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#include <cusp/array1d.h>
#include <cusp/blas.h>
#include <cusp/copy.h>
#include <cusp/print.h>
// This example shows how to create views to an array container.
// Views act like containers but do not own the underlying data.
// Like pointers, views are *lightweight* objects that *reference* data.
int main(void)
{
// define array container type
typedef cusp::array1d<int, cusp::device_memory> Array;
// define array view type
typedef Array::view View;
// allocate array1d container with 10 elements
Array array(10,0);
// create view to the first 5 elements of the array
View first_half(array.begin(), array.begin() + 5);
// create view to the last 5 elements of the array
View last_half(array.begin() + 5, array.end());
// fill the first half of the array with 1s
cusp::blas::fill(first_half, 1);
// fill the first half of the array with 2s
cusp::blas::fill(last_half, 2);
// print the array
cusp::print(array);
// copy the first half to the last half
cusp::copy(first_half, last_half);
// print the array
cusp::print(array);
return 0;
}
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