CODEWITHSUNDEEP
c++pointersoperators
Ralph
Ralph

Reputation: 89

Strange operator with pointers

I was reading some code and came across this thing. I don't have the whole context now save this line.

cout<<(*--*++ptr+1)<< endl;

this compiles fine and works when we input values in it..

its declaration is like this.

char ***ptr ;

What is this operator and is it included in the standard?

Upvotes: 1

Views: 106

Answers (1)

Adam Rosenfield
Adam Rosenfield

Reputation: 400174

It's not a single operator, it's a combination of several unary operators. It gets parsed like this:

*(--(*(++ptr))) + 1

So, ptr1 is first incremented, then dereferenced, then that value is decremented and dereferenced again.

Upvotes: 7

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