C Ostream Dev Null

Unix dev null

C Ostream Dev Null Function

In aceasta situatie, operatorul este binar: primul operand este un dispozitiv de iesire (de tip ostream) iar al doilea este unul de tip stiva. In acest caz, o expresie de genul: cout s este interpretata ca: operator (cout, s); adica un apel al functiei operator, cu parametrii cout si s. It will always print the message, because function parameters are evaluated before the body of the function is entered. You can get the effect I think you want with a macro, as macro parameters are only evaluated when they are used.



Dev

C Ostream Dev Null Code

Standard no-op output stream (4)

Is there a way to create an ostream instance which basically doesn't do anything ?

For example :

Dev Null 2-1

I could just create an ostringstream, but data will be buffered (and I really don't want to make anything with them, so it adds a useless overhead).

Any idea ?

C Ostream Dev Null Test

[edit] Found this related question which suits my needs. However, I think it could be useful to have a answer saying how to create a valid (no badbit) output stream with standard c++.

I needed a null stream that was of type ostream so I did something like this:

Application code:

C Ostream Dev Null

The real issue is all the public methods that I inherited but don't care about so I just didn't bother overriding them.