logical-xor#

Purpose#

Performs logical exclusive OR (XOR) operation.

Format#

y = a xor b

Parameters#

param a:

Left operand.

type a:

scalar

param b:

Right operand.

type b:

scalar

Returns#

return y:

1 if exactly one of a or b is non-zero, 0 otherwise.

rtype y:

scalar

Examples#

Basic Usage#

y = 0 xor 0;

y =    0.0000000

y = 1 xor 0;

y =    1.0000000

y = 1 xor 1;

y =    0.0000000

Toggle Behavior#

// XOR can be used to toggle a flag
flag = 1;
toggle = 1;
flag = flag xor toggle;    // flag becomes 0
flag = flag xor toggle;    // flag becomes 1

Remarks#

  • Operands must be scalars.

  • Returns 1 only when the operands have different logical values.

  • Any non-zero value is considered true; zero is false.

  • a xor b is equivalent to (a and not b) or (not a and b).

See also

Operators logical-and, logical-or, logical-eqv

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