clibtest.cpp

thingking in c++（C++编程思想） 各章节课后练习的答案

//: C04:CLibTest.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
//{L} CLib
// Test the C-like library
#include "CLib.h"
#include <fstream>
#include <iostream>
#include <string>
#include <cassert>
using namespace std;

int main() {
  // Define variables at the beginning
  // of the block, as in C:
  CStash intStash, stringStash;
  int i;
  char* cp;
  ifstream in;
  string line;
  const int bufsize = 80;
  // Now remember to initialize the variables:
  initialize(&intStash, sizeof(int));
  for(i = 0; i < 100; i++)
    add(&intStash, &i);
  for(i = 0; i < count(&intStash); i++)
    cout << "fetch(&intStash, " << i << ") = "
         << *(int*)fetch(&intStash, i)
         << endl;
  // Holds 80-character strings:
  initialize(&stringStash, sizeof(char)*bufsize);
  in.open("CLibTest.cpp");
  assert(in);
  while(getline(in, line))
    add(&stringStash, line.c_str());
  i = 0;
  while((cp = (char*)fetch(&stringStash,i++))!=0)
    cout << "fetch(&stringStash, " << i << ") = "
         << cp << endl;
  cleanup(&intStash);
  cleanup(&stringStash);
} ///:~