Description

Performs an exclusive scan of the elements in the range [first, last) and stores the results in the range beginning at result.

Each element in the output is assigned to the sum of all the previous values in the input.

// setup input
int data[] = { 1, 2, 3, 4 };
boost::compute::vector<int> input(data, data + 4, queue);

// setup output
boost::compute::vector<int> output(4, context);

// scan values
boost::compute::exclusive_scan(
    input.begin(), input.end(), output.begin(), queue
);

// output = [ 0, 1, 3, 6 ]

See Also:

inclusive_scan()