Pavol Droba <droba@topmail.sk> writes:
On Tue, Apr 06, 2004 at 11:59:00AM +0100, John Maddock wrote: Hi,
So we make match_results implicitly convertible to it's iterator type? I'm not necessarily against that, but there are dangers: mainly as Alan stated that you can easily miss corner cases (when the regex matches a zero-length string).
I just want to add 0.02p.
Maybe it would be good, to make regex match_results convertible to the iterator_range defined in the string algo library. iterator_range is used as a result of find operations, it is convertible to safe-bool and its purpose is to delimit a part of a collection.
It was requested during the review of the string algo library, that this facility should be extracted and documented as a general purpose utility. It can be standardized then as a generic result of find operation.
What would be the advantage? User can write
iterator_range res=regex_maxch(...);
Doesn't the match object get destroyed here, thereby invalidating the iterators? -- Dave Abrahams Boost Consulting www.boost-consulting.com