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fix hard-limit on enum range

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This commit is contained in:
neargye 2021-11-26 11:11:51 +02:00
parent 5bc2689fa5
commit f4738bef44
1 changed files with 2 additions and 9 deletions
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11
include/magic_enum.hpp
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@ -131,13 +131,8 @@ struct enum_range {
static_assert(max > min, "magic_enum::customize::enum_range requires max > min.");
};
static_assert(MAGIC_ENUM_RANGE_MIN <= 0, "MAGIC_ENUM_RANGE_MIN must be less or equals than 0.");
static_assert(MAGIC_ENUM_RANGE_MIN > (std::numeric_limits<std::int16_t>::min)(), "MAGIC_ENUM_RANGE_MIN must be greater than INT16_MIN.");
static_assert(MAGIC_ENUM_RANGE_MAX > 0, "MAGIC_ENUM_RANGE_MAX must be greater than 0.");
static_assert(MAGIC_ENUM_RANGE_MAX < (std::numeric_limits<std::int16_t>::max)(), "MAGIC_ENUM_RANGE_MAX must be less than INT16_MAX.");
static_assert(MAGIC_ENUM_RANGE_MAX > MAGIC_ENUM_RANGE_MIN, "MAGIC_ENUM_RANGE_MAX must be greater than MAGIC_ENUM_RANGE_MIN.");
static_assert((MAGIC_ENUM_RANGE_MAX - MAGIC_ENUM_RANGE_MIN) < (std::numeric_limits<std::uint16_t>::max)(), "MAGIC_ENUM_RANGE must be less than UINT16_MAX.");
// If need custom names for enum, add specialization enum_name for necessary enum type.
template <typename E>
@ -392,7 +387,6 @@ constexpr int reflected_min() noexcept {
return 0;
} else {
constexpr auto lhs = customize::enum_range<E>::min;
static_assert(lhs > (std::numeric_limits<std::int16_t>::min)(), "magic_enum::enum_range requires min must be greater than INT16_MIN.");
constexpr auto rhs = (std::numeric_limits<U>::min)();
if constexpr (cmp_less(rhs, lhs)) {
@ -412,7 +406,6 @@ constexpr int reflected_max() noexcept {
return std::numeric_limits<U>::digits - 1;
} else {
constexpr auto lhs = customize::enum_range<E>::max;
static_assert(lhs < (std::numeric_limits<std::int16_t>::max)(), "magic_enum::enum_range requires max must be less than INT16_MAX.");
constexpr auto rhs = (std::numeric_limits<U>::max)();
if constexpr (cmp_less(lhs, rhs)) {
@ -494,7 +487,7 @@ constexpr std::size_t range_size() noexcept {
static_assert(is_enum_v<E>, "magic_enum::detail::range_size requires enum type.");
constexpr auto max = IsFlags ? log2(max_v<E, IsFlags>) : max_v<E, IsFlags>;
constexpr auto min = IsFlags ? log2(min_v<E, IsFlags>) : min_v<E, IsFlags>;
constexpr auto range_size = max - min + U{1};
constexpr auto range_size = max - min + 1;
static_assert(range_size > 0, "magic_enum::enum_range requires valid size.");
static_assert(range_size < (std::numeric_limits<std::uint16_t>::max)(), "magic_enum::enum_range requires valid size.");