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    std::meta::reflect_function

    From cppreference.com
    < cpp | meta
     
    C++
     
    Metaprogramming library
    Type traits
    Compile-time rational arithmetic
    Compile-time integer sequences
    (C++14)
    Compile-time reflection
     
    Defined in header <meta> 
    template< class T >
consteval std::meta::info reflect_function( T& fn );
    		(since C++26)

    Returns a reflection that represents the function referred to by fn.

    The program is ill-formed if T is not a function type.

    Parameters

    r - an lvalue that refers to a function

    Return value

    A reflection that represents a function.

    Exceptions

    Throws std::meta::exception unless a glvalue constant expression E that refers to the function fn is a valid template argument for a template parameter of type T&.

    Notes

    This function can be used to create a reflection of a function whose name is overloaded. 

    int f(char); // #1
int f(long); // #2

constexpr auto rf1 = ^^f; // error: cannot reflect an overload set
constexpr auto rf2 = std::meta::reflect_function<int(char)>(f); // OK, rf2 represents overload #1

    Example

    This section is incomplete
    Reason: no example

    See also

    (C++26)
    		 returns a reflection representing a value or template parameter object, suitable for use as a constant template argument
    (function template) [edit]
    (C++26)
    		 returns a reflection representing an object, suitable for use as a constant template argument
    (function template) [edit]
    (C++26)
    		 substitutes the given arguments in the given template, and returns a reflection of the result of substitution
    (function template) [edit]