Re: Arrays in C++

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#666

From: Karl Heinz Buchegger
Date: Wed, 14 Feb 2001 15:44

74 lines
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richardcrane wrote:
> 
> can somebody help me iam a beginner in C++.  I want to pass an array between
> 3 different functions that are a user definable size.  what method is the
> best to start with as i dont have a clue.
> 

The C way:
**********

#include <stdio.h>

void Foo1( int* Array, int ArraySize )
{
  for( int i = 0; i < ArraySize; ++i )
    printf( "%d\n", Array[i] );
}

void Foo( int* Array, int ArraySize )
{
  Foo1( Array, ArraySize );
}

int main()
{
  const int Size = 10;
  int Test[Size];

  for( int i = 0; i < Size; ++i )
    Test[i] = 100 + i;

  Foo( Test, Size );

  return 0;
}

the C++ way:
************

#include <iostream>
#include <vector>

using namespace std;

typedef vector< int > IntArray;

void Foo1( IntArray& Array )
{
  for( int i = 0; i < Array.size(); ++i )
    cout << Array[i] << '\n';
}

void Foo( IntArray& Array )
{
  Foo1( Array );
}

int main()
{
  IntArray Test( 10 );

  for( int i = 0; i < Test.size(); ++i )
    Test[i] = 100 + i;

  Foo( Test );

  return 0;
}

-- 
Karl Heinz Buchegger
kbuchegg@gascad.at

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