Array of Function Pointers error: Initialization from incompatible pointer type

Question

I want to create a function pointer array that holds an array of pointers to functions. But I keep getting the initialization from incompatible pointer type error at the fun_ptr fun_ptr_arr[3] = {fun1, fun2, fun3}; initializer.

I tried typedef void (*fun_ptr) (myStruct**,char**); but the error still persists and I'm not sure what went wrong.

struct myStruct
{
    char *value;
    struct myStruct *next;
}
typedef void (*fun_ptr) (myStruct**,char*[]);

void fun1 (myStruct **theStruct, const char **arguments) {};
void fun2 (myStruct **theStruct, const char **arguments) {};
void fun3 (myStruct **theStruct, const char **arguments) {};

void main()
{
    fun_ptr fun_ptr_arr[3] = {fun1, fun2, fun3};
}

And my error, for each of the functions

test.c:285:69: note: (near initialization for ‘fun_ptr_arr[0]’)
test.c:285:69: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  fun_ptr fun_ptr_arr[3] = {fun1, fun2, fun3};
                            ^~~~~~~~

Answer 1

Your prototype is typedef void (*fun_ptr) (myStruct**,char*[]);

Your functions are: void fun1 (myStruct **, const char **)

Note the extra const

Those are different types, and so, the compiler complains.