Logical AND (&&) returns a true value if both relational expressions are true. : Logic Operators « Operator « C Tutorial

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C Tutorial » Operator » Logic Operators 
5.5.3.Logical AND (&&) returns a true value if both relational expressions are true.

Logical OR (||) returns true if any of the expressions are true.

Negations(!) return complements of values of relational expressions.

R1R2R1 && R2R1 || R2! R1
TTTTF
TFFTF
FTFTT
FFFFT


  1. Logical operators AND, and OR have higher priority than assignment operators.
  2. Logical operators AND, and OR have lower priority than relational operators.
  3. Negation operators have the same priority as unary operators.
5.5.Logic Operators
5.5.1.Boolean Operator in C
5.5.2.Logical operator
5.5.3.Logical AND (&&) returns a true value if both relational expressions are true.
5.5.4.Short circuiting
5.5.5.Ternary operator
5.5.6.Testing letters with logic operator and (&&)
5.5.7.The || is the logical OR operator.
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