15.5.7 andif

x andif y

A binary conditional: a logical binary “and” operator with possible evaluation suppression. x andif y is allowed for scalar x and y only, and then yields the same result as x ne 0 and y ne 0, except that if x equals zero, then y is not evaluated.

See also: and, ne, or, orif, xor, Binary Conditionals, Binary Operators