skia2/include/private/SkBitmaskEnum.h
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

35 lines
1.0 KiB
C++

/*
* 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