arg_router::policy::default_value< T > Class Template Reference

#include <arg_router/policy/default_value.hpp>

Public Types
using	value_type = T

Public Member Functions
constexpr	default_value (value_type value) noexcept
template<typename ValueType , typename... Parents>
constexpr ValueType	missing_phase ([[maybe_unused]] const Parents &... parents) const noexcept

Static Public Attributes
constexpr static auto	priority = std::size_t{500}

Detailed Description

template<typename T>
class arg_router::policy::default_value< T >

Provides a default value for non-required arguments.

Template Parameters

T	Value type

Definition at line 17 of file default_value.hpp.

Member Typedef Documentation

value_type

template<typename T >

using arg_router::policy::default_value< T >::value_type = T

Alias of T.

Definition at line 21 of file default_value.hpp.

Constructor & Destructor Documentation

default_value()

template<typename T >

constexpr arg_router::policy::default_value< T >::default_value ( value_type  value )

inlineexplicitconstexprnoexcept

Constructor

Parameters

value

Default value

Definition at line 30 of file default_value.hpp.

Member Function Documentation

missing_phase()

template<typename T >

template<typename ValueType , typename... Parents>

constexpr ValueType arg_router::policy::default_value< T >::missing_phase ( [[maybe_unused] ] const Parents &...  parents ) const

inlineconstexprnoexcept

Called when the owning node's token (if any) is missing from the command line, this will return the default value.

Template Parameters

ValueType	Parsed value type, must be implicitly constructible from value_type
Parents	Pack of parent tree nodes in ascending ancestry order

Parameters

parents

Parents instances pack

Returns

Default value

Definition at line 41 of file default_value.hpp.

Member Data Documentation

priority

template<typename T >

constexpr static auto arg_router::policy::default_value< T >::priority = std::size_t{500}

staticconstexpr

Policy priority.

Definition at line 24 of file default_value.hpp.

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

• arg_router/policy/default_value.hpp