Hello,

Today I am making my first posts to this group. Please forgive me if I make mistakes. Thank you.

Here is the context:

D.21.2 Header synopsis [depr.codecvt.syn]
namespace std {
enum codecvt_mode {
consume_header = 4,
generate_header = 2,
little_endian = 1
};
template<class Elem, unsigned long Maxcode = 0x10ffff, codecvt_mode Mode = (codecvt_mode)0>
class codecvt_utf8 : public codecvt<Elem, char, mbstate_t> {
public:
explicit codecvt_utf8(size_t refs = 0);
~codecvt_utf8();
};
template<class Elem, unsigned long Maxcode = 0x10ffff, codecvt_mode Mode = (codecvt_mode)0>
class codecvt_utf16 : public codecvt<Elem, char, mbstate_t> {
public:
explicit codecvt_utf16(size_t refs = 0);
~codecvt_utf16();
};
template<class Elem, unsigned long Maxcode = 0x10ffff, codecvt_mode Mode = (codecvt_mode)0>
class codecvt_utf8_utf16 : public codecvt<Elem, char, mbstate_t> {
public:
explicit codecvt_utf8_utf16(size_t refs = 0);
~codecvt_utf8_utf16();
};
}

Yes, I know it is deprecated, but perhaps this is a more general question.

The constant 0x10ffff is of type int.
The template parameter formal Maxcode is of type unsigned long.
Would it be more clear and type-correct if the constant were 0x10ffffUL?

Thank you,

Robert Schwartz