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KwickClips C · 43 sec · free

Are a++ and ++a the same?

Short answer. No. Postfix uses then adds; prefix adds then uses.

What is c after c = ++a when a is 6?

7.

Remember

a++: use, then add
++a: add, then use

A plus plus, or plus plus a. Are they the same? No. Postfix uses five, then a becomes six. Prefix adds first, making seven. So b is five, c is seven. Postfix uses, then adds. Prefix adds, then uses.

This clip is from the full lesson: Operators and Expressions in C — 8 minutes, with the tables, the quick answers and the whole lesson in text.

Useful for: GSEB Std 10 Computer Studies, Programming All levels C, Programming All levels C, Programming All levels C

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