🚀 go-pugleaf

In article <4jvdnd$c9c@hermes.synopsys.com>,
Joe Buck <jbuck@Synopsys.COM> wrote:
>Nico Josuttis <nico@bredex.de> writes:
>>Due to the fact that strings have iterator support,
>>the could be used as stl container.
>
>Correct.
>
>>But two things are missing:
>> - push_back()
>> - clear()
>
>No, these are not needed.
clear() is required for sequenceable containers,
push_back() is optional for sequenceable containers but would make
many sense.
So for the others vector like operations
(pop_back(), front(), back()).

>
>>These are fundamental operations, that the corresponding "normal"
>>container, namely vector, has.
>
>The documentation I have does not list clear as a member of vector.
>
Oh yes, it does, see 23.2.5.6 in vector class structure.

>>Especially push_back() would be essential to use insert iterators
>>for strings.
>
>No, this isn't true.  You need push_back to use back_insert_iterator,
>but insert_iterator only needs insert, which string does have.
>
But insert_iterators are VERY dangerous for sequenceable collections.
They invalidate themself if the position parameter is not end().
So having push_back() would be safer and of course more convenient
(otherwise there is no sense to have it for vectors either).

-- 
Nico                             address: BREDEX GmbH, Nicolai Josuttis
email:   nico@bredex.de                   Fallersleber-Tor-Wall 23
phone:   +49 531 24330-0                  D-38100 Braunschweig
fax:     +49 531 24330-99                 Germany
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