如何在C++中跟踪内存分配(尤其是新建/删除)

#include<iostream>
#include <cstdlib>
#include <cstring>

using namespace std;

void* operator new(size_t size) {
    void* ptr = malloc(size);
    cout << "Allocated "<< size << " bytes at "<< ptr<< endl;
    return ptr;
}

void operator delete(void* ptr) noexcept {
    free(ptr);
    cout << "Deallocated memory at "<< ptr<< endl;
}

int main() {
    int* a = new int(10);
    delete a;

    char* b = new char[100];
    delete[] b;

    return 0;
}