1 /*
2 * Copyright 2017 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #ifndef WINDOWS_UTILS_H
18 #define WINDOWS_UTILS_H
19
20 #if defined(_WIN32)
21 #define DISABLE_TEST_WINDOWS(TEST_NAME) DISABLED_##TEST_NAME
22 #define FRIEND_TEST_WINDOWS_DISABLED_EXPANDED(SUITE, TEST_NAME) \
23 FRIEND_TEST(SUITE, TEST_NAME)
24 #define FRIEND_TEST_WINDOWS_DISABLED(SUITE, TEST_NAME) \
25 FRIEND_TEST_WINDOWS_DISABLED_EXPANDED(SUITE, DISABLE_TEST_WINDOWS(TEST_NAME))
26
27 #define NOMINMAX
28
29 // ACE PC preivew.
30 #ifdef WINDOWS_PLATFORM
31 #include <basetsd.h>
32 #else
33 #include <BaseTsd.h>
34 #endif
35
36 #include <intrin.h>
37 #include <windows.h>
38
39 #undef ERROR
40
clz_win(unsigned int num)41 inline unsigned int clz_win(unsigned int num) {
42 unsigned long r = 0;
43 _BitScanReverse(&r, num);
44 return r;
45 }
46
clzl_win(unsigned long num)47 inline unsigned int clzl_win(unsigned long num) {
48 unsigned long r = 0;
49 _BitScanReverse64(&r, num);
50 return r;
51 }
52
ctz_win(unsigned int num)53 inline unsigned int ctz_win(unsigned int num) {
54 unsigned long r = 0;
55 _BitScanForward(&r, num);
56 return r;
57 }
58
59 typedef SSIZE_T ssize_t;
60
61 #else
62 #define DISABLE_TEST_WINDOWS(TEST_NAME) TEST_NAME
63 #define FRIEND_TEST_WINDOWS_DISABLED(SUITE, TEST_NAME) \
64 FRIEND_TEST(SUITE, TEST_NAME)
65 #endif // defined(_WIN32)
66 #endif // WINDOWS_UTILS_H
67