concepts::is_vector_space_vector Concept Reference

#include <deal.II/base/template_constraints.h>

Concept definition

template<typename VectorType>
concept concepts::is_vector_space_vector =  requires(VectorType                      U,
                                            VectorType                      V,
                                            VectorType                      W,
                                            typename VectorType::value_type a,
                                            typename VectorType::value_type b,
                                            typename VectorType::value_type s) {
    
    typename VectorType::value_type;
    typename VectorType::size_type;
    typename VectorType::real_type;
 
    
    U.reinit(V);
    U.reinit(V,  true);
 
    U = V;
    U = a; 
 
    U.equ(a, V);
 
    
    U *= a;
    U /= a;
 
    U.scale(V);
 
    
    U += V;
    U -= V;
 
    U.add(a);
    U.add(a, V);
    U.add(a, V, b, W);
 
    U.sadd(s, a, V);
 
    
    {
      U.mean_value()
    } -> std::convertible_to<typename VectorType::value_type>;
 
    {
      U.l1_norm()
    } -> std::convertible_to<typename VectorType::real_type>;
 
    {
      U.l2_norm()
    } -> std::convertible_to<typename VectorType::real_type>;
 
    {
      U.linfty_norm()
    } -> std::convertible_to<typename VectorType::real_type>;
 
    
    {
      U *V
    } -> std::convertible_to<typename VectorType::value_type>;
 
    {
      U.add_and_dot(a, V, W)
    } -> std::convertible_to<typename VectorType::value_type>;
 
    
    {
      U.size()
    } -> std::convertible_to<typename VectorType::size_type>;
 
    {
      U.all_zero()
    } -> std::same_as<bool>;
 
    {
      U.get_mpi_communicator()
    } -> std::same_as<MPI_Comm>;
  }

Detailed Description

A concept that tests whether a class VectorType has the required interface to serve as a vector in vector-space operations – principally what is required to run iterative solvers: things such as norms, dot products, etc.

Definition at line 985 of file template_constraints.h.