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Diffstat (limited to 'tools/regression/lib/msun/test-next.c')
-rw-r--r-- | tools/regression/lib/msun/test-next.c | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/tools/regression/lib/msun/test-next.c b/tools/regression/lib/msun/test-next.c deleted file mode 100644 index d16fa77..0000000 --- a/tools/regression/lib/msun/test-next.c +++ /dev/null @@ -1,265 +0,0 @@ -/*- - * Copyright (c) 2005 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. - */ - -/* - * Test the correctness of nextafter{,f,l} and nexttoward{,f,l}. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <fenv.h> -#include <float.h> -#include <math.h> -#include <stdio.h> -#include <stdlib.h> - -#ifdef __i386__ -#include <ieeefp.h> -#endif - -#include "test-utils.h" - -#define test(exp, ans, ex) do { \ - double __ans = (ans); \ - feclearexcept(ALL_STD_EXCEPT); \ - _testl(#exp, __LINE__, (exp), __ans, (ex)); \ -} while (0) -#define testf(exp, ans, ex) do { \ - float __ans = (ans); \ - feclearexcept(ALL_STD_EXCEPT); \ - _testl(#exp, __LINE__, (exp), __ans, (ex)); \ -} while (0) -#define testl(exp, ans, ex) do { \ - long double __ans = (ans); \ - feclearexcept(ALL_STD_EXCEPT); \ - _testl(#exp, __LINE__, (exp), __ans, (ex)); \ -} while (0) -#define testboth(arg1, arg2, ans, ex, prec) do { \ - test##prec(nextafter##prec((arg1), (arg2)), (ans), (ex)); \ - test##prec(nexttoward##prec((arg1), (arg2)), (ans), (ex)); \ -} while (0) -#define testall(arg1, arg2, ans, ex) do { \ - testboth((arg1), (arg2), (ans), (ex), ); \ - testboth((arg1), (arg2), (ans), (ex), f); \ - testboth((arg1), (arg2), (ans), (ex), l); \ -} while (0) - -static void _testl(const char *, int, long double, long double, int); -static double idd(double); -static float idf(float); - -int -main(int argc, char *argv[]) -{ - static const int ex_under = FE_UNDERFLOW | FE_INEXACT; /* shorthand */ - static const int ex_over = FE_OVERFLOW | FE_INEXACT; - long double ldbl_small, ldbl_eps, ldbl_max; - - printf("1..5\n"); - -#ifdef __i386__ - fpsetprec(FP_PE); -#endif - /* - * We can't use a compile-time constant here because gcc on - * FreeBSD/i386 assumes long doubles are truncated to the - * double format. - */ - ldbl_small = ldexpl(1.0, LDBL_MIN_EXP - LDBL_MANT_DIG); - ldbl_eps = LDBL_EPSILON; - ldbl_max = ldexpl(1.0 - ldbl_eps / 2, LDBL_MAX_EXP); - - /* - * Special cases involving zeroes. - */ -#define ztest(prec) \ - test##prec(copysign##prec(1.0, nextafter##prec(0.0, -0.0)), -1.0, 0); \ - test##prec(copysign##prec(1.0, nextafter##prec(-0.0, 0.0)), 1.0, 0); \ - test##prec(copysign##prec(1.0, nexttoward##prec(0.0, -0.0)), -1.0, 0);\ - test##prec(copysign##prec(1.0, nexttoward##prec(-0.0, 0.0)), 1.0, 0) - - ztest(); - ztest(f); - ztest(l); -#undef ztest - -#define stest(next, eps, prec) \ - test##prec(next(-0.0, 42.0), eps, ex_under); \ - test##prec(next(0.0, -42.0), -eps, ex_under); \ - test##prec(next(0.0, INFINITY), eps, ex_under); \ - test##prec(next(-0.0, -INFINITY), -eps, ex_under) - - stest(nextafter, 0x1p-1074, ); - stest(nextafterf, 0x1p-149f, f); - stest(nextafterl, ldbl_small, l); - stest(nexttoward, 0x1p-1074, ); - stest(nexttowardf, 0x1p-149f, f); - stest(nexttowardl, ldbl_small, l); -#undef stest - - printf("ok 1 - next\n"); - - /* - * `x == y' and NaN tests - */ - testall(42.0, 42.0, 42.0, 0); - testall(-42.0, -42.0, -42.0, 0); - testall(INFINITY, INFINITY, INFINITY, 0); - testall(-INFINITY, -INFINITY, -INFINITY, 0); - testall(NAN, 42.0, NAN, 0); - testall(42.0, NAN, NAN, 0); - testall(NAN, NAN, NAN, 0); - - printf("ok 2 - next\n"); - - /* - * Tests where x is an ordinary normalized number - */ - testboth(1.0, 2.0, 1.0 + DBL_EPSILON, 0, ); - testboth(1.0, -INFINITY, 1.0 - DBL_EPSILON/2, 0, ); - testboth(1.0, 2.0, 1.0 + FLT_EPSILON, 0, f); - testboth(1.0, -INFINITY, 1.0 - FLT_EPSILON/2, 0, f); - testboth(1.0, 2.0, 1.0 + ldbl_eps, 0, l); - testboth(1.0, -INFINITY, 1.0 - ldbl_eps/2, 0, l); - - testboth(-1.0, 2.0, -1.0 + DBL_EPSILON/2, 0, ); - testboth(-1.0, -INFINITY, -1.0 - DBL_EPSILON, 0, ); - testboth(-1.0, 2.0, -1.0 + FLT_EPSILON/2, 0, f); - testboth(-1.0, -INFINITY, -1.0 - FLT_EPSILON, 0, f); - testboth(-1.0, 2.0, -1.0 + ldbl_eps/2, 0, l); - testboth(-1.0, -INFINITY, -1.0 - ldbl_eps, 0, l); - - /* Cases where nextafter(...) != nexttoward(...) */ - test(nexttoward(1.0, 1.0 + ldbl_eps), 1.0 + DBL_EPSILON, 0); - testf(nexttowardf(1.0, 1.0 + ldbl_eps), 1.0 + FLT_EPSILON, 0); - testl(nexttowardl(1.0, 1.0 + ldbl_eps), 1.0 + ldbl_eps, 0); - - printf("ok 3 - next\n"); - - /* - * Tests at word boundaries, normalization boundaries, etc. - */ - testboth(0x1.87654ffffffffp+0, INFINITY, 0x1.87655p+0, 0, ); - testboth(0x1.87655p+0, -INFINITY, 0x1.87654ffffffffp+0, 0, ); - testboth(0x1.fffffffffffffp+0, INFINITY, 0x1p1, 0, ); - testboth(0x1p1, -INFINITY, 0x1.fffffffffffffp+0, 0, ); - testboth(0x0.fffffffffffffp-1022, INFINITY, 0x1p-1022, 0, ); - testboth(0x1p-1022, -INFINITY, 0x0.fffffffffffffp-1022, ex_under, ); - - testboth(0x1.fffffep0f, INFINITY, 0x1p1, 0, f); - testboth(0x1p1, -INFINITY, 0x1.fffffep0f, 0, f); - testboth(0x0.fffffep-126f, INFINITY, 0x1p-126f, 0, f); - testboth(0x1p-126f, -INFINITY, 0x0.fffffep-126f, ex_under, f); - -#if LDBL_MANT_DIG == 53 - testboth(0x1.87654ffffffffp+0L, INFINITY, 0x1.87655p+0L, 0, l); - testboth(0x1.87655p+0L, -INFINITY, 0x1.87654ffffffffp+0L, 0, l); - testboth(0x1.fffffffffffffp+0L, INFINITY, 0x1p1L, 0, l); - testboth(0x1p1L, -INFINITY, 0x1.fffffffffffffp+0L, 0, l); - testboth(0x0.fffffffffffffp-1022L, INFINITY, 0x1p-1022L, 0, l); - testboth(0x1p-1022L, -INFINITY, 0x0.fffffffffffffp-1022L, ex_under, l); -#elif LDBL_MANT_DIG == 64 && !defined(__i386) - testboth(0x1.87654321fffffffep+0L, INFINITY, 0x1.87654322p+0L, 0, l); - testboth(0x1.87654322p+0L, -INFINITY, 0x1.87654321fffffffep+0L, 0, l); - testboth(0x1.fffffffffffffffep0L, INFINITY, 0x1p1L, 0, l); - testboth(0x1p1L, -INFINITY, 0x1.fffffffffffffffep0L, 0, l); - testboth(0x0.fffffffffffffffep-16382L, INFINITY, 0x1p-16382L, 0, l); - testboth(0x1p-16382L, -INFINITY, - 0x0.fffffffffffffffep-16382L, ex_under, l); -#elif LDBL_MANT_DIG == 113 - testboth(0x1.876543210987ffffffffffffffffp+0L, INFINITY, - 0x1.876543210988p+0, 0, l); - testboth(0x1.876543210988p+0L, -INFINITY, - 0x1.876543210987ffffffffffffffffp+0L, 0, l); - testboth(0x1.ffffffffffffffffffffffffffffp0L, INFINITY, 0x1p1L, 0, l); - testboth(0x1p1L, -INFINITY, 0x1.ffffffffffffffffffffffffffffp0L, 0, l); - testboth(0x0.ffffffffffffffffffffffffffffp-16382L, INFINITY, - 0x1p-16382L, 0, l); - testboth(0x1p-16382L, -INFINITY, - 0x0.ffffffffffffffffffffffffffffp-16382L, ex_under, l); -#endif - - printf("ok 4 - next\n"); - - /* - * Overflow tests - */ - test(idd(nextafter(DBL_MAX, INFINITY)), INFINITY, ex_over); - test(idd(nextafter(INFINITY, 0.0)), DBL_MAX, 0); - test(idd(nexttoward(DBL_MAX, DBL_MAX * 2.0L)), INFINITY, ex_over); -#if LDBL_MANT_DIG > 53 - test(idd(nexttoward(INFINITY, DBL_MAX * 2.0L)), DBL_MAX, 0); -#endif - - testf(idf(nextafterf(FLT_MAX, INFINITY)), INFINITY, ex_over); - testf(idf(nextafterf(INFINITY, 0.0)), FLT_MAX, 0); - testf(idf(nexttowardf(FLT_MAX, FLT_MAX * 2.0)), INFINITY, ex_over); - testf(idf(nexttowardf(INFINITY, FLT_MAX * 2.0)), FLT_MAX, 0); - - testboth(ldbl_max, INFINITY, INFINITY, ex_over, l); - testboth(INFINITY, 0.0, ldbl_max, 0, l); - - printf("ok 5 - next\n"); - - return (0); -} - -static void -_testl(const char *exp, int line, long double actual, long double expected, - int except) -{ - int actual_except; - - actual_except = fetestexcept(ALL_STD_EXCEPT); - if (!fpequal(actual, expected)) { - fprintf(stderr, "%d: %s returned %La, expecting %La\n", - line, exp, actual, expected); - abort(); - } - if (actual_except != except) { - fprintf(stderr, "%d: %s raised 0x%x, expecting 0x%x\n", - line, exp, actual_except, except); - abort(); - } -} - -/* - * The idd() and idf() routines ensure that doubles and floats are - * converted to their respective types instead of stored in the FPU - * with extra precision. - */ -static double -idd(double x) -{ - return (x); -} - -static float -idf(float x) -{ - return (x); -} |