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
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* $NetBSD: t_libm.h,v 1.7 2018/11/07 03:59:36 riastradh Exp $ */
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/*
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* Check result of fn(arg) is correct within the bounds.
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* Should be ok to do the checks using 'double' for 'float' functions.
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* On i386 float and double values are returned on the x87 stack and might
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* be out of range for the function - so save and print as 'long double'.
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* (otherwise you can get 'inf != inf' reported!)
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*/
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#define T_LIBM_CHECK(subtest, fn, arg, expect_, epsilon_) do { \
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long double epsilon = epsilon_; \
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long double expect = expect_; \
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long double r = fn(arg); \
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long double e = fabsl((r - expect)/expect); \
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if (!(r == expect || e <= epsilon)) \
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atf_tc_fail_nonfatal( \
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"subtest %u: " #fn "(%g) is %Lg (%.14La) " \
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"not %Lg (%.13La), error %Lg (%.6La) > %Lg", \
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subtest, arg, r, r, expect, expect, e, e, epsilon); \
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} while (0)
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/* Check that the result of fn(arg) is NaN */
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#ifndef __vax__
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#define T_LIBM_CHECK_NAN(subtest, fn, arg) do { \
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double r = fn(arg); \
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if (!isnan(r)) \
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atf_tc_fail_nonfatal("subtest %u: " #fn "(%g) is %g not NaN", \
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subtest, arg, r); \
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} while (0)
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#else
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/* vax doesn't support NaN */
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#define T_LIBM_CHECK_NAN(subtest, fn, arg) (void)(arg)
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#endif
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/* Check that the result of fn(arg) is +0.0 */
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#define T_LIBM_CHECK_PLUS_ZERO(subtest, fn, arg) do { \
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double r = fn(arg); \
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if (fabs(r) > 0.0 || signbit(r) != 0) \
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atf_tc_fail_nonfatal("subtest %u: " #fn "(%g) is %g not +0.0", \
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subtest, arg, r); \
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} while (0)
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/* Check that the result of fn(arg) is -0.0 */
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#define T_LIBM_CHECK_MINUS_ZERO(subtest, fn, arg) do { \
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double r = fn(arg); \
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if (fabs(r) > 0.0 || signbit(r) == 0) \
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atf_tc_fail_nonfatal("subtest %u: " #fn "(%g) is %g not -0.0", \
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subtest, arg, r); \
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} while (0)
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/* Some useful constants (for test vectors) */
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#ifndef __vax__ /* no NAN nor +/- INF on vax */
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#define T_LIBM_NAN (0.0 / 0.0)
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#define T_LIBM_PLUS_INF (+1.0 / 0.0)
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#define T_LIBM_MINUS_INF (-1.0 / 0.0)
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#endif
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/* One line definition of a simple test */
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#define ATF_LIBM_TEST(name, description) \
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ATF_TC(name); \
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ATF_TC_HEAD(name, tc) { atf_tc_set_md_var(tc, "descr", description); } \
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ATF_TC_BODY(name, tc)
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