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Diffstat (limited to 'REORG.TODO/string/test-strncasecmp.c')
| -rw-r--r-- | REORG.TODO/string/test-strncasecmp.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/REORG.TODO/string/test-strncasecmp.c b/REORG.TODO/string/test-strncasecmp.c new file mode 100644 index 0000000000..bf501cf798 --- /dev/null +++ b/REORG.TODO/string/test-strncasecmp.c @@ -0,0 +1,353 @@ +/* Test and measure strncasecmp 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. + + 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/>. */ + +#include <locale.h> +#include <ctype.h> +#define TEST_MAIN +#define TEST_NAME "strncasecmp" +#include "test-string.h" + +typedef int (*proto_t) (const char *, const char *, size_t); +static int simple_strncasecmp (const char *, const char *, size_t); +static int stupid_strncasecmp (const char *, const char *, size_t); + +IMPL (stupid_strncasecmp, 0) +IMPL (simple_strncasecmp, 0) +IMPL (strncasecmp, 1) + +static int +simple_strncasecmp (const char *s1, const char *s2, size_t n) +{ + int ret; + + if (n == 0) + return 0; + + while ((ret = ((unsigned char) tolower (*s1) + - (unsigned char) tolower (*s2))) == 0 + && *s1++) + { + if (--n == 0) + return 0; + ++s2; + } + return ret; +} + +static int +stupid_strncasecmp (const char *s1, const char *s2, size_t max) +{ + size_t ns1 = strlen (s1) + 1; + size_t ns2 = strlen (s2) + 1; + size_t n = ns1 < ns2 ? ns1 : ns2; + if (n > max) + n = max; + int ret = 0; + + while (n--) + { + if ((ret = ((unsigned char) tolower (*s1) + - (unsigned char) tolower (*s2))) != 0) + break; + ++s1; + ++s2; + } + return ret; +} + +static int +check_result (impl_t *impl, const char *s1, const char *s2, size_t n, + int exp_result) +{ + int result = CALL (impl, s1, s2, n); + if ((exp_result == 0 && result != 0) + || (exp_result < 0 && result >= 0) + || (exp_result > 0 && result <= 0)) + { + error (0, 0, "Wrong result in function %s %d %d", 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, size_t n, + int exp_result) +{ + if (check_result (impl, s1, s2, n, exp_result) < 0) + return; +} + +static void +do_test (size_t align1, size_t align2, size_t n, size_t len, int max_char, + int exp_result) +{ + size_t i; + char *s1, *s2; + + if (len == 0) + return; + + align1 &= 7; + if (align1 + len + 1 >= page_size) + return; + + align2 &= 7; + if (align2 + len + 1 >= page_size) + return; + + s1 = (char *) (buf1 + align1); + s2 = (char *) (buf2 + align2); + + for (i = 0; i < len; i++) + { + s1[i] = toupper (1 + 23 * i % max_char); + s2[i] = tolower (s1[i]); + } + + s1[len] = s2[len] = 0; + s1[len + 1] = 23; + s2[len + 1] = 24 + exp_result; + if ((s2[len - 1] == 'z' && exp_result == -1) + || (s2[len - 1] == 'a' && exp_result == 1)) + s1[len - 1] += exp_result; + else + s2[len - 1] -= exp_result; + + FOR_EACH_IMPL (impl, 0) + do_one_test (impl, s1, s2, n, exp_result); +} + +static void +do_random_tests (void) +{ + size_t i, j, n, align1, align2, pos, len1, len2; + int result; + long r; + unsigned char *p1 = buf1 + page_size - 512; + unsigned char *p2 = buf2 + page_size - 512; + + for (n = 0; n < ITERATIONS; n++) + { + align1 = random () & 31; + if (random () & 1) + align2 = random () & 31; + else + align2 = align1 + (random () & 24); + pos = random () & 511; + j = align1 > align2 ? align1 : align2; + if (pos + j >= 511) + pos = 510 - j - (random () & 7); + len1 = random () & 511; + if (pos >= len1 && (random () & 1)) + len1 = pos + (random () & 7); + if (len1 + j >= 512) + len1 = 511 - j - (random () & 7); + if (pos >= len1) + len2 = len1; + else + len2 = len1 + (len1 != 511 - j ? random () % (511 - j - len1) : 0); + j = (pos > len2 ? pos : len2) + align1 + 64; + if (j > 512) + j = 512; + for (i = 0; i < j; ++i) + { + p1[i] = tolower (random () & 255); + if (i < len1 + align1 && !p1[i]) + { + p1[i] = tolower (random () & 255); + if (!p1[i]) + p1[i] = tolower (1 + (random () & 127)); + } + } + for (i = 0; i < j; ++i) + { + p2[i] = toupper (random () & 255); + if (i < len2 + align2 && !p2[i]) + { + p2[i] = toupper (random () & 255); + if (!p2[i]) + toupper (p2[i] = 1 + (random () & 127)); + } + } + + result = 0; + memcpy (p2 + align2, p1 + align1, pos); + if (pos < len1) + { + if (tolower (p2[align2 + pos]) == p1[align1 + pos]) + { + p2[align2 + pos] = toupper (random () & 255); + if (tolower (p2[align2 + pos]) == p1[align1 + pos]) + p2[align2 + pos] = toupper (p1[align1 + pos] + + 3 + (random () & 127)); + } + + if (p1[align1 + pos] < tolower (p2[align2 + pos])) + result = -1; + else + result = 1; + } + p1[len1 + align1] = 0; + p2[len2 + align2] = 0; + + FOR_EACH_IMPL (impl, 1) + { + r = CALL (impl, (char *) (p1 + align1), (char *) (p2 + align2), + pos + 1 + (random () & 255)); + /* Test whether on 64-bit architectures where ABI requires + callee to promote has the promotion been done. */ + asm ("" : "=g" (r) : "0" (r)); + if ((r == 0 && result) + || (r < 0 && result >= 0) + || (r > 0 && result <= 0)) + { + error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd, %zd, %zd) %ld != %d, p1 %p p2 %p", + n, impl->name, align1, align2, len1, len2, pos, r, result, p1, p2); + ret = 1; + } + } + } +} + +/* Regression test for BZ #12205 */ +static void +bz12205 (void) +{ + static char cp [4096+16] __attribute__ ((aligned(4096))); + static char gotrel[4096] __attribute__ ((aligned(4096))); + char *s1 = cp + 0xffa; + char *s2 = gotrel + 0xcbe; + int exp_result; + size_t n = 6; + + strcpy (s1, "gottpoff"); + strcpy (s2, "GOTPLT"); + + exp_result = simple_strncasecmp (s1, s2, n); + FOR_EACH_IMPL (impl, 0) + check_result (impl, s1, s2, n, exp_result); +} + +/* Regression test for BZ #14195 */ +static void +bz14195 (void) +{ + const char *empty_string = ""; + FOR_EACH_IMPL (impl, 0) + check_result (impl, empty_string, "", 5, 0); +} + +static void +test_locale (const char *locale) +{ + size_t i; + + if (setlocale (LC_CTYPE, locale) == NULL) + { + error (0, 0, "cannot set locale \"%s\"", locale); + ret = 1; + } + + bz12205 (); + bz14195 (); + + printf ("%23s", locale); + FOR_EACH_IMPL (impl, 0) + printf ("\t%s", impl->name); + putchar ('\n'); + + for (i = 1; i < 16; ++i) + { + do_test (i, i, i - 1, i, 127, 0); + + do_test (i, i, i, i, 127, 0); + do_test (i, i, i, i, 127, 1); + do_test (i, i, i, i, 127, -1); + + do_test (i, i, i + 1, i, 127, 0); + do_test (i, i, i + 1, i, 127, 1); + do_test (i, i, i + 1, i, 127, -1); + } + + for (i = 1; i < 10; ++i) + { + do_test (0, 0, (2 << i) - 1, 2 << i, 127, 0); + do_test (0, 0, 2 << i, 2 << i, 254, 0); + do_test (0, 0, (2 << i) + 1, 2 << i, 127, 0); + + do_test (0, 0, (2 << i) + 1, 2 << i, 254, 0); + + do_test (0, 0, 2 << i, 2 << i, 127, 1); + do_test (0, 0, (2 << i) + 10, 2 << i, 127, 1); + + do_test (0, 0, 2 << i, 2 << i, 254, 1); + do_test (0, 0, (2 << i) + 10, 2 << i, 254, 1); + + do_test (0, 0, 2 << i, 2 << i, 127, -1); + do_test (0, 0, (2 << i) + 10, 2 << i, 127, -1); + + do_test (0, 0, 2 << i, 2 << i, 254, -1); + do_test (0, 0, (2 << i) + 10, 2 << i, 254, -1); + } + + for (i = 1; i < 8; ++i) + { + do_test (i, 2 * i, (8 << i) - 1, 8 << i, 127, 0); + do_test (i, 2 * i, 8 << i, 8 << i, 127, 0); + do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, 0); + + do_test (2 * i, i, (8 << i) - 1, 8 << i, 254, 0); + do_test (2 * i, i, 8 << i, 8 << i, 254, 0); + do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, 0); + + do_test (i, 2 * i, 8 << i, 8 << i, 127, 1); + do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, 1); + + do_test (2 * i, i, 8 << i, 8 << i, 254, 1); + do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, 1); + + do_test (i, 2 * i, 8 << i, 8 << i, 127, -1); + do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, -1); + + do_test (2 * i, i, 8 << i, 8 << i, 254, -1); + do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, -1); + } + + do_random_tests (); +} + +int +test_main (void) +{ + test_init (); + + test_locale ("C"); + test_locale ("en_US.ISO-8859-1"); + test_locale ("en_US.UTF-8"); + test_locale ("tr_TR.ISO-8859-9"); + test_locale ("tr_TR.UTF-8"); + + return ret; +} + +#include <support/test-driver.c> |