cusp::norm_functor< T > Struct Template Reference

Detailed description

template<typename T>
struct cusp::norm_functor< T >

norm_functor is a function object that computes the norm of a given element.

Parameters

T	is a model of Assignable, and if x is an object of type T, then x=c must be defined and must have a return type that is convertible to T.

Overview

norm_functor is a function object. Specifically, it is an Adaptable Unary Function. If f(c) is an object of class norm_functor<T>, and x is an object of class T, then f(x) returns norm(x).

Example

#include <cusp/array1d.h>
#include <cusp/functional.h>
#include <cusp/print.h>

int main()
{
   // create an array with 5 entries from (0,-2) to (4,-2)
   cusp::counting_array< cusp::complex<float> > count(5, cusp::complex<float>(0,-2));

   // allocate size of transformed output array
   cusp::array1d<cusp::complex<float>,cusp::host_memory> v(5, 0);

   // compute output vector as transform of tens
   thrust::transform(count.begin(), count.end(), v.begin(), cusp::norm_functor< cusp::complex<float> >());

   // v = [4, 5, 8, 13, 20]
   cusp::print(v);
}

Definition at line 740 of file functional.h.

#include <functional.h>

Inheritance diagram for cusp::norm_functor< T >:

Public Methods
__host__ __device__ cusp::norm_type< T >::type	operator() (const T &t) const