invalid initialization of reference of type

Question

There is a function isInstruction() in my code (not mine) which is used for setting and getting a member with no problem. Now I added my own function for similar purpose state(). Like this:

struct foo { bool & isInstruction() { return isInst; // no problem } int & state() { return state; //ERROR } private: bool isInst; int state; };

I have no problem with the first function. But for the second one, I get

error: invalid initialization of reference of type ‘int&’ from expression of type ‘<unresolved overloaded function type>’

Then question is what is the difference between these two functions. Am I missing something?

Please show the full error message.

Some programmer dude
– Some programmer dude

2013-01-10 17:55:45 +00:00
Commented Jan 10, 2013 at 17:55 — Some programmer dude
– Some programmer dude, Commented Jan 10, 2013 at 17:55

NPE · Accepted Answer · 2013-01-10 17:55:46Z

The difference is that the two entities (the member variable and the member function) are sharing the same name, state, which is what's causing the problem.

Try renaming one of them.

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