C++ operator new 重载(两个参数）

#include <iostream>

class A
{
public:
	int i;

public:
	void* operator new (size_t a, size_t b)
	{
		std::cout << "a: " << a << ",b: " << b << std::endl;
		return NULL;
	}
};

int main()
{
	A *pInt = NULL;
	pInt = new (10)A;
        return 0;
}

Result of ouput:

PS:

    还可以有多个参数：void* operator new (size_t classSize, int paraA, int paraB, int paraC);

    写法： ClassA *pClassA = new (paraA, paraB, paraC)ClassA;

转载于:https://www.cnblogs.com/zhanghang-BadCoder/p/6476457.html