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group_lec_vector/catch_and_release.cpp

group_lec_vector/catch_and_release.cpp

#include < iostream >
#include < fstream >
#include   < vector >
#include   "Date.h"

int  main ()
{
  std :: vector < Date >  many_dates ;

  std :: ifstream infile ( "when.txt" );
   if ( ! infile . good ())
   {
    std :: cerr  <<   "Can't open file!"   <<  std :: endl ;
     return   1 ;
   }

   int  month ;
   int  day ;
   int  year ;

  std :: cout  <<   "The vector is currently storing "   <<  many_dates . size ()   <<   " dates."   <<  std :: endl ;

   // Read triples of numbers from a file, create Date objects, 
   // and push them onto the vector
   while (   ! ( infile  >>  month ). eof ()   )
   {
    infile  >>  day ;
    infile  >>  year ;
     //dynamically allocate a Date object
     Date  somedate ( month ,  day ,  year );
    many_dates . push_back ( somedate );
   }

  std :: cout  <<   "The vector now has "   <<  many_dates . size ()   <<   " dates."   <<  std :: endl ;

   // Do something with all of those dates. In this case, display each one
   for ( int  i = 0 ;  i < many_dates . size ();   ++ i )
   {
     Date  dp = many_dates [ i ];
    dp . display ();
   }


   return   0 ;
}

group_lec_vector/Date.cpp

group_lec_vector/Date.cpp

#include "Date.h"
#include < iostream >
using   namespace  std ;
//DATE CLASS DEFINITION
Date :: Date ( int  m ,   int  d ,   int  y )   //constructor
   :  month ( m ),  day ( d ),  year ( y )   //initialization list
{
}

void   Date :: display ()
{
  cout  <<  month  <<   '/'   <<  day  <<   '/'   <<  year  <<  endl ;
}

group_lec_vector/Date.h

#ifndef DATE_H #define DATE_H //DATE CLASS DECLARATION class Date { public: Date(int m, int d, int y); //constructor void display(); private: int month; int day; int year; }; #endif

group_lec_vector/Makefile

c_and_r: Date.o catch_and_release.o g++ Date.o catch_and_release.o -o c_and_r Date.o: Date.cpp Date.h g++ -c Date.cpp catch_and_release.o: catch_and_release.cpp g++ -c catch_and_release.cpp clean: rm -f *.o c_and_r

group_lec_vector/when.txt

6 15 1215 7 4 1776 7 28 1914 9 1 1939 9 2 1945 6 26 1948 1 28 1986