Concept for types that can be parsed from a std::istream via the stream operator. More...

#include <sharg/concept.hpp>

Concept definition

template<typename value_type>
concept sharg::istreamable =  requires (std::istream & is, value_type & val)
{
    {is >> val} -> std::same_as<std::istream&>;
}

Detailed Description

Concept for types that can be parsed from a std::istream via the stream operator.

Template Parameters

value_type The type to check whether it's stremable via std::istream.

Read up on how to make a type model this concept here:

How to make your custom type model sharg::parsable.

Requirements

std::istream must support the (un)formatted input function (operator>>) for an l-value of a given value_type.

This entity is stable. Since version 1.0.