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std::valarray::cshift(3) C++ Standard Libary std::valarray::cshift(3) NAME std::valarray::cshift - std::valarray::cshift Synopsis valarray<T> cshift( int count ) const; Returns a new valarray of the same size with elements whose posi- tions are shifted circularly by count elements. The new position of each element is (icount) mod s where i is the previous position and s is size(). Parameters count - number of positions to shift the elements by Return value The resulting valarray with circularly shifted elements. Notes The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties: * All const member functions of std::valarray are pro- vided. * std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the re- placement type. * All functions accepting an argument of type const std::valarray& except begin() and end() (since C++11) should also accept the replacement type. * All functions accepting two arguments of type const std::valarray& should accept every combination of const std::valarray& and the replacement type. * The return type does not add more than two levels of template nesting over the most deeply-nested argument type. Example // Run this code #include <iostream> #include <valarray> int main() { std::valarray<int> v{1, 2, 3, 4, 5, 6, 7, 8}; for (auto const& val : v) { std::cout << val << " "; } std::cout << "\n"; std::valarray<int> v2 = v.cshift(2); for (auto const& val : v2) { std::cout << val << " "; } std::cout << "\n"; } Output: 1 2 3 4 5 6 7 8 3 4 5 6 7 8 1 2 See also shift zero-filling shift the elements of the valarray (public member function) http://cppreference.com 2022.07.31 std::valarray::cshift(3)
NAME | Synopsis | Parameters | Return value | Notes | Example | Output: | See also
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