nesttest.cpp

Thinking in C++ 2nd edition source code which are all the cores of the book Thinking in C++ second e

//: C04:NestTest.cpp
// From Thinking in C++, 2nd Edition
// at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
//{L} Nested
//{T} NestTest.cpp
// Test of nested linked list
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include "../require.h"
#include "Nested.h"
using namespace std;

int main(int argc, char* argv[]) {
  Stack textlines;
  FILE* file;
  char* s;
  #define BUFSIZE 100
  char buf[BUFSIZE];
  requireArgs(argc,  2); // File name is argument
  textlines.initialize();
  file = fopen(argv[1], "r");
  require(file != 0);
  // Read file and store lines in the Stack:
  while(fgets(buf, BUFSIZE, file)) {
    char* string =(char*)malloc(strlen(buf)+1);
    require(string != 0);
    strcpy(string, buf);
    textlines.push(string);
  }
  // Pop the lines from the Stack and print them:
  while((s = (char*)textlines.pop()) != 0) {
    printf("%s", s); free(s); }
  textlines.cleanup();
} ///:~