[PATCH] Default special members of regex types and add noexcept

[Jonathan Wakely <jwakely at redhat dot com>]

Nothing very exciting, just adding noexcept and defaulting some
members.

	* include/bits/regex.h (sub_match): Add noexcept to default
	constructor and length observer.
	(match_results): Add noexcept to default constructor and observers
	with no preconditions. Define destructor as defaulted.
	(operator==, operator!=, swap): Add noexcept.
	(regex_iterator): Add default member initializers and define default
	constructor and destructor as defaulted. Add noexcept to equality
	and dereference operators.

Tested powerpc64le-linux, committed to trunk.

Attachment: patch.txt
Description: Text document