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-rw-r--r--string/test-strncmp.c479
1 files changed, 0 insertions, 479 deletions
diff --git a/string/test-strncmp.c b/string/test-strncmp.c
deleted file mode 100644
index fe3c4e3320..0000000000
--- a/string/test-strncmp.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/* Test strncmp and wcsncmp 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/>. */
-
-#define TEST_MAIN
-#ifdef WIDE
-# define TEST_NAME "wcsncmp"
-#else
-# define TEST_NAME "strncmp"
-#endif
-#include "test-string.h"
-
-#ifdef WIDE
-# include <wchar.h>
-
-# define L(str) L##str
-# define STRNCMP wcsncmp
-# define STRCPY wcscpy
-# define STRDUP wcsdup
-# define MEMCPY wmemcpy
-# define SIMPLE_STRNCMP simple_wcsncmp
-# define STUPID_STRNCMP stupid_wcsncmp
-# define CHAR wchar_t
-# define UCHAR wchar_t
-# define CHARBYTES 4
-# define CHAR__MAX WCHAR_MAX
-# define CHAR__MIN WCHAR_MIN
-
-/* Wcsncmp uses signed semantics for comparison, not unsigned.
- Avoid using substraction since possible overflow */
-int
-simple_wcsncmp (const CHAR *s1, const CHAR *s2, size_t n)
-{
- wchar_t c1, c2;
-
- while (n--)
- {
- c1 = *s1++;
- c2 = *s2++;
- if (c1 == L('\0') || c1 != c2)
- return c1 > c2 ? 1 : (c1 < c2 ? -1 : 0);
- }
- return 0;
-}
-
-int
-stupid_wcsncmp (const CHAR *s1, const CHAR *s2, size_t n)
-{
- wchar_t c1, c2;
- size_t ns1 = wcsnlen (s1, n) + 1, ns2 = wcsnlen (s2, n) + 1;
-
- n = ns1 < n ? ns1 : n;
- n = ns2 < n ? ns2 : n;
-
- while (n--)
- {
- c1 = *s1++;
- c2 = *s2++;
- if (c1 != c2)
- return c1 > c2 ? 1 : -1;
- }
- return 0;
-}
-
-#else
-# define L(str) str
-# define STRNCMP strncmp
-# define STRCPY strcpy
-# define STRDUP strdup
-# define MEMCPY memcpy
-# define SIMPLE_STRNCMP simple_strncmp
-# define STUPID_STRNCMP stupid_strncmp
-# define CHAR char
-# define UCHAR unsigned char
-# define CHARBYTES 1
-# define CHAR__MAX CHAR_MAX
-# define CHAR__MIN CHAR_MIN
-
-/* Strncmp uses unsigned semantics for comparison. */
-int
-simple_strncmp (const char *s1, const char *s2, size_t n)
-{
- int ret = 0;
-
- while (n-- && (ret = *(unsigned char *) s1 - * (unsigned char *) s2++) == 0
- && *s1++);
- return ret;
-}
-
-int
-stupid_strncmp (const char *s1, const char *s2, size_t n)
-{
- size_t ns1 = strnlen (s1, n) + 1, ns2 = strnlen (s2, n) + 1;
- int ret = 0;
-
- n = ns1 < n ? ns1 : n;
- n = ns2 < n ? ns2 : n;
- while (n-- && (ret = *(unsigned char *) s1++ - * (unsigned char *) s2++) == 0);
- return ret;
-}
-
-#endif
-
-typedef int (*proto_t) (const CHAR *, const CHAR *, size_t);
-
-IMPL (STUPID_STRNCMP, 0)
-IMPL (SIMPLE_STRNCMP, 0)
-IMPL (STRNCMP, 1)
-
-
-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_limit (size_t align1, size_t align2, size_t len, size_t n, int max_char,
- int exp_result)
-{
- size_t i, align_n;
- CHAR *s1, *s2;
-
- align1 &= ~(CHARBYTES - 1);
- align2 &= ~(CHARBYTES - 1);
-
- if (n == 0)
- {
- s1 = (CHAR *) (buf1 + page_size);
- s2 = (CHAR *) (buf2 + page_size);
-
- FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s1, s2, n, 0);
-
- return;
- }
-
- align1 &= 15;
- align2 &= 15;
- align_n = (page_size - n * CHARBYTES) & 15;
-
- s1 = (CHAR *) (buf1 + page_size - n * CHARBYTES);
- s2 = (CHAR *) (buf2 + page_size - n * CHARBYTES);
-
- if (align1 < align_n)
- s1 = (CHAR *) ((char *) s1 - (align_n - align1));
-
- if (align2 < align_n)
- s2 = (CHAR *) ((char *) s2 - (align_n - align2));
-
- for (i = 0; i < n; i++)
- s1[i] = s2[i] = 1 + 23 * i % max_char;
-
- if (len < n)
- {
- s1[len] = 0;
- s2[len] = 0;
- if (exp_result < 0)
- s2[len] = 32;
- else if (exp_result > 0)
- s1[len] = 64;
- }
-
- FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s1, s2, n, exp_result);
-}
-
-static void
-do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
- int exp_result)
-{
- size_t i;
- CHAR *s1, *s2;
-
- align1 &= ~(CHARBYTES - 1);
- align2 &= ~(CHARBYTES - 1);
-
- if (n == 0)
- return;
-
- align1 &= 63;
- if (align1 + (n + 1) * CHARBYTES >= page_size)
- return;
-
- align2 &= 63;
- if (align2 + (n + 1) * CHARBYTES >= page_size)
- return;
-
- s1 = (CHAR *) (buf1 + align1);
- s2 = (CHAR *) (buf2 + align2);
-
- for (i = 0; i < n; i++)
- s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char;
-
- s1[n] = 24 + exp_result;
- s2[n] = 23;
- s1[len] = 0;
- s2[len] = 0;
- if (exp_result < 0)
- s2[len] = 32;
- else if (exp_result > 0)
- s1[len] = 64;
- if (len >= n)
- s2[n - 1] -= exp_result;
-
- FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s1, s2, n, exp_result);
-}
-
-static void
-do_page_test (size_t offset1, size_t offset2, CHAR *s2)
-{
- CHAR *s1;
- int exp_result;
-
- if (offset1 * CHARBYTES >= page_size || offset2 * CHARBYTES >= page_size)
- return;
-
- s1 = (CHAR *) buf1;
- s1 += offset1;
- s2 += offset2;
-
- exp_result= *s1;
-
- FOR_EACH_IMPL (impl, 0)
- {
- check_result (impl, s1, s2, page_size, -exp_result);
- check_result (impl, s2, s1, page_size, exp_result);
- }
-}
-
-static void
-do_random_tests (void)
-{
- size_t i, j, n, align1, align2, pos, len1, len2, size;
- int result;
- long r;
- UCHAR *p1 = (UCHAR *) (buf1 + page_size - 512 * CHARBYTES);
- UCHAR *p2 = (UCHAR *) (buf2 + page_size - 512 * CHARBYTES);
-
- for (n = 0; n < ITERATIONS; n++)
- {
- align1 = random () & 31;
- if (random () & 1)
- align2 = random () & 31;
- else
- align2 = align1 + (random () & 24);
- pos = random () & 511;
- size = 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] = random () & 255;
- if (i < len1 + align1 && !p1[i])
- {
- p1[i] = random () & 255;
- if (!p1[i])
- p1[i] = 1 + (random () & 127);
- }
- }
- for (i = 0; i < j; ++i)
- {
- p2[i] = random () & 255;
- if (i < len2 + align2 && !p2[i])
- {
- p2[i] = random () & 255;
- if (!p2[i])
- p2[i] = 1 + (random () & 127);
- }
- }
-
- result = 0;
- MEMCPY (p2 + align2, p1 + align1, pos);
- if (pos < len1)
- {
- if (p2[align2 + pos] == p1[align1 + pos])
- {
- p2[align2 + pos] = random () & 255;
- if (p2[align2 + pos] == p1[align1 + pos])
- p2[align2 + pos] = p1[align1 + pos] + 3 + (random () & 127);
- }
-
- if (pos < size)
- {
- if (p1[align1 + pos] < 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), size);
- /* 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, %zd) %ld != %d, p1 %p p2 %p",
- n, impl->name, align1, align2, len1, len2, pos, size, r, result, p1, p2);
- ret = 1;
- }
- }
- }
-}
-
-static void
-check1 (void)
-{
- CHAR *s1 = (CHAR *) (buf1 + 0xb2c);
- CHAR *s2 = (CHAR *) (buf1 + 0xfd8);
- size_t i, offset;
- int exp_result;
-
- STRCPY(s1, L("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrs"));
- STRCPY(s2, L("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijkLMNOPQRSTUV"));
-
- /* Check possible overflow bug for wcsncmp */
- s1[4] = CHAR__MAX;
- s2[4] = CHAR__MIN;
-
- for (offset = 0; offset < 6; offset++)
- {
- for (i = 0; i < 80; i++)
- {
- exp_result = SIMPLE_STRNCMP (s1 + offset, s2 + offset, i);
- FOR_EACH_IMPL (impl, 0)
- check_result (impl, s1 + offset, s2 + offset, i, exp_result);
- }
- }
-}
-
-static void
-check2 (void)
-{
- size_t i;
- CHAR *s1, *s2;
-
- s1 = (CHAR *) buf1;
- for (i = 0; i < (page_size / CHARBYTES) - 1; i++)
- s1[i] = 23;
- s1[i] = 0;
-
- s2 = STRDUP (s1);
-
- for (i = 0; i < 64; ++i)
- do_page_test ((3988 / CHARBYTES) + i, (2636 / CHARBYTES), s2);
-
- free (s2);
-}
-
-int
-test_main (void)
-{
- size_t i;
-
- test_init ();
-
- check1 ();
- check2 ();
-
- printf ("%23s", "");
- FOR_EACH_IMPL (impl, 0)
- printf ("\t%s", impl->name);
- putchar ('\n');
-
- for (i =0; i < 16; ++i)
- {
- do_test (0, 0, 8, i, 127, 0);
- do_test (0, 0, 8, i, 127, -1);
- do_test (0, 0, 8, i, 127, 1);
- do_test (i, i, 8, i, 127, 0);
- do_test (i, i, 8, i, 127, 1);
- do_test (i, i, 8, i, 127, -1);
- do_test (i, 2 * i, 8, i, 127, 0);
- do_test (2 * i, i, 8, i, 127, 1);
- do_test (i, 3 * i, 8, i, 127, -1);
- do_test (0, 0, 8, i, 255, 0);
- do_test (0, 0, 8, i, 255, -1);
- do_test (0, 0, 8, i, 255, 1);
- do_test (i, i, 8, i, 255, 0);
- do_test (i, i, 8, i, 255, 1);
- do_test (i, i, 8, i, 255, -1);
- do_test (i, 2 * i, 8, i, 255, 0);
- do_test (2 * i, i, 8, i, 255, 1);
- do_test (i, 3 * i, 8, i, 255, -1);
- }
-
- for (i = 1; i < 8; ++i)
- {
- do_test (0, 0, 8 << i, 16 << i, 127, 0);
- do_test (0, 0, 8 << i, 16 << i, 127, 1);
- do_test (0, 0, 8 << i, 16 << i, 127, -1);
- do_test (0, 0, 8 << i, 16 << i, 255, 0);
- do_test (0, 0, 8 << i, 16 << i, 255, 1);
- do_test (0, 0, 8 << i, 16 << i, 255, -1);
- do_test (8 - i, 2 * i, 8 << i, 16 << i, 127, 0);
- do_test (8 - i, 2 * i, 8 << i, 16 << i, 127, 1);
- do_test (2 * i, i, 8 << i, 16 << i, 255, 0);
- do_test (2 * i, i, 8 << i, 16 << i, 255, 1);
- }
-
- do_test_limit (0, 0, 0, 0, 127, 0);
- do_test_limit (4, 0, 21, 20, 127, 0);
- do_test_limit (0, 4, 21, 20, 127, 0);
- do_test_limit (8, 0, 25, 24, 127, 0);
- do_test_limit (0, 8, 25, 24, 127, 0);
-
- for (i = 0; i < 8; ++i)
- {
- do_test_limit (0, 0, 17 - i, 16 - i, 127, 0);
- do_test_limit (0, 0, 17 - i, 16 - i, 255, 0);
- do_test_limit (0, 0, 15 - i, 16 - i, 127, 0);
- do_test_limit (0, 0, 15 - i, 16 - i, 127, 1);
- do_test_limit (0, 0, 15 - i, 16 - i, 127, -1);
- do_test_limit (0, 0, 15 - i, 16 - i, 255, 0);
- do_test_limit (0, 0, 15 - i, 16 - i, 255, 1);
- do_test_limit (0, 0, 15 - i, 16 - i, 255, -1);
- }
-
- do_random_tests ();
- return ret;
-}
-
-#include <support/test-driver.c>
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