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- /*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkEnumOperators_DEFINED
- #define SkEnumOperators_DEFINED
- #include "include/private/SkTLogic.h"
- namespace skstd {
- template <typename T> struct is_bitmask_enum : std::false_type {};
- }
- template <typename E> SK_WHEN(skstd::is_bitmask_enum<E>::value, E) operator|(E l, E r) {
- using U = typename std::underlying_type<E>::type;
- return static_cast<E>(static_cast<U>(l) | static_cast<U>(r));
- }
- template <typename E> SK_WHEN(skstd::is_bitmask_enum<E>::value, E&) operator|=(E& l, E r) {
- return l = l | r;
- }
- template <typename E> SK_WHEN(skstd::is_bitmask_enum<E>::value, E) operator&(E l, E r) {
- using U = typename std::underlying_type<E>::type;
- return static_cast<E>(static_cast<U>(l) & static_cast<U>(r));
- }
- template <typename E> SK_WHEN(skstd::is_bitmask_enum<E>::value, E&) operator&=(E& l, E r) {
- return l = l & r;
- }
- #endif // SkEnumOperators_DEFINED
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