comparison: test/test_compare.cpp
test/test_compare.cpp
- changeset 631
- 406376e64fd8
- child 650
- 77021e06b1a8
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| 630:ac5e7f789048 | 631:406376e64fd8 |
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2022 Mike Becker, Olaf Wintermann All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include "cx/compare.h" | |
| 30 | |
| 31 #include <gtest/gtest.h> | |
| 32 | |
| 33 template<typename T> | |
| 34 static void test_compare( | |
| 35 int (*fnc)( | |
| 36 void const *, | |
| 37 void const * | |
| 38 ) | |
| 39 ) { | |
| 40 auto m = std::numeric_limits<T>::max() / 400; | |
| 41 T x, y; | |
| 42 | |
| 43 x = (std::is_signed_v<T> ? -3 : 3) * m; | |
| 44 y = 5 * m; | |
| 45 EXPECT_LT(fnc(&x, &y), 0); | |
| 46 EXPECT_GT(fnc(&y, &x), 0); | |
| 47 | |
| 48 x = 120 * m; | |
| 49 y = 348 * m; | |
| 50 EXPECT_LT(fnc(&x, &y), 0); | |
| 51 EXPECT_GT(fnc(&y, &x), 0); | |
| 52 | |
| 53 if constexpr (std::is_signed_v<T>) { | |
| 54 x = -120 * m; | |
| 55 y = -348 * m; | |
| 56 EXPECT_GT(fnc(&x, &y), 0); | |
| 57 EXPECT_LT(fnc(&y, &x), 0); | |
| 58 } | |
| 59 | |
| 60 x = y; | |
| 61 EXPECT_EQ(fnc(&x, &y), 0); | |
| 62 EXPECT_EQ(fnc(&y, &x), 0); | |
| 63 } | |
| 64 | |
| 65 TEST(Compare, Int) { | |
| 66 test_compare<int>(cx_cmp_int); | |
| 67 } | |
| 68 | |
| 69 TEST(Compare, Longint) { | |
| 70 test_compare<long int>(cx_cmp_longint); | |
| 71 } | |
| 72 | |
| 73 TEST(Compare, Longlong) { | |
| 74 test_compare<long long>(cx_cmp_longlong); | |
| 75 } | |
| 76 | |
| 77 TEST(Compare, Int16) { | |
| 78 test_compare<int16_t>(cx_cmp_int16); | |
| 79 } | |
| 80 | |
| 81 TEST(Compare, Int32) { | |
| 82 test_compare<int32_t>(cx_cmp_int32); | |
| 83 } | |
| 84 | |
| 85 TEST(Compare, Int64) { | |
| 86 test_compare<int64_t>(cx_cmp_int64); | |
| 87 } | |
| 88 | |
| 89 TEST(Compare, Uint) { | |
| 90 test_compare<uint>(cx_cmp_uint); | |
| 91 } | |
| 92 | |
| 93 TEST(Compare, Ulongint) { | |
| 94 test_compare<unsigned long int>(cx_cmp_ulongint); | |
| 95 } | |
| 96 | |
| 97 TEST(Compare, Ulonglong) { | |
| 98 test_compare<unsigned long long>(cx_cmp_ulonglong); | |
| 99 } | |
| 100 | |
| 101 TEST(Compare, Uint16) { | |
| 102 test_compare<uint16_t>(cx_cmp_uint16); | |
| 103 } | |
| 104 | |
| 105 TEST(Compare, Uint32) { | |
| 106 test_compare<uint32_t>(cx_cmp_uint32); | |
| 107 } | |
| 108 | |
| 109 TEST(Compare, Uint64) { | |
| 110 test_compare<uint64_t>(cx_cmp_uint64); | |
| 111 } | |
| 112 | |
| 113 TEST(Compare, Float) { | |
| 114 test_compare<float>(cx_cmp_float); | |
| 115 } | |
| 116 | |
| 117 TEST(Compare, Double) { | |
| 118 test_compare<double>(cx_cmp_double); | |
| 119 } | |
| 120 | |
| 121 TEST(Compare, IntPtr) { | |
| 122 test_compare<intptr_t>(cx_cmp_intptr); | |
| 123 } | |
| 124 | |
| 125 TEST(Compare, UintPtr) { | |
| 126 test_compare<uintptr_t>(cx_cmp_uintptr); | |
| 127 } |
