thrust::all_of

Defined in thrust/logical.h

template<typename DerivedPolicy, typename InputIterator, typename Predicate> bool thrust::all_of(const thrust::detail::execution_policy_base<DerivedPolicy> &exec, InputIterator first, InputIterator last, Predicate pred)

all_of determines whether all elements in a range satisfy a predicate. Specifically, all_of returns true if pred(*i) is true for every iterator i in the range [first, last) and false otherwise.

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

#include <thrust/logical.h>
#include <thrust/functional.h>
#include <thrust/execution_policy.h>
...
bool A[3] = {true, true, false};

thrust::all_of(thrust::host, A, A + 2, ::cuda::std::identity{}); // returns true
thrust::all_of(thrust::host, A, A + 3, ::cuda::std::identity{}); // returns false

// empty range
thrust::all_of(thrust::host, A, A, ::cuda::std::identity{}); // returns true