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cfunctionpointersgenerics
user3156262
user3156262

Reputation: 356

Calling multiple functions using some generic function call in C

I want to be able to call multiple functions using a single generic function call.

Currently I am trying to implement something like this:

main()
{
    generic();
}

A(){.....};

B(){.....};

C(){.....};

Where I call from main() some generic function, which, in turn, is supposed to be able to call the functions: A(), B(), C().

How can I implement this in C?

Upvotes: 2

Views: 1901

Answers (3)

nikhil mehta
nikhil mehta

Reputation: 1032

You can use function pointers, if all functions you want to call have same prototype.

Upvotes: 0

user207064
user207064

Reputation: 665

You have to use function pointers as below.

#include<stdio.h>
void A(void);
void B(void);
void C(void);
typedef void (*foo_ptr_t)( void );
foo_ptr_t foo_ptr_array[3]; //fucntion pointers of type foo_ptr_t
main()
{
    int i = 0;
    foo_ptr_array[0] = A; //assign function to each function pointer
    foo_ptr_array[1] = B;
    foo_ptr_array[2] = C;
    for(i = 0; i<3; i++)
        foo_ptr_array[i](); //call functions using function pointer
}

void A()
{
    printf("We are in A\n");
}

void B()
{
    printf("We are in B\n");
}

void C()
{
    printf("We are in C\n");
}

Upvotes: 1

AravindMS
AravindMS

Reputation: 49

You can do it by using function pointers. Please refer on "how to use function pointers in C"

Upvotes: 2

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