thrust::square< T > Struct Template Reference

#include <thrust/functional.h>

Public Types
typedef T	argument_type
	The type of the function object's argument.
typedef T	result_type
	The type of the function object's result;.

Public Member Functions
__thrust_exec_check_disable__ __host__ __device__ constexpr T	operator() (const T &x) const

Detailed Description

template<typename T = void>
struct thrust::square< T >

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

Template Parameters

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

The following code snippet demonstrates how to use square to square the elements of a device_vector of floats.

#include <thrust/device_vector.h>
#include <thrust/functional.h>
#include <thrust/sequence.h>
#include <thrust/transform.h>
...
const int N = 1000;
thrust::device_vector<float> V1(N);
thrust::device_vector<float> V2(N);

thrust::sequence(V1.begin(), V1.end(), 1);

thrust::transform(V1.begin(), V1.end(), V2.begin(),
                  thrust::square<float>());
// V2 is now {1, 4, 9, ..., 1000000}

See also

unary_function

---

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

• thrust/functional.h