cusp::norm_functor< T > Struct Template Reference

#include <functional.h>

Public Methods
_CCCL_HOST_DEVICE cusp::norm_type< T >::type	operator() (const T &t) const
	Return the norm of t.

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 756 of file functional.h.

Member Function Documentation

operator()()

template<typename T >

_CCCL_HOST_DEVICE cusp::norm_type< T >::type cusp::norm_functor< T >::operator() ( const T &  t ) const

inline

Return the norm of t.

Definition at line 761 of file functional.h.