Template Function thrust::tabulate(ForwardIterator, ForwardIterator, UnaryOperation)

Function Documentation

template<typename ForwardIterator, typename UnaryOperation>
void thrust::tabulate(ForwardIterator first, ForwardIterator last, UnaryOperation unary_op)

tabulate fills the range [first, last) with the value of a function applied to each element’s index.

For each iterator i in the range [first, last), tabulate performs the assignment *i = unary_op(i - first).

The following code snippet demonstrates how to use

tabulate to generate the first n non-positive integers:
Parameters

  • first: The beginning of the range.

  • last: The end of the range.

  • unary_op: The unary operation to apply.

Template Parameters

  • ForwardIterator: is a model of Forward Iterator, and ForwardIterator is mutable, and if x and y are objects of ForwardIterator's value_type, then x + y is defined, and if T is ForwardIterator's value_type, then T(0) is defined.

  • UnaryOperation: is a model of Unary Function and UnaryFunction's result_type is convertible to OutputIterator's value_type.

#include <thrust/tabulate.h>
#include <thrust/functional.h>
...
const int N = 10;
int A[N];
thrust::tabulate(A, A + 10, thrust::negate<int>());
// A is now {0, -1, -2, -3, -4, -5, -6, -7, -8, -9}

See

thrust::fill

See

thrust::generate

See

thrust::sequence