universe@631: /*
universe@631:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@631:  *
universe@631:  * Copyright 2022 Mike Becker, Olaf Wintermann All rights reserved.
universe@631:  *
universe@631:  * Redistribution and use in source and binary forms, with or without
universe@631:  * modification, are permitted provided that the following conditions are met:
universe@631:  *
universe@631:  *   1. Redistributions of source code must retain the above copyright
universe@631:  *      notice, this list of conditions and the following disclaimer.
universe@631:  *
universe@631:  *   2. Redistributions in binary form must reproduce the above copyright
universe@631:  *      notice, this list of conditions and the following disclaimer in the
universe@631:  *      documentation and/or other materials provided with the distribution.
universe@631:  *
universe@631:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@631:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@631:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@631:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@631:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@631:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@631:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@631:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@631:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@631:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@631:  * POSSIBILITY OF SUCH DAMAGE.
universe@631:  */
universe@631: 
universe@631: #include "cx/compare.h"
universe@631: 
universe@631: #include <gtest/gtest.h>
universe@631: 
universe@631: template<typename T>
universe@631: static void test_compare(
universe@631:         int (*fnc)(
universe@631:                 void const *,
universe@631:                 void const *
universe@631:         )
universe@631: ) {
universe@631:     auto m = std::numeric_limits<T>::max() / 400;
universe@631:     T x, y;
universe@631: 
universe@631:     x = (std::is_signed_v<T> ? -3 : 3) * m;
universe@631:     y = 5 * m;
universe@631:     EXPECT_LT(fnc(&x, &y), 0);
universe@631:     EXPECT_GT(fnc(&y, &x), 0);
universe@631: 
universe@631:     x = 120 * m;
universe@631:     y = 348 * m;
universe@631:     EXPECT_LT(fnc(&x, &y), 0);
universe@631:     EXPECT_GT(fnc(&y, &x), 0);
universe@631: 
universe@631:     if constexpr (std::is_signed_v<T>) {
universe@631:         x = -120 * m;
universe@631:         y = -348 * m;
universe@631:         EXPECT_GT(fnc(&x, &y), 0);
universe@631:         EXPECT_LT(fnc(&y, &x), 0);
universe@631:     }
universe@631: 
universe@631:     x = y;
universe@631:     EXPECT_EQ(fnc(&x, &y), 0);
universe@631:     EXPECT_EQ(fnc(&y, &x), 0);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Int) {
universe@631:     test_compare<int>(cx_cmp_int);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Longint) {
universe@631:     test_compare<long int>(cx_cmp_longint);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Longlong) {
universe@631:     test_compare<long long>(cx_cmp_longlong);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Int16) {
universe@631:     test_compare<int16_t>(cx_cmp_int16);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Int32) {
universe@631:     test_compare<int32_t>(cx_cmp_int32);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Int64) {
universe@631:     test_compare<int64_t>(cx_cmp_int64);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Uint) {
universe@650:     test_compare<unsigned int>(cx_cmp_uint);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Ulongint) {
universe@631:     test_compare<unsigned long int>(cx_cmp_ulongint);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Ulonglong) {
universe@631:     test_compare<unsigned long long>(cx_cmp_ulonglong);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Uint16) {
universe@631:     test_compare<uint16_t>(cx_cmp_uint16);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Uint32) {
universe@631:     test_compare<uint32_t>(cx_cmp_uint32);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Uint64) {
universe@631:     test_compare<uint64_t>(cx_cmp_uint64);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Float) {
universe@631:     test_compare<float>(cx_cmp_float);
universe@631: }
universe@631: 
universe@631: TEST(Compare, Double) {
universe@631:     test_compare<double>(cx_cmp_double);
universe@631: }
universe@631: 
universe@631: TEST(Compare, IntPtr) {
universe@631:     test_compare<intptr_t>(cx_cmp_intptr);
universe@631: }
universe@631: 
universe@631: TEST(Compare, UintPtr) {
universe@631:     test_compare<uintptr_t>(cx_cmp_uintptr);
universe@631: }
universe@762: 
universe@762: TEST(Compare, Ptr) {
universe@762:     int data[3];
universe@762:     EXPECT_EQ(0, cx_cmp_ptr(data, data));
universe@762:     EXPECT_EQ(-1, cx_cmp_ptr(&data[0], &data[1]));
universe@762:     EXPECT_EQ(-1, cx_cmp_ptr(&data[1], &data[2]));
universe@762:     EXPECT_EQ(1, cx_cmp_ptr(&data[2], &data[1]));
universe@762:     EXPECT_EQ(1, cx_cmp_ptr(&data[1], data));
universe@762:     EXPECT_EQ(0, cx_cmp_ptr(&data[1], &data[1]));
universe@762: }