addone.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 33 行

#include <iostream>
using namespace std;

void add_one_refs(long & n);   
void add_one_ptrs(long * n);   

int main()
{
    long salary = 250000;

    cout << "Current salary: $" << salary << endl;

    add_one_ptrs(&salary);

    cout << "After the first raise: $" << salary << endl;

    add_one_refs(salary);

    cout << "After the second raise: $" << salary << endl;

    return 0;
}

void add_one_refs(long & n)
{
    n++;
}
   
void add_one_ptrs(long * n)
{
    (*n)++;
}