Mon, 18 Dec 2023 16:14:07 +0100
make cx_cmp_ptr default comparator for pointer lists - relates to #340
universe@631 | 1 | /* |
universe@631 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@631 | 3 | * |
universe@631 | 4 | * Copyright 2022 Mike Becker, Olaf Wintermann All rights reserved. |
universe@631 | 5 | * |
universe@631 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@631 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@631 | 8 | * |
universe@631 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@631 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@631 | 11 | * |
universe@631 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@631 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@631 | 14 | * documentation and/or other materials provided with the distribution. |
universe@631 | 15 | * |
universe@631 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@631 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@631 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@631 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@631 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@631 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@631 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@631 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@631 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@631 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@631 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@631 | 27 | */ |
universe@631 | 28 | |
universe@631 | 29 | #include "cx/compare.h" |
universe@631 | 30 | |
universe@631 | 31 | #include <gtest/gtest.h> |
universe@631 | 32 | |
universe@631 | 33 | template<typename T> |
universe@631 | 34 | static void test_compare( |
universe@631 | 35 | int (*fnc)( |
universe@631 | 36 | void const *, |
universe@631 | 37 | void const * |
universe@631 | 38 | ) |
universe@631 | 39 | ) { |
universe@631 | 40 | auto m = std::numeric_limits<T>::max() / 400; |
universe@631 | 41 | T x, y; |
universe@631 | 42 | |
universe@631 | 43 | x = (std::is_signed_v<T> ? -3 : 3) * m; |
universe@631 | 44 | y = 5 * m; |
universe@631 | 45 | EXPECT_LT(fnc(&x, &y), 0); |
universe@631 | 46 | EXPECT_GT(fnc(&y, &x), 0); |
universe@631 | 47 | |
universe@631 | 48 | x = 120 * m; |
universe@631 | 49 | y = 348 * m; |
universe@631 | 50 | EXPECT_LT(fnc(&x, &y), 0); |
universe@631 | 51 | EXPECT_GT(fnc(&y, &x), 0); |
universe@631 | 52 | |
universe@631 | 53 | if constexpr (std::is_signed_v<T>) { |
universe@631 | 54 | x = -120 * m; |
universe@631 | 55 | y = -348 * m; |
universe@631 | 56 | EXPECT_GT(fnc(&x, &y), 0); |
universe@631 | 57 | EXPECT_LT(fnc(&y, &x), 0); |
universe@631 | 58 | } |
universe@631 | 59 | |
universe@631 | 60 | x = y; |
universe@631 | 61 | EXPECT_EQ(fnc(&x, &y), 0); |
universe@631 | 62 | EXPECT_EQ(fnc(&y, &x), 0); |
universe@631 | 63 | } |
universe@631 | 64 | |
universe@631 | 65 | TEST(Compare, Int) { |
universe@631 | 66 | test_compare<int>(cx_cmp_int); |
universe@631 | 67 | } |
universe@631 | 68 | |
universe@631 | 69 | TEST(Compare, Longint) { |
universe@631 | 70 | test_compare<long int>(cx_cmp_longint); |
universe@631 | 71 | } |
universe@631 | 72 | |
universe@631 | 73 | TEST(Compare, Longlong) { |
universe@631 | 74 | test_compare<long long>(cx_cmp_longlong); |
universe@631 | 75 | } |
universe@631 | 76 | |
universe@631 | 77 | TEST(Compare, Int16) { |
universe@631 | 78 | test_compare<int16_t>(cx_cmp_int16); |
universe@631 | 79 | } |
universe@631 | 80 | |
universe@631 | 81 | TEST(Compare, Int32) { |
universe@631 | 82 | test_compare<int32_t>(cx_cmp_int32); |
universe@631 | 83 | } |
universe@631 | 84 | |
universe@631 | 85 | TEST(Compare, Int64) { |
universe@631 | 86 | test_compare<int64_t>(cx_cmp_int64); |
universe@631 | 87 | } |
universe@631 | 88 | |
universe@631 | 89 | TEST(Compare, Uint) { |
universe@650 | 90 | test_compare<unsigned int>(cx_cmp_uint); |
universe@631 | 91 | } |
universe@631 | 92 | |
universe@631 | 93 | TEST(Compare, Ulongint) { |
universe@631 | 94 | test_compare<unsigned long int>(cx_cmp_ulongint); |
universe@631 | 95 | } |
universe@631 | 96 | |
universe@631 | 97 | TEST(Compare, Ulonglong) { |
universe@631 | 98 | test_compare<unsigned long long>(cx_cmp_ulonglong); |
universe@631 | 99 | } |
universe@631 | 100 | |
universe@631 | 101 | TEST(Compare, Uint16) { |
universe@631 | 102 | test_compare<uint16_t>(cx_cmp_uint16); |
universe@631 | 103 | } |
universe@631 | 104 | |
universe@631 | 105 | TEST(Compare, Uint32) { |
universe@631 | 106 | test_compare<uint32_t>(cx_cmp_uint32); |
universe@631 | 107 | } |
universe@631 | 108 | |
universe@631 | 109 | TEST(Compare, Uint64) { |
universe@631 | 110 | test_compare<uint64_t>(cx_cmp_uint64); |
universe@631 | 111 | } |
universe@631 | 112 | |
universe@631 | 113 | TEST(Compare, Float) { |
universe@631 | 114 | test_compare<float>(cx_cmp_float); |
universe@631 | 115 | } |
universe@631 | 116 | |
universe@631 | 117 | TEST(Compare, Double) { |
universe@631 | 118 | test_compare<double>(cx_cmp_double); |
universe@631 | 119 | } |
universe@631 | 120 | |
universe@631 | 121 | TEST(Compare, IntPtr) { |
universe@631 | 122 | test_compare<intptr_t>(cx_cmp_intptr); |
universe@631 | 123 | } |
universe@631 | 124 | |
universe@631 | 125 | TEST(Compare, UintPtr) { |
universe@631 | 126 | test_compare<uintptr_t>(cx_cmp_uintptr); |
universe@631 | 127 | } |
universe@762 | 128 | |
universe@762 | 129 | TEST(Compare, Ptr) { |
universe@762 | 130 | int data[3]; |
universe@762 | 131 | EXPECT_EQ(0, cx_cmp_ptr(data, data)); |
universe@762 | 132 | EXPECT_EQ(-1, cx_cmp_ptr(&data[0], &data[1])); |
universe@762 | 133 | EXPECT_EQ(-1, cx_cmp_ptr(&data[1], &data[2])); |
universe@762 | 134 | EXPECT_EQ(1, cx_cmp_ptr(&data[2], &data[1])); |
universe@762 | 135 | EXPECT_EQ(1, cx_cmp_ptr(&data[1], data)); |
universe@762 | 136 | EXPECT_EQ(0, cx_cmp_ptr(&data[1], &data[1])); |
universe@762 | 137 | } |