tests/lib/libc/stdlib/t_abs.c

   1 /* $NetBSD: t_abs.c,v 1.3 2014/03/01 22:38:13 joerg Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jukka Ruohonen.
   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 #include <sys/cdefs.h>
  32 __RCSID("$NetBSD: t_abs.c,v 1.3 2014/03/01 22:38:13 joerg Exp $");
  33
  34 #include <atf-c.h>
  35 #include <inttypes.h>
  36 #include <limits.h>
  37 #include <stdlib.h>
  38
  39 ATF_TC(abs_basic);
  40 ATF_TC_HEAD(abs_basic, tc)
  41 {
  42         atf_tc_set_md_var(tc, "descr", "Test that abs(3) works");
  43 }
  44
  45 ATF_TC_BODY(abs_basic, tc)
  46 {
  47         static const struct {
  48                 int val;
  49                 int res;
  50         } table[] = {
  51                 { 0,            0               },
  52                 { +0,           0               },
  53                 { -0,           0               },
  54                 { -0x1010,      0x1010          },
  55                 { INT_MAX,      INT_MAX         },
  56                 { -INT_MAX,     INT_MAX         },
  57         };
  58
  59         for (size_t i = 0; i < __arraycount(table); i++)
  60                 ATF_CHECK(abs(table[i].val) == table[i].res);
  61 }
  62
  63 ATF_TC(imaxabs_basic);
  64 ATF_TC_HEAD(imaxabs_basic, tc)
  65 {
  66         atf_tc_set_md_var(tc, "descr", "Test that imaxabs(3) works");
  67 }
  68
  69 ATF_TC_BODY(imaxabs_basic, tc)
  70 {
  71         static const struct {
  72                 intmax_t val;
  73                 intmax_t res;
  74         } table[] = {
  75                 { 0,            0               },
  76                 { INT_MAX,      INT_MAX         },
  77                 { -INT_MAX,     INT_MAX         },
  78                 { LONG_MAX,     LONG_MAX        },
  79                 { -LONG_MAX,    LONG_MAX        },
  80                 { LLONG_MAX,    LLONG_MAX       },
  81                 { -LLONG_MAX,   LLONG_MAX       },
  82                 { INT_MAX,      INT_MAX         },
  83                 { -INT_MAX,     INT_MAX         },
  84         };
  85
  86         for (size_t i = 0; i < __arraycount(table); i++)
  87                 ATF_CHECK(imaxabs(table[i].val) == table[i].res);
  88 }
  89
  90 ATF_TC(labs_basic);
  91 ATF_TC_HEAD(labs_basic, tc)
  92 {
  93         atf_tc_set_md_var(tc, "descr", "Test that labs(3) works");
  94 }
  95
  96 ATF_TC_BODY(labs_basic, tc)
  97 {
  98         static const struct {
  99                 long val;
 100                 long res;
 101         } table[] = {
 102                 { 0,            0               },
 103                 { +0,           0               },
 104                 { -0,           0               },
 105                 { -1,           1               },
 106                 { LONG_MAX,     LONG_MAX        },
 107                 { -LONG_MAX,    LONG_MAX        },
 108                 { INT_MAX,      INT_MAX         },
 109                 { -INT_MAX,     INT_MAX         },
 110         };
 111
 112         for (size_t i = 0; i < __arraycount(table); i++)
 113                 ATF_CHECK(labs(table[i].val) == table[i].res);
 114 }
 115
 116 ATF_TC(llabs_basic);
 117 ATF_TC_HEAD(llabs_basic, tc)
 118 {
 119         atf_tc_set_md_var(tc, "descr", "Test that llabs(3) works");
 120 }
 121
 122 ATF_TC_BODY(llabs_basic, tc)
 123 {
 124         static const struct {
 125                 long long val;
 126                 long long res;
 127         } table[] = {
 128                 { 0,            0               },
 129                 { +0,           0               },
 130                 { -0,           0               },
 131                 { -1,           1               },
 132                 { INT_MAX,      INT_MAX         },
 133                 { -INT_MAX,     INT_MAX         },
 134                 { LONG_MAX,     LONG_MAX        },
 135                 { -LONG_MAX,    LONG_MAX        },
 136                 { LLONG_MAX,    LLONG_MAX       },
 137                 { -LLONG_MAX,   LLONG_MAX       },
 138                 { -0x100000000LL,       0x100000000LL   },
 139         };
 140
 141         for (size_t i = 0; i < __arraycount(table); i++)
 142                 ATF_CHECK(llabs(table[i].val) == table[i].res);
 143 }
 144
 145 ATF_TP_ADD_TCS(tp)
 146 {
 147
 148         ATF_TP_ADD_TC(tp, abs_basic);
 149         ATF_TP_ADD_TC(tp, imaxabs_basic);
 150         ATF_TP_ADD_TC(tp, labs_basic);
 151         ATF_TP_ADD_TC(tp, llabs_basic);
 152
 153         return atf_no_error();
 154 }