class cow { public: void moo (char *); }; void f() { cow* c; void (cow::*fp0)(char*) = &cow::moo; // OK void (cow::*fp1)(int) = &cow::moo; // ERROR - conversion int (cow::*fp2)(char*) = &cow::moo; // ERROR - conversion int (cow::*fp3)(char*, void*) = fp2; // ERROR - conversion int (cow::*fp4)(double) = (int (cow::*)(double)) fp2; // OK }