--- layout: stdlib-reference --- # WaveActiveBitOr ## Description ## Signature
T WaveActiveBitOr<T>(T expr)
where T : __BuiltinLogicalType;
vector<T, N> WaveActiveBitOr<T, int N>(vector<T, N> expr)
where T : __BuiltinLogicalType;
matrix<T, N, M> WaveActiveBitOr<T, int N, int M>(matrix<T, N, M> expr)
where T : __BuiltinLogicalType;
## Generic Parameters
#### T: [\_\_BuiltinLogicalType](../interfaces/0_builtinlogicaltype-029g/index.html)
#### N : int
#### M : int
## Parameters
#### expr : [T](waveactivebitor-04ad.html#typeparam-T)
#### expr : [vector](../types/vector/index.html)\<[T](../types/vector/index.html#typeparam-T), [N](../types/vector/index.html#decl-N)\>
#### expr : [matrix](../types/matrix/index.html)\<[T](../types/matrix/t-0.html), [N](../types/matrix/index.html#decl-N), [M](../types/matrix/index.html#decl-M)\>
## Availability and Requirements
Defined for the following targets:
#### hlsl
Available in all stages.
#### glsl
Available in all stages.
#### cuda
Available in all stages.
#### metal
Available in all stages.
#### wgsl
Available in all stages.
#### spirv
Available in all stages.
Requires capability: `spvGroupNonUniformArithmetic`.