template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR bool
operator==(sprout::array<T, N> const& lhs, sprout::array<T, N> const& rhs);
#include <sprout/array.hpp>
using namespace sprout;
SPROUT_STATIC_CONSTEXPR auto x = array<int, 10>{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}};
SPROUT_STATIC_CONSTEXPR auto y = array<int, 10>{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}};
static_assert(x == y, "x is equal to y.");