[format.arg] Declaration mismatch

[cpplearner]

An exposition-only constructor of basic_format_arg is declared as

draft/source/utilities.tex

Lines 21583 to 21584 in 6deb181

	template<class T>
	explicit basic_format_arg(const T* p) noexcept; // \expos

in the class template definition, but const is missing in the description:

draft/source/utilities.tex

Line 21739 in 6deb181

template<class T> explicit basic_format_arg(T* p) noexcept;

[jensmaurer]

Given the definition of "value", it seems sufficiently obvious that the description is missing the "const" to fix this editorially.

[cpplearner]

Sorry, it seems that this constructor makes more sense without const. This constructor should be selected when the argument is of type void*. But if the parameter is const T* then template<class T> basic_format_arg(const T&) is a better match.

Can we revert #3465 and make it a LWG issue?

[jensmaurer]

What we did editorially is making the synopsis identical to the function definition. Sorry that this seemingly went the wrong way.

Please feel free to have an LWG issue created, but reverting the editorial fix would re-introduce the inconsistency, which seems to make the situation worse.