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t_abs.c revision 1.1 
      1 /* $NetBSD: t_abs.c,v 1.1 2012/03/29 06:16:56 jruoho 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 1.1 2012/03/29 06:16:56 jruoho Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <inttypes.h>
     36 #include <limits.h>
     37 #include <stdlib.h>
     38 
     39 struct test {
     40 	int64_t val;
     41 	int64_t res;
     42 };
     43 
     44 ATF_TC(abs_basic);
     45 ATF_TC_HEAD(abs_basic, tc)
     46 {
     47 	atf_tc_set_md_var(tc, "descr", "Test that abs(3) works");
     48 }
     49 
     50 ATF_TC_BODY(abs_basic, tc)
     51 {
     52 	static const struct test table[] = {
     53 		{ 0,		0		},
     54 		{ +0,		0		},
     55 		{ -0,		0		},
     56 		{ -0x1010,	0x1010		},
     57 		{ INT_MAX,	INT_MAX		},
     58 		{ -INT_MAX,	INT_MAX		},
     59 	};
     60 
     61 	for (size_t i = 0; i < __arraycount(table); i++)
     62 		ATF_CHECK(abs(table[i].val) == (int)table[i].res);
     63 }
     64 
     65 ATF_TC(imaxabs_basic);
     66 ATF_TC_HEAD(imaxabs_basic, tc)
     67 {
     68 	atf_tc_set_md_var(tc, "descr", "Test that imaxabs(3) works");
     69 }
     70 
     71 ATF_TC_BODY(imaxabs_basic, tc)
     72 {
     73 	static const struct test table[] = {
     74 		{ 0,		0		},
     75 		{ INT_MAX,	INT_MAX		},
     76 		{ -INT_MAX,	INT_MAX		},
     77 	};
     78 
     79 	for (size_t i = 0; i < __arraycount(table); i++)
     80 		ATF_CHECK(imaxabs(table[i].val) == (intmax_t)table[i].res);
     81 }
     82 
     83 ATF_TC(labs_basic);
     84 ATF_TC_HEAD(labs_basic, tc)
     85 {
     86 	atf_tc_set_md_var(tc, "descr", "Test that labs(3) works");
     87 }
     88 
     89 ATF_TC_BODY(labs_basic, tc)
     90 {
     91 	static const struct test table[] = {
     92 		{ 0,		0		},
     93 		{ +0,		0		},
     94 		{ -0,		0		},
     95 		{ -1,		1		},
     96 		{ LONG_MAX,	LONG_MAX	},
     97 		{ -LONG_MAX,	LONG_MAX	},
     98 		{ -0x100000000,	0x100000000	},
     99 	};
    100 
    101 	for (size_t i = 0; i < __arraycount(table); i++)
    102 		ATF_CHECK(labs(table[i].val) == (long int)table[i].res);
    103 }
    104 
    105 ATF_TC(llabs_basic);
    106 ATF_TC_HEAD(llabs_basic, tc)
    107 {
    108 	atf_tc_set_md_var(tc, "descr", "Test that llabs(3) works");
    109 }
    110 
    111 ATF_TC_BODY(llabs_basic, tc)
    112 {
    113 	static const struct test table[] = {
    114 		{ 0,		0		},
    115 		{ +0,		0		},
    116 		{ -0,		0		},
    117 		{ -1,		1		},
    118 		{ LLONG_MAX,	LLONG_MAX	},
    119 		{ -LLONG_MAX,	LLONG_MAX	},
    120 		{ -0x100000000,	0x100000000	},
    121 	};
    122 
    123 	for (size_t i = 0; i < __arraycount(table); i++)
    124 		ATF_CHECK(llabs(table[i].val) == (long long int)table[i].res);
    125 }
    126 
    127 ATF_TP_ADD_TCS(tp)
    128 {
    129 
    130 	ATF_TP_ADD_TC(tp, abs_basic);
    131 	ATF_TP_ADD_TC(tp, imaxabs_basic);
    132 	ATF_TP_ADD_TC(tp, labs_basic);
    133 	ATF_TP_ADD_TC(tp, llabs_basic);
    134 
    135 	return atf_no_error();
    136 }
    137