C++ Q16: dereferencing

发信人: careerchange (Stupid), 信区: Programming
标  题: C++ Q16: dereferencing
发信站: BBS 未名空间站 (Mon Aug  9 22:49:44 2010, 美东)

struct X {
  int foo() { return 0; }
} x;

struct Y {  static int (X::*p)(); };

int (X::*Y::p)()=&X::foo;

Given the declarations in the sample code above, which one of the following
invocations is correct?
a) (x.*Y::p)();
b) (x->*Y::p)();
c) (Y::p)(x);
d) (Y::x.*p)();
e) (x.Y::p)();