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