Re: C++ Primer ex 9.14

From:
 James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Sun, 16 Sep 2007 20:10:23 -0000
Message-ID:
<1189973423.399793.64610@w3g2000hsg.googlegroups.com>
On Sep 16, 1:02 pm, Erik Wikstr=F6m <Erik-wikst...@telia.com> wrote:
    [...]

It runs fine. Is there any way I can replace what while loop with
std::copy ?


Might be, you would have to use std::istream_iterators and a back insert
iterator to add the elements to the vector, something like (untested):

std::copy(
   std::istream_iterator<std::string>(std::cin),
   std::istream_iterator<std::string>() // The same as end() for a stream
   std::back_insert_iterator<std::vector>(vec)
);


Even simpler would be to use the istream_iterators to initialize
the container. Something like:

    std::vector< std::string > vec(
        (std::istream_iterator< std::string >( std::cin )),
        (std::istream_iterator< std::string >()) ) ;

(Note that the outermost parentheses around the arguments are
necessary to prevent the compiler from interpreting the
statement as a function declaration.)

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James Kanze (GABI Software) email:james.kanze@gmail.com
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