jh::pod::streamable Concept Reference

Checks whether a type can be streamed to std::ostream. More...

#include <jh/pods/stringify.h>

Concept definition

    template<typename T>
    concept streamable = requires(std::ostream &os, const T &value) {
        { os << value } -> std::same_as<std::ostream &>;
    }

Detailed Description

Checks whether a type can be streamed to std::ostream.

Evaluates whether os << value is a valid expression producing std::ostream&.

Note

This concept relies on ADL. Users may override or extend streamability by providing their own operator<<.

Warning

Intended for debugging and inspection only. Not a guarantee of production-grade output.