Not initialized out argument error

[bearophile via Digitalmars-d]

Jonathan M Davis:

> Regardless, I fully support how out works.

Why? Do you often need to return .init from out arguments? Do you 
think that adding logic to make sure you have initialized the 
argument inside the function (as in Ada and C#) isn't going to 
improve the safety of your D code? Do you think that both Ada and 
C# designers have done a design mistake? What's good in an 
argument annotation that is used to return a value and that 
accepts you to not set such value, to return a default one?


> I just think that we should try and optimize out its costs

This whole discussion was not about optimizations. It was about 
safety and logic neatness of a language feature.

Bye,
bearophile