Function pointer and variable length parameter list

For exampleCodeFragment:

Int add (int A, int B) {return a + B;} void my_test (int * val, INT (* func) (INT, INT) {int A = 100, B = 200; * val = func (a, B);} void my_test2 (int * val ,...) {int A = 100, B = 200; int (* func) (INT, INT) = * (INT (**) (INT, INT )) (& Val + 1); * val = func (a, B);} int main (INT argc, char ** argv) {int val1 = 0, val2 = 0; my_test (& val1, add); printf ("val1: % d \ n", val1); my_test2 (& val2, add); printf ("val2: % d \ n ", val2); Return 0 ;}

Note: In my_test2, use a pointer pointing to the function pointer to take the value from the stack.

Note: The method here is very bad. varargs is used for variable parameters. Here is just an example.