use_new.cpp

来自「一本很好的C++学习的丛书！初学者必看的」· C++ 代码 · 共 23 行

// use_new.cpp -- using the new operator
#include <iostream>
int main()
{
    using namespace std;
    int * pt = new int;         // allocate space for an int
    *pt = 1001;                 // store a value there

    cout << "int ";
    cout << "value = " << *pt << ": location = " << pt << endl;

    double * pd = new double;   // allocate space for a double
    *pd = 10000001.0;           // store a double there

    cout << "double ";
    cout << "value = " << *pd << ": location = " << pd << endl;
    cout << "size of pt = " << sizeof(pt);
    cout << ": size of *pt = " << sizeof(*pt) << endl;
    cout << "size of pd = " << sizeof pd;
    cout << ": size of *pd = " << sizeof(*pd) << endl;
    return 0;
}