runoob_21_type_traits

/*
 * @Author: by777
 * @Date: 2025-03-24 17:01:21
 * @LastEditors: by777
 * @LastEditTime: 2025-03-24 17:02:58
 * @FilePath: /cxx_stl/runoob_21.cpp
 * @Description: https://www.runoob.com/cplusplus/cpp-libs-type_traits.html
 * 
 * Copyright (c) 2025 by by777, All Rights Reserved. 
 */
#include <iostream>
#include <type_traits> // 包含了一组编译时检查类型特性的工具,可以用于查询和操作类型属性
int main(int argc, const char** argv) {
    std::cout << "int is integral: " << std::is_integral<int>::value << std::endl;
    std::cout << "float is integral: " << std::is_integral<float>::value << std::endl;
    std::cout << "char is integral: " << std::is_integral<char>::value << std::endl;
    int a = 10;
    int* p = &a;
    std::cout << "int* is a pointer: " << std::is_pointer<int*>::value << std::endl;
    std::cout << "int is a pointer: " << std::is_pointer<int>::value << std::endl;
    return 0;
}