| #include <stdio.h> | |
| struct OP { | |
| void (*func)(struct OP*); | |
| }; | |
| void bar(struct OP *op); | |
| void foo(struct OP *op) { | |
| printf("Foo\n"); | |
| op->func = bar; | |
| } | |
| void bar(struct OP *op) { | |
| printf("Bar\n"); | |
| op->func = foo; | |
| } | |
| int main(int argc, char **argv) { | |
| int i; | |
| struct OP op; | |
| op.func = foo; | |
| for(i = 0; i < 10; ++i) { | |
| op.func(&op); | |
| } | |
| return 0; | |
| } | |