kc3-lang/gnulib/tests/unistr/test-u8-strchr.c

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• Hash : 32a72f45
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  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• tests/unistr/test-u8-strchr.c

• /* Test of u8_strchr() function.
     Copyright (C) 2010-2023 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Paolo Bonzini <bonzini@gnu.org>, 2010.  */
  
  #include <config.h>
  
  #include "unistr.h"
  
  #include <stdlib.h>
  #include <string.h>
  
  #include "zerosize-ptr.h"
  #include "macros.h"
  
  #define UNIT uint8_t
  #define U_UCTOMB u8_uctomb
  #define U32_TO_U u32_to_u8
  #define U_STRCHR u8_strchr
  #define U_SET u8_set
  #include "test-strchr.h"
  
  int
  main (void)
  {
    test_strchr ();
  
    /* Check that u8_strchr() does not read past the end of the string.  */
    {
      char *page_boundary = (char *) zerosize_ptr ();
  
      if (page_boundary != NULL)
        {
          UNIT *mem;
  
          mem = (UNIT *) (page_boundary - 1 * sizeof (UNIT));
          mem[0] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 2 * sizeof (UNIT));
          mem[0] = 0x50;
          mem[1] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 3 * sizeof (UNIT));
          mem[0] = 0x50;
          mem[1] = 0x50;
          mem[2] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 3 * sizeof (UNIT));
          mem[0] = 0xC4; mem[1] = 0xA0; /* U+0120 */
          mem[2] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 3 * sizeof (UNIT));
          mem[0] = 0xC5; mem[1] = 0xA3; /* U+0163 */
          mem[2] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
          mem[0] = 0x50;
          mem[1] = 0x50;
          mem[2] = 0x50;
          mem[3] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
          mem[0] = 0x50;
          mem[1] = 0xC5; mem[2] = 0xA3; /* U+0163 */
          mem[3] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
          ASSERT (u8_strchr (mem, 0x163) == mem + 1);
  
          mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
          mem[0] = 0xE3; mem[1] = 0x91; mem[2] = 0x00; /* U+3450 */
          mem[3] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 4 * sizeof (UNIT));
          mem[0] = 0xE3; mem[1] = 0x92; mem[2] = 0x96; /* U+3496 */
          mem[3] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 5 * sizeof (UNIT));
          mem[0] = 0x50;
          mem[1] = 0x50;
          mem[2] = 0x50;
          mem[3] = 0x50;
          mem[4] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
  
          mem = (UNIT *) (page_boundary - 5 * sizeof (UNIT));
          mem[0] = 0x50;
          mem[1] = 0xE3; mem[2] = 0x92; mem[3] = 0x96; /* U+3496 */
          mem[4] = 0;
          ASSERT (u8_strchr (mem, 0x55) == NULL);
          ASSERT (u8_strchr (mem, 0x123) == NULL);
          ASSERT (u8_strchr (mem, 0x3456) == NULL);
          ASSERT (u8_strchr (mem, 0x23456) == NULL);
          ASSERT (u8_strchr (mem, 0x3496) == mem + 1);
        }
    }
  
    return 0;
  }
  

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