Assignment is treated as initialization

Asked May 31 '15 at 12:44

Active May 31 '15 at 12:44

Viewed 31 times

I've written the following and expected a to be initilized with 4 rvalue. But it didn't:

struct A
{
    const int a;

    A() //ctor-initializer is not specified, therefore no initialization for a is performed
    {
        a = 4; //initialization
    }
};

A a;

What's wrong? Why does compiler complain?

asked May 31 '15 at 12:44

user3663882

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Assignment is assignment, even when done in a constructor. – Some programmer dude May 31 '15 at 12:47
@JoachimPileborg So I'm not clear about the initialization concept. I though it was specifing a value for an entity for the first time. – user3663882 May 31 '15 at 12:50
1

Initialization is only done at time of definition, either as a direct initialization (e.g. `const int a = 4;`) or through the constructors *initialization* list. The comment is spot-on, "no initialization for a is performed". – Some programmer dude May 31 '15 at 12:52
@JoachimPileborg got that, thank you. – user3663882 May 31 '15 at 12:52

Assignment is treated as initialization

0 Answers0