User Decined Functions

[jag254]

I have a project in my C Programing class,but I am having a little trouble.I have to create a user defind function, for finding the volume of a sphere given the radius.

The function should be called "sphere_volume) and called from the main program.

When it is called from the main program it will look like this: sphere_volume(r);

This is what I have so far but I keep getting errors. Any suggestions? THANKS

// Class Redo.cpp : Defines the entry point for the console application.

#include "stdafx.h"
#include "math.h"

double sphere_volume(double r, int v);


int/* _t */ main (void) //(int argc, _TCHAR* argv[])
{
double r,
v;

/* ASK FOR RADIUS */

printf("Enter the radius of the circle:"),
scanf ("%lf", &r);

/* OUTPUT VOLUME */

printf("The volume is %f \n",sphere_volume (r));


return 0;
}

double sphere_volume ( double r)
{
v=4/3*3.14*pow(r,3) ;
return (v);
}

[cas]

When you get errors, you should mention what they are instead of simply saying they happened.

I see one obvious problem: Your prototype for sphere_volume() doesn't match the function definition.

[Adak]

I see another easy error - your program is C++, and you've posted this on the C board.