diff options
Diffstat (limited to 'tools/regression/lib/msun/test-nearbyint.c')
| -rw-r--r-- | tools/regression/lib/msun/test-nearbyint.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/tools/regression/lib/msun/test-nearbyint.c b/tools/regression/lib/msun/test-nearbyint.c deleted file mode 100644 index 602ea2a..0000000 --- a/tools/regression/lib/msun/test-nearbyint.c +++ /dev/null @@ -1,176 +0,0 @@ -/*- - * Copyright (c) 2010 David Schultz <das@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* - * Tests for nearbyint{,f,l}() - * - * TODO: - * - adapt tests for rint(3) - * - tests for harder values (more mantissa bits than float) - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <assert.h> -#include <fenv.h> -#include <math.h> -#include <stdio.h> - -#include "test-utils.h" - -static int testnum; - -static const int rmodes[] = { - FE_TONEAREST, FE_DOWNWARD, FE_UPWARD, FE_TOWARDZERO, -}; - -/* Make sure we're testing the library, not some broken compiler built-ins. */ -double (*libnearbyint)(double) = nearbyint; -float (*libnearbyintf)(float) = nearbyintf; -long double (*libnearbyintl)(long double) = nearbyintl; -#define nearbyintf libnearbyintf -#define nearbyint libnearbyint -#define nearbyintl libnearbyintl - -static const struct { - float in; - float out[3]; /* one answer per rounding mode except towardzero */ -} tests[] = { -/* input output (expected) */ - { 0.0, { 0.0, 0.0, 0.0 }}, - { 0.5, { 0.0, 0.0, 1.0 }}, - { M_PI, { 3.0, 3.0, 4.0 }}, - { 65536.5, { 65536, 65536, 65537 }}, - { INFINITY, { INFINITY, INFINITY, INFINITY }}, - { NAN, { NAN, NAN, NAN }}, -}; - -static const int ntests = sizeof(tests) / sizeof(tests[0]); - -/* Get the appropriate result for the current rounding mode. */ -static float -get_output(int testindex, int rmodeindex, int negative) -{ - double out; - - if (negative) { /* swap downwards and upwards if input is negative */ - if (rmodeindex == 1) - rmodeindex = 2; - else if (rmodeindex == 2) - rmodeindex = 1; - } - if (rmodeindex == 3) /* FE_TOWARDZERO uses the value for downwards */ - rmodeindex = 1; - out = tests[testindex].out[rmodeindex]; - return (negative ? -out : out); -} - -static void -test_nearby(int testindex) -{ - float in, out; - int i; - - for (i = 0; i < sizeof(rmodes) / sizeof(rmodes[0]); i++) { - fesetround(rmodes[i]); - feclearexcept(ALL_STD_EXCEPT); - - in = tests[testindex].in; - out = get_output(testindex, i, 0); - assert(fpequal(out, libnearbyintf(in))); - assert(fpequal(out, nearbyint(in))); - assert(fpequal(out, nearbyintl(in))); - assert(fetestexcept(ALL_STD_EXCEPT) == 0); - - in = -tests[testindex].in; - out = get_output(testindex, i, 1); - assert(fpequal(out, nearbyintf(in))); - assert(fpequal(out, nearbyint(in))); - assert(fpequal(out, nearbyintl(in))); - assert(fetestexcept(ALL_STD_EXCEPT) == 0); - } - - printf("ok %d\t\t# nearbyint(+%g)\n", testnum++, in); -} - -static void -test_modf(int testindex) -{ - float in, out; - float ipartf, ipart_expected; - double ipart; - long double ipartl; - int i; - - for (i = 0; i < sizeof(rmodes) / sizeof(rmodes[0]); i++) { - fesetround(rmodes[i]); - feclearexcept(ALL_STD_EXCEPT); - - in = tests[testindex].in; - ipart_expected = tests[testindex].out[1]; - out = copysignf( - isinf(ipart_expected) ? 0.0 : in - ipart_expected, in); - ipartl = ipart = ipartf = 42.0; - - assert(fpequal(out, modff(in, &ipartf))); - assert(fpequal(ipart_expected, ipartf)); - assert(fpequal(out, modf(in, &ipart))); - assert(fpequal(ipart_expected, ipart)); - assert(fpequal(out, modfl(in, &ipartl))); - assert(fpequal(ipart_expected, ipartl)); - assert(fetestexcept(ALL_STD_EXCEPT) == 0); - - in = -in; - ipart_expected = -ipart_expected; - out = -out; - ipartl = ipart = ipartf = 42.0; - assert(fpequal(out, modff(in, &ipartf))); - assert(fpequal(ipart_expected, ipartf)); - assert(fpequal(out, modf(in, &ipart))); - assert(fpequal(ipart_expected, ipart)); - assert(fpequal(out, modfl(in, &ipartl))); - assert(fpequal(ipart_expected, ipartl)); - assert(fetestexcept(ALL_STD_EXCEPT) == 0); - } - - printf("ok %d\t\t# modf(+%g)\n", testnum++, in); -} - -int -main(int argc, char *argv[]) -{ - int i; - - printf("1..%d\n", ntests * 2); - testnum = 1; - for (i = 0; i < ntests; i++) { - test_nearby(i); - test_modf(i); - } - - return (0); -} |
