116 lines
No EOL
4 KiB
C++
116 lines
No EOL
4 KiB
C++
// nameof() c++11 example
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//
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// Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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// Copyright (c) 2018 Terik23 <neargye@gmail.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include <nameof.hpp>
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#include <iostream>
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#include <stdexcept>
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struct SomeStruct {
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int SomeField;
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void SomeMethod1() { std::cout << "No called!" << std::endl; }
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int SomeMethod2() {
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std::cout << "No called!" << std::endl;
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return 1;
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}
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};
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void SomeMethod3() { std::cout << "No called!" << std::endl; }
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struct Long {
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struct LL {
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int LLLField;
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};
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LL LLField;
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};
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int someVar = 0;
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enum class Color { RED, GREEN, BLUE };
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void TestCase1() {
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SomeStruct someVar;
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Long otherVar;
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int intValue;
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SomeStruct* ptrVar;
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SomeStruct** ptrptrVar;
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constexpr auto constexpr_work_fine = NAMEOF(intValue);
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std::cout << constexpr_work_fine << std::endl; // intValue
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std::cout << NAMEOF(someVar) << std::endl; // someVar
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std::cout << NAMEOF(Color::RED) << std::endl; // RED
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std::cout << NAMEOF(someVar.SomeField) << std::endl; // SomeField
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std::cout << NAMEOF((&someVar)->SomeField) << std::endl; // SomeField
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std::cout << NAMEOF(::someVar) << std::endl; // someVar
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std::cout << NAMEOF(otherVar.LLField.LLLField) << std::endl; // LLLField
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std::cout << NAMEOF(&someVar) << std::endl; // someVar
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std::cout << NAMEOF(ptrVar) << std::endl; // ptrVar
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std::cout << NAMEOF(*ptrVar) << std::endl; // ptrVar
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std::cout << NAMEOF(ptrptrVar) << std::endl; // ptrptrVar
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std::cout << NAMEOF(*ptrptrVar) << std::endl; // ptrptrVar
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std::cout << NAMEOF(**ptrptrVar) << std::endl; // ptrptrVar
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std::cout << NAMEOF(+intValue) << std::endl; // intValue
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std::cout << NAMEOF(-intValue) << std::endl; // intValue
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std::cout << NAMEOF(~intValue) << std::endl; // intValue
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std::cout << NAMEOF(!intValue) << std::endl; // intValue
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std::cout << NAMEOF(someVar.SomeMethod1()) << std::endl; // SomeMethod1()
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std::cout << NAMEOF(&SomeStruct::SomeMethod2) << std::endl; // SomeMethod2
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std::cout << NAMEOF(SomeMethod3) << std::endl; // SomeMethod3
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std::cout << NAMEOF_TYPE(int[]) << std::endl; // int[]
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std::cout << NAMEOF_TYPE(SomeStruct) << std::endl; // SomeStruct
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std::cout << NAMEOF_TYPE(Long::LL) << std::endl; // LL
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std::cout << NAMEOF_FULL(someVar.SomeField) << std::endl; // someVar.SomeField
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std::cout << NAMEOF_FULL(&SomeStruct::SomeMethod2) << std::endl; // &SomeStruct::SomeMethod2
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}
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void TestCase2() {
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auto div = [](int x, int y) {
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if (y == 0) {
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throw std::invalid_argument(std::string(NAMEOF(y)).append(" should not be zero!"));
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}
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return x / y;
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};
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try {
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const int z = div(10, 0);
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std::cout << z << std::endl;
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} catch (const std::exception& e) {
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std::cout << e.what() << std::endl; // y should not be zero!
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}
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}
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void TestCase3() {
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std::cout << NAMEOF(TestCase3) << " method entry" << std::endl; // TestCase3 method entry
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}
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int main() {
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TestCase1();
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TestCase2();
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TestCase3();
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return 0;
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} |