explanation please

**JayCee++** · 09-30-2011

My understanding appears to be wrong; in the following snippet I define a Print as a routine but when I call it from within Main nothing happens; am I completely on the wrong track here about sub routines? I appreciate it is a silly bit of code but I am trying to understand calling a defined routine from another.

Code:

#include <windows.h>
#include <iostream>
#include "ShortColours.h"

using namespace std;

int Print()
{cout<<"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"<<'\n';
    for(int x(1);x<20;x++)
    cout<<"John"<<'\n';
    return 0;
 }

int main ()
{
   Print;
   return 0;
}

**Clairvoyant1332** · 09-30-2011

By doing this:

Code:

Print;

You're not actually calling the function. You're just referencing it, and since you're not using the reference in an expression, nothing happens.

You want to do this:

Code:

Print();

**rogster001** · 09-30-2011

you have to call your functions with () after them

**JayCee++** · 09-30-2011

Originally Posted by rogster001

you have to call your functions with () after them

Thanks all, I knew it would be something simple (like me!).

Can I do a supplementary; in one book it tells me to put Main as the last function so all the others are known about before you get there and in another it says just declare your functions first and have Main as your first 'real' function what would you guys recommend?

**laserlight** · 09-30-2011

Originally Posted by JayCee++

Can I do a supplementary; in one book it tells me to put Main as the last function so all the others are known about before you get there and in another it says just declare your functions first and have Main as your first 'real' function what would you guys recommend?

I recommend that you do as you please. When your programs become bigger, you will be making use of function declarations in header files, but within a source file you could well organise your functions such that the ones that are called by others in the same source file are defined first.

Oh, and note that the name of the global main function is main, not Main.

**vikasvijayan** · 10-03-2011

make the function call as print()

**Elysia** · 10-04-2011

This has already been mentioned:

Originally Posted by rogster001

you have to call your functions with () after them

And acknowledged:

Originally Posted by JayCee++

Thanks all, I knew it would be something simple (like me!).

**Rodaxoleaux** · 10-04-2011

Originally Posted by vikasvijayan

make the function call as print()

Gotta love folks that don't read anything but the first post in a thread

Thread: explanation please

Thread Tools

Search Thread

Display

explanation please

Similar Threads

Explanation pls

Need Explanation

Explanation Please

Explanation

Further Explanation