typeToVector< T, N > Struct Template Reference

Utility template struct for generating small vector types from scalar types. More...

#include <cudpp_util.h>

Detailed Description

template<typename T, int N>
struct typeToVector< T, N >

Utility template struct for generating small vector types from scalar types.

Given a base scalar type (int, float, etc.) and a vector length (1 through 4) as template parameters, this struct defines a vector type (float3, int4, etc.) of the specified length and base type. For example:

template <class T>
__device__ void myKernel(T *data)
{
    typeToVector<T,4>::Result myVec4;             // create a vec4 of type T
    myVec4 = (typeToVector<T,4>::Result*)data[0]; // load first element of data as a vec4
}

This functionality is implemented using template specialization. Currently specializations for int, float, and unsigned int vectors of lengths 2-4 are defined. Note that this results in types being generated at compile time – there is no runtime cost. typeToVector is used by the optimized scan device functions in scan_cta.cu.

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The documentation for this struct was generated from the following file:

• /home/jwmak/Projects/cudpp/src/cudpp/cudpp_util.h