CODEWITHSUNDEEP
c++
Abdu
Abdu

Reputation: 135

What is "function()->" called?

This may be a very noobish question but what exactly is this called? I've seen function()-> many times and never found out what it is called. Also how can I create my own?

GetDocument()->SetModifiedFlag(1);

Upvotes: 1

Views: 93

Answers (2)

Christophe
Christophe

Reputation: 73376

If used for a function definition, it is called a return type declaration. 

auto myfunctiona() -> int 
{
    return 0; 
}

If it is used in an expression, it is the arrow operator which dereferences a pointer to access a member. In your example, the function GetDocument() needs to return a pointer to an object. The type of that object must have a member function SetModifiedFlag().

Upvotes: 1

HolyBlackCat
HolyBlackCat

Reputation: 96126

This contsruction has no name, because there is nothing special about it.

It's just operator -> applied to a value returned by function().

Upvotes: 8

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