Deduction guides¶
Where possible, constructors of concurrent_vector support
class template argument deduction (since C++17):
template <typename InputIterator,
typename Allocator = cache_aligned_allocator<iterator_value_t<InputIterator>>>
concurrent_vector( InputIterator, InputIterator,
const Allocator& = Allocator() )
-> concurrent_vector<iterator_value_t<InputIterator>,
Allocator>;
Where type alias iterator_value_t defines as follows:
template <typename InputIterator>
using iterator_value_t = typename std::iterator_traits<InputIterator>::value_type;
Example
#include <tbb/concurrent_vector.h>
#include <array>
#include <memory>
int main() {
std::array<int, 100> arr;
// Deduces cv1 as tbb::concurrent_vector<int>
tbb::concurrent_vector cv1(arr.begin(), arr.end());
std::allocator<int> alloc;
// Deduces cv2 as tbb::concurrent_vector<int, std::allocator<int>>
tbb::concurrent_vector cv2(arr.begin(), arr.end(), alloc);
}