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add check max/min

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terik23 2019-04-25 21:57:00 +05:00
parent 7ba9b945de
commit ec5a59e825
2 changed files with 3 additions and 0 deletions
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1
include/nameof.hpp
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@ -59,6 +59,7 @@ struct enum_range final {
static_assert(std::is_enum_v<E>, "nameof::enum_range requires enum type."); static_assert(std::is_enum_v<E>, "nameof::enum_range requires enum type.");
static constexpr int min = std::is_signed_v<std::underlying_type_t<E>> ? NAMEOF_ENUM_RANGE_MIN : 0; static constexpr int min = std::is_signed_v<std::underlying_type_t<E>> ? NAMEOF_ENUM_RANGE_MIN : 0;
static constexpr int max = NAMEOF_ENUM_RANGE_MAX; static constexpr int max = NAMEOF_ENUM_RANGE_MAX;
static_assert(max > min, "nameof::enum_range requires max > min.");
}; };
namespace detail { namespace detail {

2
test/test.cpp
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@ -82,8 +82,10 @@ enum number : unsigned long { zero = 0, one = 100, two = 200, three = 300, four
namespace nameof { namespace nameof {
template <> template <>
struct enum_range<number> { struct enum_range<number> {
static_assert(std::is_enum_v<number>, "nameof::enum_range<number> requires enum type.");
static constexpr int min = 100; static constexpr int min = 100;
static constexpr int max = 300; static constexpr int max = 300;
static_assert(max > min, "nameof::enum_range<number> requires max > min.");
}; };
} }