regress/lib/libc/string/memmem/memmem_test.c

   1 /*      $NetBSD: memmem_test.c,v 1.1 2005/03/13 15:40:32 perry Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2005 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Perry E. Metzger of Metzger, Dowdeswell & Co. LLC.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 char p0[] = "";
  37 int lp0 = 0;
  38 char p1[] = "0123";
  39 int lp1 = 4;
  40 char p2[] = "456";
  41 int lp2 = 3;
  42 char p3[] = "789";
  43 int lp3 = 3;
  44 char p4[] = "abc";
  45 int lp4 = 3;
  46 char p5[] = "0";
  47 int lp5 = 1;
  48 char p6[] = "9";
  49 int lp6 = 1;
  50 char p7[] = "654";
  51 int lp7 = 3;
  52
  53 char b0[] = "";
  54 int lb0 = 0;
  55 char b1[] = "0";
  56 int lb1 = 1;
  57 char b2[] = "0123456789";
  58 int lb2 = 10;
  59
  60 #define expect(b) if (!(b)) { \
  61                         fprintf(stderr, "failed on line %d\n", __LINE__); \
  62                         exit(1); \
  63                   }
  64
  65 int
  66 main(int argc, char **argv)
  67 {
  68         expect(memmem(b2, lb2, p0, lp0) == b2);
  69         expect(memmem(b0, lb0, p0, lp0) == b0);
  70         expect(memmem(b0, lb0, p1, lp1) == NULL);
  71         expect(memmem(b1, lb1, p1, lp1) == NULL);
  72
  73         expect(memmem(b2, lb2, p1, lp1) == b2);
  74         expect(memmem(b2, lb2, p2, lp2) == (b2 + 4));
  75         expect(memmem(b2, lb2, p3, lp3) == (b2 + 7));
  76
  77         expect(memmem(b2, lb2, p5, lp5) == b2);
  78         expect(memmem(b2, lb2, p6, lp6) == (b2 + 9));
  79
  80         expect(memmem(b2, lb2, p4, lp4) == NULL);
  81         expect(memmem(b2, lb2, p7, lp7) == NULL);
  82
  83         exit(0);
  84 }