Function prototype problems

[hydroJ]

not exactly sure what I am doing wrong here...

advice?

//******************************************************************
// LeapYear program
// This program inputs at year and prints whether the year 
// is a leap year or not
//******************************************************************

#include <iostream>		// Access output stream

using namespace std; 

bool isLeapYear( int );		// Prototype for subalgorithm	
 
int main() {
    int year;
    cout << "Enter a year AD, for example, 1997." 
      << endl;  		// Prompt for input
    cin >> year;                   // Read year
  
    if (isLeapYear ( year ) )          // Test for leap year
        cout << year << " is a leap year."  << endl;          
    else 
        cout << year << " is not a leap year."  << endl;
  
    return 0;
}

// *****************************************************************

bool isLeapYear( int year )
// IsLeapYear returns true if year is a leap year and
// false otherwise.

{
    if (year % 4 != 0)            // Is year not divisible by 4?
        return false;             // If so, can't be a leap year
    else if (year % 100 !=  0)    // Is year not a multiple of 100?
        return true;              // If so, is a leap year
    else if (year % 400 != 0)     // Is year not a multiple of 400?
        return false;		    // If so, then is not a leap year
    else 
        return true;              // Is a leap year
}

[firedraco]

Use code tags: http://cplusplus.com/articles/z13hAqkS/

And what's the error?

[hydroJ]

two errors


_main already defined

fatal error LNK1169: one or more multiply defined symbols found

[TheMassiveChipmunk]

Try making the program again in a different project. The code worked for me.

[hydroJ]

that did it.

thanks.