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#include <stdio.h>
void f1 (void) { printf("%i\n", 1); }
void f2 (void) { printf("%i\n", 2); }
void f3 (void) { printf("%i\n", 3); }
void f4 (void) { printf("%i\n", 4); }
void f5 (void) { printf("%i\n", 5); }
void f6 (void) { printf("%i\n", 6); }
void f7 (void) { printf("%i\n", 7); }
void f8 (void) { printf("%i\n", 8); }
void f9 (void) { printf("%i\n", 9); }
typedef void(*void_fp)(void);
struct state
{
int x; // Mutable!
const void_fp go;
};
struct state thing = {0, &f2};
struct state other_thing = {0, &f4};
struct state * const pts = &thing;
// There is a basic check that excludes all functions that aren't used anywhere
// This ensures that check can't work in this example
const void_fp fp_all[] = {f1, f2 ,f3, f4, f5 ,f6, f7, f8, f9};
void func(int i)
{
// Illegal
//pts=&other_thing;
// thing.go=&f6;
thing = other_thing;
const void_fp fp = pts->go;
fp();
}
int main()
{
for(int i=0;i<3;i++)
{
func(i);
}
return 0;
}
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