thrust::sequence
Defined in thrust/sequence.h
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template<typename DerivedPolicy, typename ForwardIterator>
void thrust::sequence(const thrust::detail::execution_policy_base<DerivedPolicy> &exec, ForwardIterator first, ForwardIterator last) sequencefills the range[first, last)with a sequence of numbers.For each iterator
iin the range[first, last), this version ofsequenceperforms the assignment*i = (i - first).The algorithm’s execution is parallelized as determined by
exec.The following code snippet demonstrates how to use
sequenceto fill a range with a sequence of numbers using thethrust::hostexecution policy for parallelization:#include <thrust/sequence.h> #include <thrust/execution_policy.h> ... const int N = 10; int A[N]; thrust::sequence(thrust::host, A, A + 10); // A is now {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
Note
Unlike the similar C++ STL function
std::iota,sequenceoffers no guarantee on order of execution.- Parameters
exec – The execution policy to use for parallelization.
first – The beginning of the sequence.
last – The end of the sequence.
- Template Parameters
DerivedPolicy – The name of the derived execution policy.
ForwardIterator – is a model of Forward Iterator, and
ForwardIteratoris mutable, and ifxandyare objects ofForwardIterator'svalue_type, thenx + yis defined, and ifTisForwardIterator'svalue_type, thenT(0)is defined.