[thirdparty/glibc.git] / string / test-strspn.c

/* Test and measure strspn functions.
   Copyright (C) 1999-2025 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
   <https://www.gnu.org/licenses/>.  */

#define TEST_MAIN
#ifndef WIDE
# define TEST_NAME "strspn"
#else
# define TEST_NAME "wcsspn"
#endif /* WIDE */
#include "test-string.h"

#ifndef WIDE
# define STRSPN strspn
# define CHAR char
# define UCHAR unsigned char
# define SIMPLE_STRSPN simple_strspn
# define STRLEN strlen
# define STRCHR strchr
# define BIG_CHAR CHAR_MAX
# define SMALL_CHAR 127
#else
# include <wchar.h>
# define STRSPN wcsspn
# define CHAR wchar_t
# define UCHAR wchar_t
# define SIMPLE_STRSPN simple_wcsspn
# define STRLEN wcslen
# define STRCHR wcschr
# define BIG_CHAR WCHAR_MAX
# define SMALL_CHAR 1273
#endif /* WIDE */

typedef size_t (*proto_t) (const CHAR *, const CHAR *);

IMPL (STRSPN, 1)

/* Naive implementation to verify results.  */
size_t
SIMPLE_STRSPN (const CHAR *s, const CHAR *acc)
{
  const CHAR *r, *str = s;
  CHAR c;

  while ((c = *s++) != '\0')
    {
      for (r = acc; *r != '\0'; ++r)
	if (*r == c)
	  break;
      if (*r == '\0')
	return s - str - 1;
    }
  return s - str - 1;
}

static void
do_one_test (impl_t *impl, const CHAR *s, const CHAR *acc, size_t exp_res)
{
  size_t res = CALL (impl, s, acc);
  if (res != exp_res)
    {
      error (0, 0, "Wrong result in function %s %p %p", impl->name,
	     (void *) res, (void *) exp_res);
      ret = 1;
      return;
    }
}

static void
do_test (size_t align, size_t pos, size_t len)
{
  size_t i;
  CHAR *acc, *s;

  align &= 7;
  if ((align + pos + 10) * sizeof (CHAR) >= page_size || len > 240 || ! len)
    return;

  acc = (CHAR *) (buf2) + (random () & 255);
  s = (CHAR *) (buf1) + align;

  for (i = 0; i < len; ++i)
    {
      acc[i] = random () & BIG_CHAR;
      if (!acc[i])
	acc[i] = random () & BIG_CHAR;
      if (!acc[i])
	acc[i] = 1 + (random () & SMALL_CHAR);
    }
  acc[len] = '\0';

  for (i = 0; i < pos; ++i)
    s[i] = acc[random () % len];
  s[pos] = random () & BIG_CHAR;
  if (STRCHR (acc, s[pos]))
    s[pos] = '\0';
  else
    {
      for (i = pos + 1; i < pos + 10; ++i)
	s[i] = random () & BIG_CHAR;
      s[i] = '\0';
    }

  FOR_EACH_IMPL (impl, 0)
    do_one_test (impl, s, acc, pos);
}

static void
do_random_tests (void)
{
  size_t i, j, n, align, pos, alen, len;
  UCHAR *p = (UCHAR *) (buf1 + page_size) - 512;
  UCHAR *acc;

  for (n = 0; n < ITERATIONS; n++)
    {
      align = random () & 15;
      if (random () & 1)
	alen = random () & 63;
      else
	alen = random () & 15;
      if (!alen)
	pos = 0;
      else
	pos = random () & 511;
      if (pos + align >= 511)
	pos = 510 - align - (random () & 7);
      len = random () & 511;
      if (len + align >= 512)
	len = 511 - align - (random () & 7);
      acc = (UCHAR *) (buf2 + page_size) - alen - 1 - (random () & 7);
      for (i = 0; i < alen; ++i)
	{
	  acc[i] = random () & BIG_CHAR;
	  if (!acc[i])
	    acc[i] = random () & BIG_CHAR;
	  if (!acc[i])
	    acc[i] = 1 + (random () & SMALL_CHAR);
	}
      acc[i] = '\0';
      j = (pos > len ? pos : len) + align + 64;
      if (j > 512)
	j = 512;

      for (i = 0; i < j; i++)
	{
	  if (i == len + align)
	    p[i] = '\0';
	  else if (i == pos + align)
	    {
	      p[i] = random () & BIG_CHAR;
	      if (STRCHR ((CHAR *) acc, p[i]))
		p[i] = '\0';
	    }
	  else if (i < align || i > pos + align)
	    p[i] = random () & BIG_CHAR;
	  else
	    p[i] = acc [random () % alen];
	}

      FOR_EACH_IMPL (impl, 1)
	if (CALL (impl, (CHAR *) (p + align),
		  (CHAR *) acc) != (pos < len ? pos : len))
	  {
	    error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %zd != %zd",
		   n, impl->name, align, acc, alen, pos, len,
		   CALL (impl, (CHAR *) (p + align), (CHAR *) acc),
		   (pos < len ? pos : len));
	    ret = 1;
	  }
    }
}

int
test_main (void)
{
  size_t i;

  test_init ();

  printf ("%32s", "");
  FOR_EACH_IMPL (impl, 0)
    printf ("\t%s", impl->name);
  putchar ('\n');

  for (i = 0; i < 32; ++i)
    {
      do_test (0, 512, i);
      do_test (i, 512, i);
    }

  for (i = 1; i < 8; ++i)
    {
      do_test (0, 16 << i, 4);
      do_test (i, 16 << i, 4);
    }

  for (i = 1; i < 8; ++i)
    do_test (i, 64, 10);

  for (i = 0; i < 64; ++i)
    do_test (0, i, 6);

  do_random_tests ();
  return ret;
}

#include <support/test-driver.c>
Commit	Line	Data
	1	/* Test and measure strspn functions.
	2	Copyright (C) 1999-2025 Free Software Foundation, Inc.
	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library; if not, see
	17	<https://www.gnu.org/licenses/>. */
	18
	19	#define TEST_MAIN
	20	#ifndef WIDE
	21	# define TEST_NAME "strspn"
	22	#else
	23	# define TEST_NAME "wcsspn"
	24	#endif /* WIDE */
	25	#include "test-string.h"
	26
	27	#ifndef WIDE
	28	# define STRSPN strspn
	29	# define CHAR char
	30	# define UCHAR unsigned char
	31	# define SIMPLE_STRSPN simple_strspn
	32	# define STRLEN strlen
	33	# define STRCHR strchr
	34	# define BIG_CHAR CHAR_MAX
	35	# define SMALL_CHAR 127
	36	#else
	37	# include <wchar.h>
	38	# define STRSPN wcsspn
	39	# define CHAR wchar_t
	40	# define UCHAR wchar_t
	41	# define SIMPLE_STRSPN simple_wcsspn
	42	# define STRLEN wcslen
	43	# define STRCHR wcschr
	44	# define BIG_CHAR WCHAR_MAX
	45	# define SMALL_CHAR 1273
	46	#endif /* WIDE */
	47
	48	typedef size_t (proto_t) (const CHAR , const CHAR *);
	49
	50	IMPL (STRSPN, 1)
	51
	52	/* Naive implementation to verify results. */
	53	size_t
	54	SIMPLE_STRSPN (const CHAR s, const CHAR acc)
	55	{
	56	const CHAR r, str = s;
	57	CHAR c;
	58
	59	while ((c = *s++) != '\0')
	60	{
	61	for (r = acc; *r != '\0'; ++r)
	62	if (*r == c)
	63	break;
	64	if (*r == '\0')
	65	return s - str - 1;
	66	}
	67	return s - str - 1;
	68	}
	69
	70	static void
	71	do_one_test (impl_t impl, const CHAR s, const CHAR *acc, size_t exp_res)
	72	{
	73	size_t res = CALL (impl, s, acc);
	74	if (res != exp_res)
	75	{
	76	error (0, 0, "Wrong result in function %s %p %p", impl->name,
	77	(void ) res, (void ) exp_res);
	78	ret = 1;
	79	return;
	80	}
	81	}
	82
	83	static void
	84	do_test (size_t align, size_t pos, size_t len)
	85	{
	86	size_t i;
	87	CHAR acc, s;
	88
	89	align &= 7;
	90	if ((align + pos + 10) * sizeof (CHAR) >= page_size \|\| len > 240 \|\| ! len)
	91	return;
	92
	93	acc = (CHAR *) (buf2) + (random () & 255);
	94	s = (CHAR *) (buf1) + align;
	95
	96	for (i = 0; i < len; ++i)
	97	{
	98	acc[i] = random () & BIG_CHAR;
	99	if (!acc[i])
	100	acc[i] = random () & BIG_CHAR;
	101	if (!acc[i])
	102	acc[i] = 1 + (random () & SMALL_CHAR);
	103	}
	104	acc[len] = '\0';
	105
	106	for (i = 0; i < pos; ++i)
	107	s[i] = acc[random () % len];
	108	s[pos] = random () & BIG_CHAR;
	109	if (STRCHR (acc, s[pos]))
	110	s[pos] = '\0';
	111	else
	112	{
	113	for (i = pos + 1; i < pos + 10; ++i)
	114	s[i] = random () & BIG_CHAR;
	115	s[i] = '\0';
	116	}
	117
	118	FOR_EACH_IMPL (impl, 0)
	119	do_one_test (impl, s, acc, pos);
	120	}
	121
	122	static void
	123	do_random_tests (void)
	124	{
	125	size_t i, j, n, align, pos, alen, len;
	126	UCHAR p = (UCHAR ) (buf1 + page_size) - 512;
	127	UCHAR *acc;
	128
	129	for (n = 0; n < ITERATIONS; n++)
	130	{
	131	align = random () & 15;
	132	if (random () & 1)
	133	alen = random () & 63;
	134	else
	135	alen = random () & 15;
	136	if (!alen)
	137	pos = 0;
	138	else
	139	pos = random () & 511;
	140	if (pos + align >= 511)
	141	pos = 510 - align - (random () & 7);
	142	len = random () & 511;
	143	if (len + align >= 512)
	144	len = 511 - align - (random () & 7);
	145	acc = (UCHAR *) (buf2 + page_size) - alen - 1 - (random () & 7);
	146	for (i = 0; i < alen; ++i)
	147	{
	148	acc[i] = random () & BIG_CHAR;
	149	if (!acc[i])
	150	acc[i] = random () & BIG_CHAR;
	151	if (!acc[i])
	152	acc[i] = 1 + (random () & SMALL_CHAR);
	153	}
	154	acc[i] = '\0';
	155	j = (pos > len ? pos : len) + align + 64;
	156	if (j > 512)
	157	j = 512;
	158
	159	for (i = 0; i < j; i++)
	160	{
	161	if (i == len + align)
	162	p[i] = '\0';
	163	else if (i == pos + align)
	164	{
	165	p[i] = random () & BIG_CHAR;
	166	if (STRCHR ((CHAR *) acc, p[i]))
	167	p[i] = '\0';
	168	}
	169	else if (i < align \|\| i > pos + align)
	170	p[i] = random () & BIG_CHAR;
	171	else
	172	p[i] = acc [random () % alen];
	173	}
	174
	175	FOR_EACH_IMPL (impl, 1)
	176	if (CALL (impl, (CHAR *) (p + align),
	177	(CHAR *) acc) != (pos < len ? pos : len))
	178	{
	179	error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %zd != %zd",
	180	n, impl->name, align, acc, alen, pos, len,
	181	CALL (impl, (CHAR ) (p + align), (CHAR ) acc),
	182	(pos < len ? pos : len));
	183	ret = 1;
	184	}
	185	}
	186	}
	187
	188	int
	189	test_main (void)
	190	{
	191	size_t i;
	192
	193	test_init ();
	194
	195	printf ("%32s", "");
	196	FOR_EACH_IMPL (impl, 0)
	197	printf ("\t%s", impl->name);
	198	putchar ('\n');
	199
	200	for (i = 0; i < 32; ++i)
	201	{
	202	do_test (0, 512, i);
	203	do_test (i, 512, i);
	204	}
	205
	206	for (i = 1; i < 8; ++i)
	207	{
	208	do_test (0, 16 << i, 4);
	209	do_test (i, 16 << i, 4);
	210	}
	211
	212	for (i = 1; i < 8; ++i)
	213	do_test (i, 64, 10);
	214
	215	for (i = 0; i < 64; ++i)
	216	do_test (0, i, 6);
	217
	218	do_random_tests ();
	219	return ret;
	220	}
	221
	222	#include <support/test-driver.c>