--- layout: stdlib-reference --- # step ## Description Step function. ## Signature

/// Requires Capability Set 1:
T step<T>(
    T y,
    T x)
    where T : __BuiltinFloatingPointType;

/// Requires Capability Set 1:
vector<T, N> step<T, int N>(
    vector<T, N> y,
    vector<T, N> x)
    where T : __BuiltinFloatingPointType;

/// Requires Capability Set 1:
matrix<T, N, M> step<T, int N, int M>(
    matrix<T, N, M> y,
    matrix<T, N, M> x)
    where T : __BuiltinFloatingPointType;

/// Requires Capability Set 2:
CoopVec<T, N> step<T, int N>(
    CoopVec<T, N> edge,
    CoopVec<T, N> x)
    where T : __BuiltinFloatingPointType;

## Generic Parameters #### T: [\_\_BuiltinFloatingPointType](../interfaces/0_builtinfloatingpointtype-029hm/index.html) #### N : int #### M : int ## Parameters #### y : [T](step.html#typeparam-T) The threshold value. #### x : [T](step.html#typeparam-T) The value to compare against the threshold. #### y : [vector](../types/vector/index.html)\<[T](../types/vector/index.html#typeparam-T), [N](../types/vector/index.html#decl-N)\> The threshold value. #### x : [vector](../types/vector/index.html)\<[T](../types/vector/index.html#typeparam-T), [N](../types/vector/index.html#decl-N)\> The value to compare against the threshold. #### y : [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)\> The threshold value. #### x : [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)\> The value to compare against the threshold. #### edge : [CoopVec](../types/coopvec-04/index.html)\<[T](../types/coopvec-04/index.html#typeparam-T), [N](../types/coopvec-04/index.html#decl-N)\> #### x : [CoopVec](../types/coopvec-04/index.html)\<[T](../types/coopvec-04/index.html#typeparam-T), [N](../types/coopvec-04/index.html#decl-N)\> The value to compare against the threshold. ## Return value 0 if x is less than y, and 1 otherwise. ## Availability and Requirements ### Capability Set 1 Defined for the following targets: #### hlsl Available in all stages. #### glsl Available in all stages. #### cpp Available in all stages. #### cuda Available in all stages. #### metal Available in all stages. #### wgsl Available in all stages. #### spirv Available in all stages. ### Capability Set 2 Defined for the following targets: #### hlsl Available in all stages. Requires capability: `hlsl_coopvec_poc`. #### cpp Available in all stages. #### cuda Available in all stages. Requires capability: `optix_coopvec`. #### spirv Available in all stages. Requires capability: `spvCooperativeVectorNV`.