[moomba]

What is the 'mutable' keyword do

Do people actually ask this. I can't understand if it should be, "What the the mutable keyboard 'do'". I'm not sure of any mutable keywords by the name of "do". Or did you mean "What does the 'mutable' keyword do". Again, I'm not familiar with any popular programming languages with the keyword mutable. If they are just asking for the definition of mutability, that seems a strange question for a technical interview.

From my experience most of these interviews at these big tech companies have these kind of questions. And they suffer from having inexperienced engineers conducting the interviews. I think this is a big, untalked about problem with regard to why tech companies have such a lack of talent.

[Someone]

For the curious: mutable is a keyword in C++

See for example http://stackoverflow.com/questions/105014/c-mutable-keyword

[Jun8]

Sorry for the typo, it should have said "What does the 'mutable' keyword do?"

It is interesting, sometimes when you consider two different syntactic forms of a sentence, the written form has vestiges from both.