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113 lines
4.7 KiB
C
113 lines
4.7 KiB
C
/*
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* PROJECT: ReactOS api tests
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* LICENSE: MIT (https://spdx.org/licenses/MIT)
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* PURPOSE: Tests for fabs / fabsf
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* COPYRIGHT: Copyright 2021 Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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/* Don't use the inline fabsf, unless required */
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#if !defined(_CRTBLD) && defined(_M_ARM)
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#define _CRTBLD
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#endif
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#include "math_helpers.h"
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#ifdef _MSC_VER
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#pragma function(fabs)
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// fabsf is not available as an intrinsic
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#endif
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static TESTENTRY_DBL s_fabs_tests[] =
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{
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/* Special values */
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{ 0x7FF0000000000000ull /* INF */, 0x7FF0000000000000ull /* INF */ },
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#ifndef _M_IX86
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{ 0x7FF0000000000001ull /* NAN(SNAN) */, 0x7FF0000000000001ull /* NAN(SNAN) */ },
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{ 0x7FF7FFFFFFFFFFFFull /* NAN(SNAN) */, 0x7FF7FFFFFFFFFFFFull /* NAN(SNAN) */ },
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#else
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{ 0x7FF0000000000001ull /* NAN(SNAN) */, 0x7FF8000000000001ull /* NAN */ },
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{ 0x7FF7FFFFFFFFFFFFull /* NAN(SNAN) */, 0x7FFFFFFFFFFFFFFFull /* NAN */ },
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#endif
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{ 0x7FF8000000000000ull /* NAN */, 0x7FF8000000000000ull /* NAN */ },
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{ 0x7FF8000000000001ull /* NAN */, 0x7FF8000000000001ull /* NAN */ },
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{ 0x7FFFFFFFFFFFFFFFull /* NAN */, 0x7FFFFFFFFFFFFFFFull /* NAN */ },
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{ 0xFFF0000000000000ull /* -INF */, 0x7FF0000000000000ull /* INF */ },
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#ifndef _M_IX86
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{ 0xFFF0000000000001ull /* -NAN(SNAN) */, 0xFFF0000000000001ull /* NAN(SNAN) */ },
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{ 0xFFF7FFFFFFFFFFFFull /* -NAN(SNAN) */, 0xFFF7FFFFFFFFFFFFull /* NAN(SNAN) */ },
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#else
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{ 0xFFF0000000000001ull /* -NAN(SNAN) */, 0xFFF8000000000001ull /* -NAN */ },
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{ 0xFFF7FFFFFFFFFFFFull /* -NAN(SNAN) */, 0xFFFFFFFFFFFFFFFFull /* -NAN */ },
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#endif
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{ 0xFFF8000000000000ull /* -NAN(IND) */, 0xFFF8000000000000ull /* -NAN(IND) */ },
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{ 0xFFF8000000000001ull /* -NAN */, 0xFFF8000000000001ull /* -NAN */ },
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{ 0xFFFFFFFFFFFFFFFFull /* -NAN */, 0xFFFFFFFFFFFFFFFFull /* -NAN */ },
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/* Some random floats */
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{ 0x0000000000000000 /* 0.000000000000000e+000 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
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{ 0x8000000000000000 /* -0.000000000000000e+000 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
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{ 0x0123456789abcdef /* 3.512700564088504e-303 */, 0x0123456789abcdef /* 3.512700564088504e-303 */ },
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{ 0x8123456789abcdef /* -3.512700564088504e-303 */, 0x0123456789abcdef /* 3.512700564088504e-303 */ },
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{ 0x472ad8b31f506c9e /* 6.969745516432332e+034 */, 0x472ad8b31f506c9e /* 6.969745516432332e+034 */ },
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{ 0xc72ad8b31f506c9e /* -6.969745516432332e+034 */, 0x472ad8b31f506c9e /* 6.969745516432332e+034 */ },
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{ 0x1d289e506fa47cb3 /* 3.261613668384938e-168 */, 0x1d289e506fa47cb3 /* 3.261613668384938e-168 */ },
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{ 0x9d289e506fa47cb3 /* -3.261613668384938e-168 */, 0x1d289e506fa47cb3 /* 3.261613668384938e-168 */ },
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};
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void Test_fabs(void)
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{
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int i;
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for (i = 0; i < _countof(s_fabs_tests); i++)
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{
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double x = u64_to_dbl(s_fabs_tests[i].x);
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double z = fabs(x);
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ok_eq_dbl_exact("fabs", s_fabs_tests[i].x, z, s_fabs_tests[i].result);
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}
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}
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static TESTENTRY_FLT s_fabsf_tests[] =
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{
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/* Special values */
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{ 0x7F800000 /* INF */, 0x7F800000 /* INF */ },
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{ 0x7F800001 /* NAN(SNAN) */, 0x7FC00001 /* NAN */ },
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{ 0x7FBFFFFF /* NAN(SNAN) */, 0x7FFFFFFF /* NAN */ },
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{ 0x7FC00000 /* NAN */, 0x7FC00000 /* NAN */ },
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{ 0x7FC00001 /* NAN */, 0x7FC00001 /* NAN */ },
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{ 0x7FCFFFFF /* NAN */, 0x7FCFFFFF /* NAN */ },
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{ 0xFF800000 /* -INF */, 0x7F800000 /* INF */ },
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{ 0xFF800001 /* -NAN(SNAN) */, 0xFFC00001 /* -NAN */ },
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{ 0xFFBFFFFF /* -NAN(SNAN) */, 0xFFFFFFFF /* -NAN */ },
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{ 0xFFC00000 /* -NAN(IND) */, 0xFFC00000 /* -NAN */ },
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{ 0xFFC00001 /* -NAN */, 0xFFC00001 /* -NAN */ },
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{ 0xFFCFFFFF /* -NAN */, 0xFFCFFFFF /* -NAN */ },
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/* Some random floats */
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{ 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
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{ 0x80000000 /* -0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
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{ 0x01234567 /* 2.998817e-038 */, 0x01234567 /* 2.998817e-038 */ },
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{ 0x81234567 /* -2.998817e-038 */, 0x01234567 /* 2.998817e-038 */ },
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{ 0x472ad8b3 /* 4.373670e+004 */, 0x472ad8b3 /* 4.373670e+004 */ },
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{ 0xc72ad8b3 /* -4.373670e+004 */, 0x472ad8b3 /* 4.373670e+004 */ },
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{ 0x1d289e50 /* 2.231646e-021 */, 0x1d289e50 /* 2.231646e-021 */ },
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{ 0x9d289e50 /* -2.231646e-021 */, 0x1d289e50 /* 2.231646e-021 */ },
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};
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void Test_fabsf(void)
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{
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int i;
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for (i = 0; i < _countof(s_fabsf_tests); i++)
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{
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float x = u32_to_flt(s_fabsf_tests[i].x);
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float z = fabsf(x);
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ok_eq_flt_exact("fabsf", s_fabsf_tests[i].x, z, s_fabsf_tests[i].result);
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}
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}
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START_TEST(fabs)
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{
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Test_fabs();
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Test_fabsf();
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}
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