keyword()

template<template< class > class Checker, typename ID >

constexpr checked_keyword< ID, Checker > keyword ( ID  id )

related

Create a checked keyword for reuse.

Template Parameters

Checker

Unary template meta-function to use for validation

Parameters

id	Unique rbr::id_ for the keyword being built

Returns

An instance of rbr::checked_keyword

Example:

 
#include <raberu/raberu.hpp>
#include <iostream>
 
using namespace rbr::literals;
 
template<typename T>
struct is_big : std::bool_constant<(sizeof(T) > 2)> {};
 
inline constexpr auto large_value = rbr::keyword<is_big>("large"_id);
 
int main()
{
  std::cout << rbr::settings( large_value = 9.6 );
}