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t_ilogb.c revision 1.6.2.3 
      1 /* $NetBSD: t_ilogb.c,v 1.6.2.3 2017/03/20 06:57:59 pgoyette Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2016 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Maya Rashish.
      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_ilogb.c,v 1.6.2.3 2017/03/20 06:57:59 pgoyette Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <fenv.h>
     36 #include <limits.h>
     37 #include <math.h>
     38 
     39 #ifndef __HAVE_FENV
     40 
     41 # define ATF_CHECK_RAISED_INVALID
     42 # define ATF_CHECK_RAISED_NOTHING
     43 
     44 #else
     45 # define ATF_CHECK_RAISED_INVALID do { \
     46 	int r = fetestexcept(FE_ALL_EXCEPT); \
     47 	ATF_CHECK_MSG(r == FE_INVALID, "r=%#x != %#x\n", r, FE_INVALID); \
     48 	(void)feclearexcept(FE_ALL_EXCEPT); \
     49 } while (/*CONSTCOND*/0)
     50 
     51 # define ATF_CHECK_RAISED_NOTHING do { \
     52 	int r = fetestexcept(FE_ALL_EXCEPT); \
     53 	ATF_CHECK_MSG(r == 0, "r=%#x != 0\n", r); \
     54 	(void)feclearexcept(FE_ALL_EXCEPT); \
     55 } while (/*CONSTCOND*/0)
     56 #endif
     57 
     58 ATF_TC(ilogb);
     59 ATF_TC_HEAD(ilogb, tc)
     60 {
     61 	atf_tc_set_md_var(tc, "descr","Check ilogb family");
     62 }
     63 
     64 ATF_TC_BODY(ilogb, tc)
     65 {
     66 
     67 	ATF_CHECK(ilogbf(0) == FP_ILOGB0);
     68 	ATF_CHECK_RAISED_INVALID;
     69 	ATF_CHECK(ilogb(0) == FP_ILOGB0);
     70 	ATF_CHECK_RAISED_INVALID;
     71 #ifdef __HAVE_LONG_DOUBLE
     72 	ATF_CHECK(ilogbl(0) == FP_ILOGB0);
     73 	ATF_CHECK_RAISED_INVALID;
     74 #endif
     75 
     76 	ATF_CHECK(ilogbf(-0) == FP_ILOGB0);
     77 	ATF_CHECK_RAISED_INVALID;
     78 	ATF_CHECK(ilogb(-0) == FP_ILOGB0);
     79 	ATF_CHECK_RAISED_INVALID;
     80 #ifdef __HAVE_LONG_DOUBLE
     81 	ATF_CHECK(ilogbl(-0) == FP_ILOGB0);
     82 	ATF_CHECK_RAISED_INVALID;
     83 #endif
     84 
     85 	ATF_CHECK(ilogbf(INFINITY) == INT_MAX);
     86 	ATF_CHECK_RAISED_INVALID;
     87 	ATF_CHECK(ilogb(INFINITY) == INT_MAX);
     88 	ATF_CHECK_RAISED_INVALID;
     89 #ifdef __HAVE_LONG_DOUBLE
     90 	ATF_CHECK(ilogbl(INFINITY) == INT_MAX);
     91 	ATF_CHECK_RAISED_INVALID;
     92 #endif
     93 
     94 	ATF_CHECK(ilogbf(-INFINITY) == INT_MAX);
     95 	ATF_CHECK_RAISED_INVALID;
     96 	ATF_CHECK(ilogb(-INFINITY) == INT_MAX);
     97 	ATF_CHECK_RAISED_INVALID;
     98 #ifdef __HAVE_LONG_DOUBLE
     99 	ATF_CHECK(ilogbl(-INFINITY) == INT_MAX);
    100 	ATF_CHECK_RAISED_INVALID;
    101 #endif
    102 
    103 	ATF_CHECK(ilogbf(1024) == 10);
    104 	ATF_CHECK_RAISED_NOTHING;
    105 	ATF_CHECK(ilogb(1024) == 10);
    106 	ATF_CHECK_RAISED_NOTHING;
    107 #ifdef __HAVE_LONG_DOUBLE
    108 	ATF_CHECK(ilogbl(1024) == 10);
    109 	ATF_CHECK_RAISED_NOTHING;
    110 #endif
    111 
    112 #ifndef __vax__
    113 	ATF_CHECK(ilogbf(NAN) == FP_ILOGBNAN);
    114 	ATF_CHECK_RAISED_INVALID;
    115 	ATF_CHECK(ilogb(NAN) == FP_ILOGBNAN);
    116 	ATF_CHECK_RAISED_INVALID;
    117 #ifdef __HAVE_LONG_DOUBLE
    118 	ATF_CHECK(ilogbl(NAN) == FP_ILOGBNAN);
    119 	ATF_CHECK_RAISED_INVALID;
    120 #endif
    121 #endif
    122 }
    123 
    124 ATF_TP_ADD_TCS(tp)
    125 {
    126 
    127 	ATF_TP_ADD_TC(tp, ilogb);
    128 
    129 	return atf_no_error();
    130 }
    131