Function template get

boost::get — Extracts the Ith element from a constant array.

Synopsis

// In header: <boost/array.hpp>


template<size_t Idx, typename T, size_t N> 
  const T & get(const boost::array< T, N > & arr);

This function wxtracts the Idx -th element element from a constant array.

Unlike at and operator[], the condition that Idx is in the range [0,N) is enforced at compile-time.

Complexity.

Constant

Preconditions.

Idx < size()

See Also:

at, operator[]

Parameters:

arr

array whose contents to extract

Template Parameters:

Returns:

A constant reference to the Ith element of arr