eve::algo::traits< Settings > Struct Template Reference

Detailed Description

template<typename Settings>
struct eve::algo::traits< Settings >

Compile time set of tuning parameters an algorithm accepts.

Header file #include <eve/module/algo.hpp>

namespace eve::algo
{
  template<typename Settings>
  struct traits : Settings
  {
    template<rbr::concepts::option... Options>
    constexpr explicit traits(Options&&... options);
 
    template<typename... Options>
    constexpr traits(rbr::settings<Options...> const& options);
  };
}

Template Parameters

Settings

Deduced keyword settings, never spelled by hand.

Every algorithm carries a default set and accepts traits between brackets. Naming them one at a time builds the set as the call is written:

find_if[expensive_callable][consider_types<double>](r, p);

A set gathers several traits in a single pair of brackets, which several calls can share:

constexpr auto tr = traits{expensive_callable, consider_types<double>};
find_if[tr](r, p);
find_if[tr](q, p);

Traits a call passes override the algorithm's defaults. Those it leaves out keep their default value.

See also

Algorithm Traits to read a set from inside an algorithm.

Public Member Functions
template<rbr::concepts::option... Options>
constexpr	traits (Options &&... options)
	Builds a set from the traits named one by one.
template<typename... Options>
constexpr	traits (rbr::settings< Options... > const &options)
	Builds a set from an existing keyword settings object.