Header file array/unary_expr_array.hpp
#define JULES_ARRAY_UNARY_EXPR_ARRAY_H
namespace jules
{
template <typename It, typename Op, std::size_t N>
class unary_expr_array;
template <typename It, typename Op, std::size_t N>
base_array<typename unary_expr_array<It, Op, N>::value_type, N> eval(const unary_expr_array<It, Op, N>& source);
}