1ec3feb648
I did this without a full vendor update since that would cause too many conflicts. Since these files now almost match the NetBSD sources the next git subtree merge should work just fine. Reviewed By: lwhsu Differential Revision: https://reviews.freebsd.org/D28797
103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/* $NetBSD: t_bit.c,v 1.1 2019/04/26 08:52:16 maya Exp $ */
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/*
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* Written by Maya Rashish <maya@NetBSD.org>
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* Public domain.
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*
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* Testing signbit{,f,l} function correctly
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*/
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#include <atf-c.h>
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#include <float.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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static const struct {
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double input;
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bool is_negative;
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} values[] = {
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{ -1, true},
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{ -123, true},
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{ -123E6, true},
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#ifdef INFINITY
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{ -INFINITY, true},
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{ INFINITY, false},
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#endif
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{ 123E6, false},
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{ 0, false},
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{ -FLT_MIN, true},
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{ FLT_MIN, false},
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/*
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* Cannot be accurately represented as float,
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* but sign should be preserved
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*/
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{ DBL_MAX, false},
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{ -DBL_MAX, true},
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};
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#ifdef __HAVE_LONG_DOUBLE
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static const struct {
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long double input;
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bool is_negative;
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} ldbl_values[] = {
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{ -LDBL_MIN, true},
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{ LDBL_MIN, false},
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{ LDBL_MAX, false},
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{ -LDBL_MAX, true},
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};
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#endif
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ATF_TC(signbit);
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ATF_TC_HEAD(signbit, tc)
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{
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atf_tc_set_md_var(tc, "descr","Check that signbit functions correctly");
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}
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ATF_TC_BODY(signbit, tc)
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{
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double iterator_d;
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float iterator_f;
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for (unsigned int i = 0; i < __arraycount(values); i++) {
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iterator_d = values[i].input;
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iterator_f = (float) values[i].input;
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if (signbit(iterator_f) != values[i].is_negative)
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atf_tc_fail("%s:%d iteration %d signbitf is wrong"
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" about the sign of %f", __func__,
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__LINE__, i, iterator_f);
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if (signbit(iterator_d) != values[i].is_negative)
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atf_tc_fail("%s:%d iteration %d signbit is wrong"
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"about the sign of %f", __func__,
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__LINE__,i, iterator_d);
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#ifdef __HAVE_LONG_DOUBLE
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long double iterator_l = values[i].input;
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if (signbit(iterator_l) != values[i].is_negative)
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atf_tc_fail("%s:%d iteration %d signbitl is wrong"
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" about the sign of %Lf", __func__,
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__LINE__, i, iterator_l);
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#endif
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}
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#ifdef __HAVE_LONG_DOUBLE
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for (unsigned int i = 0; i < __arraycount(ldbl_values); i++) {
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if (signbit(ldbl_values[i].input) != ldbl_values[i].is_negative)
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atf_tc_fail("%s:%d iteration %d signbitl is"
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"wrong about the sign of %Lf",
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__func__, __LINE__, i,
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ldbl_values[i].input);
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}
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#endif
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, signbit);
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return atf_no_error();
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}
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