + align)); + + FOR_EACH_IMPL (impl, 1) + if (CALL (impl, (CHAR *) (p + align), seek_char) != result) + { + error (0, 0, "Iteration %zd - wrong result in function \ + %s (align in bytes: %zd, seek_char: %d, len: %zd, pos: %zd) %p != %p, p %p", + n, impl->name, align * sizeof (CHAR), seek_char, len, pos, + CALL (impl, (CHAR *) (p + align), seek_char), result, p); + ret = 1; + } + } +} + +static void +check1 (void) +{ + CHAR s[] __attribute__((aligned(16))) = L ("\xff"); + CHAR c = L ('\xfe'); + CHAR *exp_result = stupid_STRCHR (s, c); + + FOR_EACH_IMPL (impl, 0) + check_result (impl, s, c, exp_result); +} + +int +test_main (void) +{ + size_t i; + + test_init (); + + check1 (); + + 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, SMALL_CHAR, MIDDLE_CHAR); + do_test (i, 16 << i, 2048, SMALL_CHAR, MIDDLE_CHAR); + } + + for (i = 1; i < 8; ++i) + { + do_test (i, 64, 256, SMALL_CHAR, MIDDLE_CHAR); + do_test (i, 64, 256, SMALL_CHAR, BIG_CHAR); + } + + for (i = 0; i < 32; ++i) + { + do_test (0, i, i + 1, SMALL_CHAR, MIDDLE_CHAR); + do_test (0, i, i + 1, SMALL_CHAR, BIG_CHAR); + } + + for (i = 1; i < 8; ++i) + { + do_test (0, 16 << i, 2048, 0, MIDDLE_CHAR); + do_test (i, 16 << i, 2048, 0, MIDDLE_CHAR); + } + + for (i = 1; i < 8; ++i) + { + do_test (i, 64, 256, 0, MIDDLE_CHAR); + do_test (i, 64, 256, 0, BIG_CHAR); + } + + for (i = 0; i < 32; ++i) + { + do_test (0, i, i + 1, 0, MIDDLE_CHAR); + do_test (0, i, i + 1, 0, BIG_CHAR); + } + + do_random_tests (); + return ret; +} + +#include <support/test-driver.c> |