[Patch] regex_iterator and regex_token_iterator implementation

[Paolo Carlini]

On 07/22/2013 02:47 AM, Tim Shen wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57513 is already in the
> testsuite and can passed(even before this patch?).
>
> To fully test it, a fully regex_search implementation is required. I'm
> working on a (damning) backtracking engine for it.
A couple of comments on the patch: the operator++, operator=, 
operator==, and _M_init are definitely too big to be inline. Also you 
are wrongly "un-uglyfying" many names, eg:

-      position_iterator __position;
-      const value_type* __result;
-      value_type        __suffix;
-      std::size_t       __n;
-      std::vector<int>  __subs;


Remember all the names must begin by double underscore or single 
underscore, etc.

Paolo.