Code:
// Fig. 7.14: fig07_14.cpp
// Passing arrays and individual array elements to functions.
#include <iostream>
using std::cout;
using std::endl;
#include <iomanip>
using std::setw;
void modifyArray( int[]); // appears strange
void modifyElement( int );
int main()
{
const int arraySize = 5; // size of array a
int a[ arraySize ] = { 0, 1, 2, 3, 4 }; // initialize array a
cout << "Effects of passing entire array by reference:"
<< "\n\nThe values of the original array are:\n";
// output original array elements
for ( int i = 0; i < arraySize; i++ )
cout << setw( 3 ) << a[ i ];
cout << endl;
// pass array a to modifyArray by reference
modifyArray( a );
cout << "The values of the modified array are:\n";
// output modified array elements
for ( int j = 0; j < 6; j++ )
cout << setw( 3 ) << a[ j ];
cout << "\n\n\nEffects of passing array element by value:"
<< "\n\na[3] before modifyElement: " << a[ 3 ] << endl;
modifyElement( a[ 3 ] ); // pass array element a[ 3 ] by value
cout << "a[3] after modifyElement: " << a[ 3 ] << endl;
return 0; // indicates successful termination
} // end main
// in function modifyArray, "b" points to the original array "a" in memory
void modifyArray( int b[])
{
// multiply each array element by 2
for ( int k = 0; k < 6; k++ )
b[ k ] *= 2;
} // end function modifyArray
// in function modifyElement, "e" is a local copy of
// array element a[ 3 ] passed from main
void modifyElement( int e )
{
// multiply parameter by 2
cout << "Value of element in modifyElement: " << ( e *= 2 ) << endl;
} // end function modifyElement
after compiling this and running the prog
I get something strange
see the code above "cout << "\n\n\nEffects of passing array element by value:"
it should have print 0 2 4 6 8
only but when i run I get one more number beside "8" which is "88013984"