playrho::detail::NonNegativeChecker< T > Struct Template Reference

Non-negative constrained value checker. More...

#include <playrho/detail/NonNegativeChecker.hpp>

Public Member Functions
constexpr auto	operator() () const noexcept -> decltype(T{})
	Default value supplying functor. More...
constexpr auto	operator() (const T &v) const noexcept -> decltype(v >=T{}, static_cast< const char * >(nullptr))
	Value checking functor. More...

Detailed Description

template<typename T>
struct playrho::detail::NonNegativeChecker< T >

Non-negative constrained value checker.

Note

This is meant to be used as a checker with types like Checked.

Template Parameters

T	Underlying type for this checker.

See also

Checked.

Member Function Documentation

operator()() [1/2]

template<typename T >

constexpr auto playrho::detail::NonNegativeChecker< T >::operator() ( ) const -> decltype(T{})

inlineconstexprnoexcept

Default value supplying functor.

Returns

Always returns the zero initialized value of the underlying type.

operator()() [2/2]

template<typename T >

constexpr auto playrho::detail::NonNegativeChecker< T >::operator() ( const T &  v ) const -> decltype(v >= T{}, static_cast<const char*>(nullptr))

inlineconstexprnoexcept

Value checking functor.

Returns

Null string if given value is greater than or equal to zero, else a non-null string explanation.

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

• Library/include/playrho/detail/NonNegativeChecker.hpp