Reference: https://www.iso.org/sites/directives/current/part2/index.xhtml#_idTextAnchor218

Fixes cplusplus#5098

and format them using \textsc

Also check for uppercase hex digits inside \ucode and \unicode,
which do not work well with \textsc.

…5076)

and augment the automatic checks to flag literal 'ISO C'.

…us#5122)

Also rename [refwrap.const], because it does not specify
any destructors.

In contrast to errors, which use a colon, an OK comment
is not followed by any unique reason why the code is
well-formed, but by a subjective highlighting of a fact.

and augment the autmatic checks accordingly.

We introduce POSIX as an alias for ISO/IEC 9945, and we use 'POSIX'
everywhere else.

POSIX does not define the term 'conversion directive'.

…splus#4777)

This fixes a misapplication of the resolution of LWG 3539.

…plusplus#5067)

The term is undefined and does not improve the specification.

They are not part of the character name or alias.
The presentation in ISO 10646 is misleading, though.

The former is ambiguous with U+1F514 BELL.
The ALERT alias is defined in UCD NameAliases.txt.

Also introduce a label 'term.array.type' in [dcl.array].

…its (cplusplus#5105)

Those were missing in a few places, notably [rand].

Also add an automated check.

…uirements

consistent with the specification of other -seq non-terminals.

…plusplus#4026)

Initialization is fully specified in [dcl.init],
so turn the list of default-initialization cases
into a note and shorten it appropriately.

Highlight that constructors and destructors do not have a
return type and thus a return statement within a constructor
or destructor cannot have an operand.

The wording at [temp.param]/15 says:
> A template-parameter shall not be given default arguments by two
> different declarations if one is reachable from the other.

But it is conflicted with [basic.def.odr]/13:
> There can be more than one definition of a
> ...
> 	default template argument
> ...
> in a program provided that each definition appears in a different
> translation unit and the definitions satisfy the [same-meaning
> criteria of the ODR].

[temp.param] should be deleted otherwise we couldn't modularize a real
project.

…lus#5207)

* [macros] In \ucode, improve sizes of digits and letters.

We do this by typesetting letters in small-caps of the body font,
and digits using the font "smaller by 1 step" (e.g. 10pt -> 8pt).
This combination seems to look perfectly harmonious for
normal body text and notes.

This works around the absence of "small-caps sized lining numerals"
in Latin Modern. The fact that LMR has separate optical sizes for the
size range in question makes this combination work well.

Also annotate the 'void' and 'int' keywords.

…usplus#5222)

The class-specific allocation and deallocation functions,
whose declaration properties are specified in this section,
are class member functions.

Rename the heading to "Allocation and deallocation functions",
which is more appropriate for the contents of the subclause.

Make the entries for 'allocation function' and
'deallocation function' singular.