62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef POINTER_COMPARISON_TEST_HELPER_H
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#define POINTER_COMPARISON_TEST_HELPER_H
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#include <cstdint>
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#include <cassert>
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#include "test_macros.h"
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template <template <class> class CompareTemplate>
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void do_pointer_comparison_test() {
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typedef CompareTemplate<int*> Compare;
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typedef CompareTemplate<std::uintptr_t> UIntCompare;
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#if TEST_STD_VER > 11
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typedef CompareTemplate<void> VoidCompare;
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#else
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typedef Compare VoidCompare;
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#endif
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Compare comp;
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UIntCompare ucomp;
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VoidCompare vcomp;
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struct {
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int a, b;
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} local;
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int* pointers[] = {&local.a, &local.b, nullptr, &local.a + 1};
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for (int* lhs : pointers) {
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for (int* rhs : pointers) {
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std::uintptr_t lhs_uint = reinterpret_cast<std::uintptr_t>(lhs);
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std::uintptr_t rhs_uint = reinterpret_cast<std::uintptr_t>(rhs);
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assert(comp(lhs, rhs) == ucomp(lhs_uint, rhs_uint));
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assert(vcomp(lhs, rhs) == ucomp(lhs_uint, rhs_uint));
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}
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}
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}
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template <class Comp>
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void do_pointer_comparison_test(Comp comp) {
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struct {
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int a, b;
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} local;
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int* pointers[] = {&local.a, &local.b, nullptr, &local.a + 1};
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for (int* lhs : pointers) {
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for (int* rhs : pointers) {
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std::uintptr_t lhs_uint = reinterpret_cast<std::uintptr_t>(lhs);
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std::uintptr_t rhs_uint = reinterpret_cast<std::uintptr_t>(rhs);
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void* lhs_void = static_cast<void*>(lhs);
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void* rhs_void = static_cast<void*>(rhs);
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assert(comp(lhs, rhs) == comp(lhs_uint, rhs_uint));
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assert(comp(lhs_void, rhs_void) == comp(lhs_uint, rhs_uint));
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}
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}
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}
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#endif // POINTER_COMPARISON_TEST_HELPER_H
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