insooth / VoidParam

VoidParam puzzle

Geek Repo:Geek Repo

Github PK Tool:Github PK Tool

VoidParam Puzzle

In the code:

template <typename T> T Process(const T& t) { return t; } 

#define PROCESS(x) Process(x)

PROCESS can be called with any parameter except 'void', Process(void) is illegal, for instance code bellow won't compile:

void GetVoid() {}

PROCESS(GetVoid())

What modifications should be made that for all parameters other than 'void', PROCESS works as before, but call PROCESS(GetVoid()) (as well as PROCESS(void()) throws exception that 'void' is not allowed as a parameter. Function 'Process' above should remain without modifications.

About

VoidParam puzzle


Languages

Language:C++ 100.0%