C TutorialLesson 11Free preview

C Operators

This lesson is part of C · All levels

Summary

An operator is a symbol that commands a computer to perform a certain operation on a value, ranging from arithmetic (+, -, *, /, %), comparison (==,!=, >, <), to logic (&&, ֹּ,!). C also has assignment operators like = and value adders like +=, as well as increment operators like ++ and decrement -- Priorities determine the evaluation sequence, and parentheses can be used to force the order we want. Understanding the operator correctly makes program expressions accurate.

Key points

Arithmetic operators: + - * / and % (modulus/residual to)
The comparison operator yields a value of 1 (true) or 0 (false) in C
Logic operators && (and), ∫ (or), !not) combine the conditions
The operator +=, -=, *= is an abbreviation of assignment and operation

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