Re: auto with array

From:
Jeffrey Schwab <jeff@schwabcenter.com>
Newsgroups:
comp.lang.c++.moderated
Date:
Thu, 5 May 2011 21:41:52 CST
Message-ID:
<4daf4834-8b7d-418c-b6d1-48054bd613a0@glegroupsg2000goo.googlegroups.com>
On Thursday, May 5, 2011 5:51:18 PM UTC-4, SG wrote:

On 4 Mai, 22:13, Sarang wrote:

// too many initializers
auto arr2 = {'a','b','c'};


Weird. As far as I know, this is supposed to work and decltype(arr2)
is supposed to be std::initializer_list<char> in this case. Maybe it
has not yet been implemented in MSVC++.


$ cat main.cpp #include <algorithm>
#include <initializer_list>
#include <iostream>
#include <iterator>

int main() {

    /* No problem in GCC 4.6.0. */
    auto const cs = {'a', 'b', 'c'};

    /* OK */
    for (char const c : cs) {
        std::cout << c;
    }
    std::cout << std::endl;

    /* Also OK */
    std::copy(cs.begin(), cs.end(), std::ostream_iterator<char>( std::cout ));
    std::cout << std::endl;
}
$ make
/home/jeff/opt/gcc/bin/g++ -std=c++0x -pedantic -Wall -I. -Wno-unused-variable -Wno-unused-but-set-variable -o main.o -c main.cpp
../m/home/jeff/opt/gcc/bin/g++ -o main main.o
$ ./main
abc
abc

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