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      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 }
    155