On 6/4/07, Chris Weed <chrisweed@gmail.com> wrote:
On 6/3/07, Benoit Hudson <benoit.hudson@gmail.com> wrote:
Reading the archives, I see that the idea of adding a template <unsigned i> T get(); function to boost::array has been somewhat summarily rejected as unnecessary: http://lists.boost.org/boost-users/2005/08/12983.php et seq.
And yet I'm finding myself wanting it repeatedly. Here are three places I've seen it crop up:
Isn't this functionality available using the boost::fusion extension for array? You might want to take a look at boost::fusion. Chris
Doesn't appear to. The following compiles against CVS of 5 minutes ago, without error: #include <boost/array.hpp> #include <boost/fusion/sequence/adapted.hpp> #include <boost/fusion/sequence/intrinsic.hpp> boost::array<int, 3> arr = {{ 1, 2, 3}}; int x() { // arr[4] return boost::fusion::at_c<4>(arr); } It compiles down to a call to __assert_fail, which is the same behaviour as just using arr[4]. -- Benoît