## Description

The logical operators and (**&&**) and or (**||**) operate on all scalar and
vector built-in types.
For scalar built-in types only, and (**&&**) will only evaluate the right hand
operand if the left hand operand compares unequal to 0.
For scalar built-in types only, or (**||**) will only evaluate the right hand
operand if the left hand operand compares equal to 0.
For built-in vector types, both operands are evaluated and the operators are
applied component-wise.
If one operand is a scalar and the other is a vector, the scalar may be
subject to the usual arithmetic conversion to the element type used by the
vector operand.
The scalar type is then widened to a vector that has the same number of
components as the vector operand.
The operation is done component-wise resulting in the same size vector.

The logical operator exclusive or (**^^**) is reserved.

The result is a scalar signed integer of type `int`

if the source operands
are scalar and a vector signed integer type of the same size as the source
operands if the source operands are vector types.
Vector source operands of type `char`

and *n*`uchar`

return a
*n*`char`

result; vector source operands of type *n*`short`

and
*n*`ushort`

return a *n*`short`

result; vector source operands of type
*n*`int`

, *n*`uint`

and *n*`float`

return an *n*`int`

result; vector
source operands of type *n*`long`

, *n*`ulong`

and *n*`double`

return a
*n*`long`

result.*n*

For scalar types, the logical operators shall return 0 if the result of the
operation is *false* and 1 if the result is *true*.
For vector types, the logical operators shall return 0 if the result of the
operation is *false* and -1 (i.e. all bits set) if the result is *true*.

## See Also

## Document Notes

For more information, see the OpenCL C Specification

This page is extracted from the OpenCL C Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.