Friday, April 3, 2009

importance of arrays in c++

Q: arrays are fixed blocks of memory (can't grow beyond their initial allocated "lands" into neighbors). why are they so popular and relevant in c++?
A: The Defensive Coding chapter in Microsoft author's [[Solid Code]] advocates arrays (over vectors) on the ground of simplicity.

A: a lot of c++ apps are owned by C developer teams. A lot of arrays in use. Consistency is esp. important when you are not in green field.

A: most enterprise C apps, in any language, use lots of strings. The most common string in c/c++ is still a char array.
A: c++ is low level. Arrays are a fundamental low-level structure. For any collection, perhaps the only alternative is linked data structure.

A: as stated in the blog [[4 implementations]], array is the #1 most fundamental implementation of all collections and containers. Salt and vinegar don't taste good, but you can't cook without them.

A: pointers are fundamental to and powerful in every language. array is the most natural user of pointers. Much of c++ "most powerful language" reputation rests on pointer/array integration.

A: array is to vector what wait/notify is to jdk5 concurrency constructs

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