| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_UTIL_H_ |
| #define UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_UTIL_H_ |
| |
| #include <limits.h> |
| |
| namespace ui { |
| |
| #define EVDEV_LONG_BITS (CHAR_BIT * sizeof(long)) |
| #define EVDEV_BITS_TO_LONGS(x) (((x) + EVDEV_LONG_BITS - 1) / EVDEV_LONG_BITS) |
| |
| static inline bool EvdevBitIsSet(const unsigned long* data, int bit) { |
| return data[bit / EVDEV_LONG_BITS] & (1UL << (bit % EVDEV_LONG_BITS)); |
| } |
| |
| } // namespace ui |
| |
| #endif // UI_EVENTS_OZONE_EVDEV_EVENT_DEVICE_UTIL_H_ |
