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t_ilogb.c revision 1.1 
      1 /* $NetBSD: t_ilogb.c,v 1.1 2016/08/22 08:49:33 maya 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 
     32 #include <atf-c.h>
     33 #include <fenv.h>
     34 #include <math.h>
     35 
     36 #define ATF_CHECK_RAISED_INVALID do { \
     37 	int r; \
     38 	r = feclearexcept(FE_ALL_EXCEPT); \
     39 	ATF_CHECK(r == FE_INVALID); \
     40 	} while (0)
     41 
     42 #define ATF_CHECK_RAISED_NOTHING do { \
     43 	int r; \
     44 	r = feclearexcept(FE_ALL_EXCEPT); \
     45 	ATF_CHECK(r == 0); \
     46 	} while (0)
     47 
     48 ATF_TC(ilogb);
     49 ATF_TC_HEAD(ilogb, tc)
     50 {
     51 	atf_tc_set_md_var(tc, "descr","Check ilogb family");
     52 }
     53 
     54 ATF_TC_BODY(ilogb, tc)
     55 {
     56   atf_tc_expect_fail("PR lib/51427");
     57 
     58 	ATF_CHECK(ilogbf(0) == FP_ILOGB0);
     59 	ATF_CHECK_RAISED_INVALID;
     60 	ATF_CHECK(ilogb(0) == FP_ILOGB0);
     61 	ATF_CHECK_RAISED_INVALID;
     62 	ATF_CHECK(ilogbl(0) == FP_ILOGB0);
     63 	ATF_CHECK_RAISED_INVALID;
     64 
     65 	ATF_CHECK(ilogbf(-0) == FP_ILOGB0);
     66 	ATF_CHECK_RAISED_INVALID;
     67 	ATF_CHECK(ilogb(-0) == FP_ILOGB0);
     68 	ATF_CHECK_RAISED_INVALID;
     69 	ATF_CHECK(ilogbl(-0) == FP_ILOGB0);
     70 	ATF_CHECK_RAISED_INVALID;
     71 
     72 	ATF_CHECK(ilogbf(INFINITY) == INT_MAX);
     73 	ATF_CHECK_RAISED_INVALID;
     74 	ATF_CHECK(ilogb(INFINITY) == INT_MAX);
     75 	ATF_CHECK_RAISED_INVALID;
     76 	ATF_CHECK(ilogbl(INFINITY) == INT_MAX);
     77 	ATF_CHECK_RAISED_INVALID;
     78 
     79 	ATF_CHECK(ilogbf(-INFINITY) == INT_MAX);
     80 	ATF_CHECK_RAISED_INVALID;
     81 	ATF_CHECK(ilogb(-INFINITY) == INT_MAX);
     82 	ATF_CHECK_RAISED_INVALID;
     83 	ATF_CHECK(ilogbl(-INFINITY) == INT_MAX);
     84 	ATF_CHECK_RAISED_INVALID;
     85 
     86 	ATF_CHECK(ilogbf(2^20) == 20);
     87 	ATF_CHECK_RAISED_NOTHING;
     88 	ATF_CHECK(ilogb(2^20) == 20);
     89 	ATF_CHECK_RAISED_NOTHING;
     90 	ATF_CHECK(ilogbl(2^20) == 20);
     91 	ATF_CHECK_RAISED_NOTHING;
     92 
     93 #ifndef __vax__
     94 	ATF_CHECK(ilogbf(NAN) == FP_ILOGBNAN);
     95 	ATF_CHECK_RAISED_INVALID;
     96 	ATF_CHECK(ilogb(NAN) == FP_ILOGBNAN);
     97 	ATF_CHECK_RAISED_INVALID;
     98 	ATF_CHECK(ilogbl(NAN) == FP_ILOGBNAN);
     99 	ATF_CHECK_RAISED_INVALID;
    100 #endif
    101 }
    102 
    103 ATF_TP_ADD_TCS(tp)
    104 {
    105 
    106 	ATF_TP_ADD_TC(tp, ilogb);
    107 
    108 	return atf_no_error();
    109 }
    110