Generic function in C

[anoopsr]

hI,
IHave a doubt in writing a generic function in C.

Say for Example,

I need to add 2 numbers. 2 interger Numbers or 2 float Numbers using the same function add().
How do i call the add function i.e how do i send parameters.
How do i receive the parameters in add fucntion definition.

#include<stdio.h>

int main()
{
int choice;
int i1,i2;
float f1,f2;
printf("What type of number do u want to add?\n");
printf("1.Interger Nmbers\n2.Float Numbers\n Enter Choice:");
scanf("%d"&choice);

switch(choice)
{
case1:printf("Add Interger Numbers:");
scanf("%d"&i1);
scanf("%d"&i2);
/*call to a generic function add() */
/* HOW DO I SEND PARAMETERS IN THE FUNCTION CALL */
add( ???);
break;

case 2: printf("Add Float Numbers:");
scanf("%d"&f1);
scanf("%d"&f2);
/*call to a generic function add() */
/* HOW DO I SEND PARAMETERS IN THE FUNCTION CALL */
add( ???);
break;

}
}

/* HOW DO I RECEIVE THE PARAMETERS IN THE GENERIC FUNCTION ADD FOR BOTH FLOAT AND INT VALUES */

add(????)
{

...............
..............


}


Please Help. Its urgent.
Thanks in advance.

[gpraghuram]

You can achieve the add function to add two numbers by writing a #define for the same.
Try to work on that approach and ifu need help post again
raghuram

[ashitpro]

hI,
IHave a doubt in writing a generic function in C.

Say for Example,

I need to add 2 numbers. 2 interger Numbers or 2 float Numbers using the same function add().
How do i call the add function i.e how do i send parameters.
How do i receive the parameters in add fucntion definition.

#include<stdio.h>

int main()
{
int choice;
int i1,i2;
float f1,f2;
printf("What type of number do u want to add?\n");
printf("1.Interger Nmbers\n2.Float Numbers\n Enter Choice:");
scanf("%d"&choice);

switch(choice)
{
case1:printf("Add Interger Numbers:");
scanf("%d"&i1);
scanf("%d"&i2);
/*call to a generic function add() */
/* HOW DO I SEND PARAMETERS IN THE FUNCTION CALL */
add( ???);
break;

case 2: printf("Add Float Numbers:");
scanf("%d"&f1);
scanf("%d"&f2);
/*call to a generic function add() */
/* HOW DO I SEND PARAMETERS IN THE FUNCTION CALL */
add( ???);
break;

}
}

/* HOW DO I RECEIVE THE PARAMETERS IN THE GENERIC FUNCTION ADD FOR BOTH FLOAT AND INT VALUES */

add(????)
{

...............
..............


}


Please Help. Its urgent.
Thanks in advance.

Use variable argument list
check the following code.

#include<cstdarg>
#include<iostream>
#include<string>
 
using namespace std;
 
void add(char ch,...)
{
<spoonfed code removed-weaknessforcats>

[whodgson]

If as you indicate, you can only have one add function to service ints and floats you need to write an add() function using T (template) principles so that the compiler will write the relevant function specifics appropriate to ints or floats when they are identified for processing.
Ask yourself what does an add function do? A: it adds 2 int types or 2 float types. So this info should appear within the function parentheses. It is best to declare this function first before providing its implementation detail else where.