otb::mpl::internals Namespace Reference

Classes
struct	NumberOfComponents
struct	NumberOfComponents< itk::VariableLengthVector< RealType > >
struct	NumberOfComponents< std::complex< T > >
struct	NumberOfComponents< T const >

Functions
template<typename... T>
constexpr std::false_type	is_array_f (...)
template<typename T , unsigned int N>
constexpr std::true_type	is_array_f (itk::FixedArray< T, N > const *)

Function Documentation

is_array_f() [1/2]

template<typename... T>

constexpr std::false_type otb::mpl::internals::is_array_f (   ... )

constexpr

SFINAE part that says: "ignore anything else".

is_array_f() [2/2]

template<typename T , unsigned int N>

constexpr std::true_type otb::mpl::internals::is_array_f ( itk::FixedArray< T, N > const *  )

constexpr

SFINAE workaround to match types that inherit from itk::FixedArray. As we cannot use std::is_base_of<RGBAPixel<T>, itk::FixedArray<T, N> when trying to see if RGBAPixel inherits from itk::FixedArray without knowing the N parameter beforehand, here is this workaround.

We take the parameter by pointer to avoid possible conversions.