C++ Coding Standards: 101 Rules, Guidelines, and Best Practices

18. SummaryDiscussionExceptionsReferences...

Avoid scope bloat, as with requirements so too with variables): Variables introduce state, and you should have to deal with as little state as possible,...

Variables whose lifetimes are longer than necessary have several drawbacks: They make the program harder to understand and maintain: For example, should code update the module-wide...

It can sometimes be beneficial to hoist a variable out of a loop. (See Item 9.) Because constants don't add state, this Item does not apply...

[Dewhurst03] §3, §48, §66 • [Dewhurst03] §95 [McConnell93] §5.1-4, §• [Stroustrup00] §4.9.4, §6.3...