Cannot get array type from boost::array

[anonymous]

There is no function to get array from the boost::array. c_array returns pointer, and operator[] returns reference.

There must be additional function, as_array.

array<T, N> {

typedef T array_type[N];

array_type& as_array() { return elems; } array_type const& as_array() const { return elems; }

}

It is needed to allow optimizations when function has special overload for arrays. Like std::copy in VC compiler:

1. copy(Input first, Input last, Output dest)
2. copy(Input first, Input last, OutElem (&dest)[size])

[anonymous]

Sorry for missing code formatting.

array<T, N>
{
    typedef T array_type[N];

    array_type&       as_array()       { return elems; }
    array_type const& as_array() const { return elems; }
}
 

[NN]

There is a solution to use elems public member. It is nicer to have a method for this.

[Marshall Clow]

How does this differ from ticket #2857 ?

[Marshall Clow]

Closing as a duplicate of #2857