[Gllug] C++ Templates, Opinions?

[Richard Jones]

On Sun, Dec 19, 2004 at 11:44:26PM +0000, Nix wrote:
> >                                       or regular expressions, or
> 
> See Boost.

Ah yes ...

  template <class BidirectionalIterator, class Allocator, class charT,
            class traits, class Allocator2>
  bool regex_match(BidirectionalIterator first, BidirectionalIterator last,
                   match_results<BidirectionalIterator, Allocator>& m,
                   const basic_regex<charT, traits, Allocator2>& e,
                   match_flag_type flags = match_default);
                   
  template <class BidirectionalIterator, class charT, class traits, class Allocator2>
  bool regex_match(BidirectionalIterator first, BidirectionalIterator last,
                   const basic_regex<charT, traits, Allocator2>& e,
                   match_flag_type flags = match_default);
                   
  template <class charT, class Allocator, class traits, class Allocator2>
  bool regex_match(const charT* str, match_results<const charT*, Allocator>& m,
                   const basic_regex<charT, traits, Allocator2>& e,
                   match_flag_type flags = match_default);
                   
  template <class ST, class SA, class Allocator, class charT,
            class traits, class Allocator2>
  bool regex_match(const basic_string<charT, ST, SA>& s,
                   match_results<typename basic_string<charT, ST, SA>::const_iterator, Allocator>& m, 
                   const basic_regex<charT, traits, Allocator2>& e, 
                   match_flag_type flags = match_default);
                   
  template <class charT, class traits, class Allocator2>
  bool regex_match(const charT* str,
                   const basic_regex<charT, traits, Allocator2>& e,
                   match_flag_type flags = match_default);
                   
  template <class ST, class SA, class charT, class traits, class Allocator2>
  bool regex_match(const basic_string<charT, ST, SA>& s,
                   const basic_regex<charT, traits, Allocator2>& e,
                   match_flag_type flags = match_default);

It's so simple when you know how :-)

$str =~ /regex/;

Boost's garbage collection seems to be based on reference counting (am
I right in saying this?)  Refcounting isn't really garbage collection
at all, and it imposes a serious overhead in both space and time.  One
weakness of Perl, which should be fixed in Perl6 IIRC.

Rich.

-- 
Richard Jones.  http://www.annexia.org/  http://www.j-london.com/
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