Comments on: C++ Tech Interviews http://mpwilson.com/2012/01/10/c-tech-interviews/ Wed, 23 May 2012 00:13:04 +0000 http://wordpress.org/?v=2.5.1 By: Brett L. Schuchert http://mpwilson.com/2012/01/10/c-tech-interviews/#comment-5266 Brett L. Schuchert Wed, 11 Jan 2012 15:19:22 +0000 http://mpwilson.com/?p=4120#comment-5266 Forget the hard stuff... Give them an opportunity to show whether or not they know how to properly use inheritance and virtual functions. Give them a design problem (I've used Monopoly) and see where they put the responsibility. As for tricky questions... Here's one you could use but it requires knowledge of the standard library and references... Given a std::map stringToString; If you want to find out if a key is already used, you could do this: if(stringToString[key] ...) - Why should you not generally do this to find if something is in them map - What should you do instead - What feature of C++ almost requires this observation? Forget the hard stuff… Give them an opportunity to show whether or not they know how to properly use inheritance and virtual functions. Give them a design problem (I’ve used Monopoly) and see where they put the responsibility.

As for tricky questions… Here’s one you could use but it requires knowledge of the standard library and references…

Given a std::map stringToString;

If you want to find out if a key is already used, you could do this:
if(stringToString[key] …)
- Why should you not generally do this to find if something is in them map
- What should you do instead
- What feature of C++ almost requires this observation?

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