diff options
Diffstat (limited to 'compat')
| -rw-r--r-- | compat/enum-operators.hpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/compat/enum-operators.hpp b/compat/enum-operators.hpp new file mode 100644 index 00000000..e956c461 --- /dev/null +++ b/compat/enum-operators.hpp @@ -0,0 +1,28 @@ +#pragma once + +#include <type_traits> + +#define OTR_FLAGS_OP2(type, op) \ + inline type operator op (type a, type b) \ + { \ + using t__ = std::underlying_type_t<type>; \ + return static_cast<type>(t__((a)) op t__((b))); \ + } // end + +#define OTR_FLAGS_SHIFT(type, op) \ + type operator op (type, unsigned) = delete; + +#define OTR_FLAGS_OP1(type, op) \ + inline type operator op (type x) \ + { \ + using t__ = std::underlying_type_t<type>; \ + return static_cast<type>(t__((x))); \ + } // end + +#define DEFINE_ENUM_OPERATORS(type) \ + OTR_FLAGS_OP2(type, |) \ + OTR_FLAGS_OP2(type, &) \ + OTR_FLAGS_OP2(type, ^) \ + OTR_FLAGS_OP1(type, ~) \ + OTR_FLAGS_SHIFT(type, <<); \ + OTR_FLAGS_SHIFT(type, >>); // end |