thrust::find

Defined in thrust/find.h

template<typename DerivedPolicy, typename InputIterator, typename T> InputIterator thrust::find(const thrust::detail::execution_policy_base<DerivedPolicy> &exec, InputIterator first, InputIterator last, const T &value)

find returns the first iterator i in the range [first, last) such that *i == value or last if no such iterator exists.

The algorithm’s execution is parallelized as determined by exec.

#include <thrust/find.h>
#include <thrust/device_vector.h>
#include <thrust/execution_policy.h>
...
thrust::device_vector<int> input(4);

input[0] = 0;
input[1] = 5;
input[2] = 3;
input[3] = 7;

thrust::device_vector<int>::iterator iter;

iter = thrust::find(thrust::device, input.begin(), input.end(), 3); // returns input.first() + 2
iter = thrust::find(thrust::device, input.begin(), input.end(), 5); // returns input.first() + 1
iter = thrust::find(thrust::device, input.begin(), input.end(), 9); // returns input.end()