main.cpp

一本语言类编程书籍

// Exercise 10.2 Using a global variable to count calls to print().  File: main.cpp
// Only this file and print.cpp are different from Ex 10.1. 

#include "printthis.h"
#include "printthat.h"

#include <iostream>            // ADDED
using std::cout;               // ADDED
using std::endl;               // ADDED
extern int print_count = 0;    // Counts calls to print() ADDED

int main(){
  print_this("This is a test string using printthis().");
  print_that("This is a test string using printthat().");

  cout << "The print() function has been called a total of " // ADDED
       << print_count << " times. " << endl;                 // ADDED

  return 0;
}