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202 lines
4.5 KiB
C
202 lines
4.5 KiB
C
/* Test and measure strdup functions.
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <support/check.h>
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#ifdef WIDE
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# include <wchar.h>
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# define CHAR wchar_t
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# define sfmt "ls"
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# define BIG_CHAR WCHAR_MAX
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# define SMALL_CHAR 1273
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# define STRCMP wcscmp
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# define MEMCMP wmemcmp
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# define MEMSET wmemset
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# define TCS TEST_COMPARE_STRING_WIDE
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#else
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# define CHAR char
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# define sfmt "s"
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# define BIG_CHAR CHAR_MAX
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# define SMALL_CHAR 127
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# define STRCMP strcmp
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# define MEMCMP memcmp
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# define MEMSET memset
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# define TCS TEST_COMPARE_STRING
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#endif
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#ifndef STRDUP_RESULT
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# define STRDUP_RESULT(dst, len) dst
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# define TEST_MAIN
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# ifndef WIDE
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# define TEST_NAME "strdup"
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# else
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# define TEST_NAME "wcsdup"
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# endif
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# include "test-string.h"
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# ifndef WIDE
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# define STRDUP strdup
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# else
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# define STRDUP wcsdup
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# endif
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#endif
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typedef CHAR *(*proto_t) (const CHAR *);
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static void
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do_zero_len_test (void)
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{
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CHAR src[1] = { '\0' };
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CHAR *dst = STRDUP (src);
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TCS (dst, src);
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free (dst);
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}
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static void
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do_one_test (const CHAR *src,
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size_t len __attribute__((unused)))
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{
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CHAR *dst = STRDUP (src);
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if (STRCMP (dst, src) != 0)
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{
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error (0, 0,
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"Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
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TEST_NAME, dst, src);
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ret = 1;
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free (dst);
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return;
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}
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free (dst);
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}
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static void
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do_test (size_t align1, size_t align2, size_t len, int max_char)
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{
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size_t i;
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CHAR *s1;
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/* For wcsdup: align1 and align2 here mean alignment not in bytes,
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but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
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len for wcschr here isn't in bytes but it's number of wchar_t symbols. */
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align1 &= 7;
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if ((align1 + len) * sizeof (CHAR) >= page_size)
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return;
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align2 &= 7;
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if ((align2 + len) * sizeof (CHAR) >= page_size)
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return;
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s1 = (CHAR *) (buf1) + align1;
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for (i = 0; i < len; i++)
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s1[i] = 32 + 23 * i % (max_char - 32);
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s1[len] = 0;
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do_one_test (s1, len);
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}
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static void
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do_random_tests (void)
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{
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size_t i, j, n, align1, align2, len;
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CHAR *p1 = (CHAR *)(buf1 + page_size) - 512;
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CHAR *res;
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for (n = 0; n < ITERATIONS; n++)
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{
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/* align1 and align2 are expressed as wchar_t and not in bytes for wide
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char test, and thus it will be equal to align times wchar_t size.
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For non wide version we need to check all alignments from 0 to 63
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since some assembly implementations have separate prolog for alignments
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more 48. */
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align1 = random () & (63 / sizeof (CHAR));
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if (random () & 1)
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align2 = random () & (63 / sizeof (CHAR));
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else
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align2 = align1 + (random () & 24);
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len = random () & 511;
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j = align1;
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if (align2 > j)
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j = align2;
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if (len + j >= 511)
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len = 510 - j - (random () & 7);
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j = len + align1 + 64;
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if (j > 512)
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j = 512;
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for (i = 0; i < j; i++)
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{
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if (i == len + align1)
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p1[i] = 0;
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else
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{
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p1[i] = random () & BIG_CHAR;
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if (i >= align1 && i < len + align1 && !p1[i])
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p1[i] = (random () & SMALL_CHAR) + 3;
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}
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}
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res = STRDUP(p1 + align1);
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TCS (res, (p1 + align1));
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free (res);
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}
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}
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int
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test_main (void)
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{
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size_t i;
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test_init ();
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printf ("%23s", "");
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printf ("\t%s", TEST_NAME);
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putchar ('\n');
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for (i = 0; i < 16; ++i)
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{
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do_test (0, 0, i, SMALL_CHAR);
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do_test (0, 0, i, BIG_CHAR);
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do_test (0, i, i, SMALL_CHAR);
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do_test (i, 0, i, BIG_CHAR);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (0, 0, 8 << i, SMALL_CHAR);
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do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (i, 2 * i, 8 << i, SMALL_CHAR);
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do_test (2 * i, i, 8 << i, BIG_CHAR);
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do_test (i, i, 8 << i, SMALL_CHAR);
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do_test (i, i, 8 << i, BIG_CHAR);
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}
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do_zero_len_test ();
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do_random_tests ();
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return ret;
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}
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#include <support/test-driver.c>
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