Acts::detail::can_interpolate< Point1, Point2, Point3, Value > Struct Template Reference

check types for requirements needed by interpolation More...

#include <acts/blob/sPHENIX/Core/include/Acts/Utilities/detail/interpolation_impl.hpp>

Static Public Member Functions
template<typename C >
static auto	value_type_test (C *c) -> decltype(C(std::declval< double >()*std::declval< C >()+std::declval< double >()*std::declval< C >()), std::true_type())
template<typename C >
static std::false_type	value_type_test (...)
template<typename C >
static auto	point_type_test (C *c) -> decltype(double(std::declval< C >()[0]), std::true_type())
template<typename C >
static std::false_type	point_type_test (...)

Static Public Attributes
static const bool	value

Detailed Description

template<typename Point1, typename Point2, typename Point3, typename Value>
struct Acts::detail::can_interpolate< Point1, Point2, Point3, Value >

check types for requirements needed by interpolation

Template Parameters

Point1	type for specifying geometric positions
Point2	type for specifying geometric positions
Point3	type for specifying geometric positions
Value	type of values to be interpolated

This helper struct provides compile-time information whether the provided Point and Value types can be used in the Acts::interpolate function.

The following boolean variable

Acts::detail::can_interpolate<Point1,Point2,Point3,Value>::value

is true if all Point types and Value fulfill the type requirements for being used in the interpolation function, otherwise it is false. This expression can be employed in std::enable_if_t to use SFINAE patterns to enable/disable (member) functions.

Definition at line 37 of file interpolation_impl.hpp.

View newest version in sPHENIX GitHub at line 37 of file interpolation_impl.hpp

Member Function Documentation

template<typename Point1 , typename Point2 , typename Point3 , typename Value >

template<typename C >

static auto Acts::detail::can_interpolate< Point1, Point2, Point3, Value >::point_type_test ( C *  c ) -> decltype(double(std::declval< C >()[0]), std::true_type())

static

template<typename Point1 , typename Point2 , typename Point3 , typename Value >

template<typename C >

static std::false_type Acts::detail::can_interpolate< Point1, Point2, Point3, Value >::point_type_test (   ... )

static

template<typename Point1 , typename Point2 , typename Point3 , typename Value >

template<typename C >

static auto Acts::detail::can_interpolate< Point1, Point2, Point3, Value >::value_type_test ( C *  c ) -> decltype(C(std::declval< double >()*std::declval< C >()+std::declval< double >()*std::declval< C >()), std::true_type())

static

template<typename Point1 , typename Point2 , typename Point3 , typename Value >

template<typename C >

static std::false_type Acts::detail::can_interpolate< Point1, Point2, Point3, Value >::value_type_test (   ... )

static

Member Data Documentation

template<typename Point1 , typename Point2 , typename Point3 , typename Value >

const bool Acts::detail::can_interpolate< Point1, Point2, Point3, Value >::value

static

Initial value:

=
      std::is_same<std::true_type,
                   decltype(value_type_test<Value>(nullptr))>::value and
      std::is_same<std::true_type,
                   decltype(point_type_test<Point1>(nullptr))>::value and
      std::is_same<std::true_type,
                   decltype(point_type_test<Point2>(nullptr))>::value and
      std::is_same<std::true_type,
                   decltype(point_type_test<Point3>(nullptr))>::value

Definition at line 52 of file interpolation_impl.hpp.

View newest version in sPHENIX GitHub at line 52 of file interpolation_impl.hpp

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The documentation for this struct was generated from the following file:

• acts/blob/sPHENIX/Core/include/Acts/Utilities/detail/interpolation_impl.hpp