global variable not comming up

[ozone]

i am trying to write the global variable b4 the initialization but its not working, i am trying to call odd into even and even into odd, but i am really stuck in here dont know what to do pls help me out.



#include "stdafx.h"
#include <iostream>

using namespace std;

void odd (int a)
{
if ((a%2) !=0)
cout << "the number is odd: ";
else even (d) ;
}

void even (int d)
{
if ((d%2) ==0)
cout << "The number is even: ";
else odd (a);
}
void decimal (float a, float b, float c)
{
if (c = a/b)
cout << "the number is decimal: ";

}
int main ()
{
int m;
do {
cout << "please enter number (0) to end: ";
cin >> m;
cout << odd;
cout << even;
cout << decimal;
}
while (m>0);

system ("pause");

return 0;
}

[vlad from moscow]

There is no any global variable in your proggam.

[ozone]

but what about the (odd and even) are they not global scope. i am a newbie, i just got stuck help me out pls. it keep telling me that "even is an undecleared identifier ";
if with examples. will be very glad

[vlad from moscow]

odd and even are functions that take one parameter. But you are calling them without speciifing function call syntax.

[ozone]

how do i specify it and how do i put them in one parameter. pls give example or do correction to ma mistake. thanks

[vlad from moscow]

Please read at least one book on C++ programming or stop to program in general

[BetterIdeaForTomorrow]

Those are functions not global variables.

And you call them by just putting their name followed by their parameters.

You don't use "cout" or "cin" to call functions.

[Catfish]

Hint: the system("PAUSE"); you used is no more a function than odd(), even() and decimal().

[ozone]

O.M.G @vlad am not the 1 who posted this it was ma cousin and he his a small boy trying to get something, and beside u dont need to discourage him, beside you also started from one place. i just logged in today and i need help on this question "If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000."

i dont know how to start with it.
am i going to use two variable to get started or what? and i am really having probs with the "for" loops i dont understand it well