static SPROUT_CONSTEXPR bool eq_int_type(int_type c1, int_type c2) SPROUT_NOEXCEPT;
#include <sprout/string.hpp>
using namespace sprout;
SPROUT_STATIC_CONSTEXPR int x = 'H';
SPROUT_STATIC_CONSTEXPR int y = 'H';
SPROUT_STATIC_CONSTEXPR auto result = char_traits<char>::eq_int_type(x, y);
static_assert(result, "x is equal to y.");