1 /*
2 * PROJECT: ReactOS API tests
3 * LICENSE: MIT (https://spdx.org/licenses/MIT)
4 * PURPOSE: Tests for floor / floorf
5 * COPYRIGHT: Copyright 2021 Timo Kreuzer <timo.kreuzer@reactos.org>
6 */
7
8 #if !defined(_CRTBLD) && !defined(_M_IX86)
9 #define _CRTBLD // we don't want inline floorf!
10 #endif
11 #include "math_helpers.h"
12
13 #ifdef _MSC_VER
14 #pragma function(floor)
15 #ifdef _M_AMD64
16 #pragma function(floorf)
17 #endif
18 #endif
19
20 static TESTENTRY_DBL s_floor_tests[] =
21 {
22 /* Special values */
23 { 0x0000000000000000 /* 0.000000000000000e+000 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
24 { 0x8000000000000000 /* -0.000000000000000e+000 */, 0x8000000000000000 /* -0.000000000000000e+000 */ },
25 { 0x7ff0000000000000 /* 1.#INF00000000000e+000 */, 0x7ff0000000000000 /* 1.#INF00000000000e+000 */ },
26 { 0x7ff0000000000001 /* 1.#QNAN0000000000e+000 */, 0x7ff8000000000001 /* 1.#QNAN0000000000e+000 */ },
27 { 0x7ff7ffffffffffff /* 1.#QNAN0000000000e+000 */, 0x7fffffffffffffff /* 1.#QNAN0000000000e+000 */ },
28 { 0x7ff8000000000000 /* 1.#QNAN0000000000e+000 */, 0x7ff8000000000000 /* 1.#QNAN0000000000e+000 */ },
29 { 0x7ff8000000000001 /* 1.#QNAN0000000000e+000 */, 0x7ff8000000000001 /* 1.#QNAN0000000000e+000 */ },
30 { 0x7fffffffffffffff /* 1.#QNAN0000000000e+000 */, 0x7fffffffffffffff /* 1.#QNAN0000000000e+000 */ },
31 { 0xfff0000000000000 /* -1.#INF00000000000e+000 */, 0xfff0000000000000 /* -1.#INF00000000000e+000 */ },
32 { 0xfff0000000000001 /* -1.#QNAN0000000000e+000 */, 0xfff8000000000001 /* -1.#QNAN0000000000e+000 */ },
33 { 0xfff7ffffffffffff /* -1.#QNAN0000000000e+000 */, 0xffffffffffffffff /* -1.#QNAN0000000000e+000 */ },
34 { 0xfff8000000000000 /* -1.#IND00000000000e+000 */, 0xfff8000000000000 /* -1.#IND00000000000e+000 */ },
35 { 0xfff8000000000001 /* -1.#QNAN0000000000e+000 */, 0xfff8000000000001 /* -1.#QNAN0000000000e+000 */ },
36 { 0xffffffffffffffff /* -1.#QNAN0000000000e+000 */, 0xffffffffffffffff /* -1.#QNAN0000000000e+000 */ },
37
38 /* Some random doubles */
39 { 0x386580c747a3402b /* 5.055340589883462e-037 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
40 { 0xb74298e6627fb9ed /* -1.667860443847725e-042 */, 0xbff0000000000000 /* -1.000000000000000e+000 */ },
41 { 0x0ef25f06e414aa2d /* 1.128498317470960e-236 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
42 { 0x24002a37167638b5 /* 2.780001692929186e-135 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
43 { 0x44258d1be62a0d22 /* 1.987747995999515e+020 */, 0x44258d1be62a0d22 /* 1.987747995999515e+020 */ },
44 { 0x9ed4e46a65aad464 /* -3.715074250469020e-160 */, 0xbff0000000000000 /* -1.000000000000000e+000 */ },
45 { 0xc5afcd6f4ae4bf41 /* -4.921195330852160e+027 */, 0xc5afcd6f4ae4bf41 /* -4.921195330852160e+027 */ },
46 { 0x330fac896cbb01d2 /* 9.624395081137827e-063 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
47 { 0xc18026ab4c845405 /* -3.387120956461338e+007 */, 0xc18026ab50000000 /* -3.387121000000000e+007 */ },
48 { 0x2f42a7dc898a741a /* 4.916804395045249e-081 */, 0x0000000000000000 /* 0.000000000000000e+000 */ },
49 };
50
51
Test_floor(void)52 void Test_floor(void)
53 {
54 int i;
55
56 for (i = 0; i < _countof(s_floor_tests); i++)
57 {
58 double x = u64_to_dbl(s_floor_tests[i].x);
59 double z = floor(x);
60 ok_eq_dbl_exact("floor", s_floor_tests[i].x, z, s_floor_tests[i].result);
61 }
62 }
63
64 static TESTENTRY_FLT s_floorf_tests[] =
65 {
66 /* Special values */
67 { 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
68 { 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
69 { 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
70 { 0x00000001 /* 1.401298e-045 */, 0x00000000 /* 0.000000e+000 */ },
71 { 0xffffffff /* -1.#QNAN0e+000 */, 0xffffffff /* -1.#QNAN0e+000 */ },
72 { 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
73 { 0x00000001 /* 1.401298e-045 */, 0x00000000 /* 0.000000e+000 */ },
74 { 0xffffffff /* -1.#QNAN0e+000 */, 0xffffffff /* -1.#QNAN0e+000 */ },
75 { 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
76 { 0x00000001 /* 1.401298e-045 */, 0x00000000 /* 0.000000e+000 */ },
77 { 0xffffffff /* -1.#QNAN0e+000 */, 0xffffffff /* -1.#QNAN0e+000 */ },
78 { 0x00000000 /* 0.000000e+000 */, 0x00000000 /* 0.000000e+000 */ },
79 { 0x00000001 /* 1.401298e-045 */, 0x00000000 /* 0.000000e+000 */ },
80 { 0xffffffff /* -1.#QNAN0e+000 */, 0xffffffff /* -1.#QNAN0e+000 */ },
81
82 /* Some random floats */
83 { 0x386580c7 /* 5.471779e-005 */, 0x00000000 /* 0.000000e+000 */ },
84 { 0x47a3402b /* 8.358434e+004 */, 0x47a34000 /* 8.358400e+004 */ },
85 { 0xb74298e6 /* -1.159890e-005 */, 0xbf800000 /* -1.000000e+000 */ },
86 { 0x627fb9ed /* 1.179329e+021 */, 0x627fb9ed /* 1.179329e+021 */ },
87 { 0x0ef25f06 /* 5.974911e-030 */, 0x00000000 /* 0.000000e+000 */ },
88 { 0xe414aa2d /* -1.096952e+022 */, 0xe414aa2d /* -1.096952e+022 */ },
89 { 0x24002a37 /* 2.779133e-017 */, 0x00000000 /* 0.000000e+000 */ },
90 { 0x167638b5 /* 1.988962e-025 */, 0x00000000 /* 0.000000e+000 */ },
91 { 0x44258d1b /* 6.622048e+002 */, 0x44258000 /* 6.620000e+002 */ },
92 { 0xe62a0d22 /* -2.007611e+023 */, 0xe62a0d22 /* -2.007611e+023 */ },
93 };
94
Test_floorf(void)95 void Test_floorf(void)
96 {
97 int i;
98
99 for (i = 0; i < _countof(s_floorf_tests); i++)
100 {
101 float x = u32_to_flt(s_floorf_tests[i].x);
102 float z = floorf(x);
103 ok_eq_flt_exact("floorf", s_floorf_tests[i].x, z, s_floorf_tests[i].result);
104 }
105 }
106
START_TEST(floor)107 START_TEST(floor)
108 {
109 Test_floor();
110 Test_floorf();
111 }
112