diff options
Diffstat (limited to 'src/ints/udl.hpp')
| -rw-r--r-- | src/ints/udl.hpp | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/ints/udl.hpp b/src/ints/udl.hpp index e3e5fcc..ecb5478 100644 --- a/src/ints/udl.hpp +++ b/src/ints/udl.hpp @@ -19,7 +19,7 @@ // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. -# include "../sanity.hpp" +# include "fwd.hpp" # include <cstdint> @@ -121,14 +121,17 @@ namespace ints ullong magnitude = V; template<class T> + constexpr operator T() { typedef typename std::make_unsigned<T>::type U; - - constexpr bool is_signed = T(-1) < T(0); + // boo, body of constexpr function can't use variables +# define is_signed bool(T(-1) < T(0)) static_assert(is_signed >= (sign && magnitude), "signed"); - constexpr ullong max = ullong(U(-1) >> is_signed); +# define max ullong(ullong(U(-1) >> is_signed)) static_assert(magnitude <= max || (sign && magnitude == max + 1), "magna"); +# undef is_signed +# undef max return sign ? T(ullong(-magnitude)) : T(magnitude); } }; @@ -162,6 +165,7 @@ namespace ints struct nint64 { int64_t value; int64_t operator -() { return value; } }; template<char... C> + constexpr SignedMagnitudeConstant<false, IntParser<C...>::value> operator "" _const() { return {}; } |