runtime/platform/utils_macos.h - Issue 10805080: Fix the build breakage on MacOS and Windows caused by CountTrailingZeros.

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Side by Side Diff: runtime/platform/utils_macos.h

Issue 10805080: Fix the build breakage on MacOS and Windows caused by CountTrailingZeros. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 8 years, 5 months ago

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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file	1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file

2 // for details. All rights reserved. Use of this source code is governed by a	2 // for details. All rights reserved. Use of this source code is governed by a

3 // BSD-style license that can be found in the LICENSE file.	3 // BSD-style license that can be found in the LICENSE file.

4	4

5 #ifndef PLATFORM_UTILS_MACOS_H_	5 #ifndef PLATFORM_UTILS_MACOS_H_

6 #define PLATFORM_UTILS_MACOS_H_	6 #define PLATFORM_UTILS_MACOS_H_

7	7

8 namespace dart {	8 namespace dart {

9	9

10 inline int Utils::CountTrailingZeros(uint32_t x) {	10 inline int Utils::CountTrailingZeros(uword x) {

	11 #if defined(ARCH_IS_32_BIT)

11 return __builtin_ctzl(x);	12 return __builtin_ctzl(x);

12 };	13 #elif defined(ARCH_IS_64_BIT)

13

14 inline int Utils::CountTrailingZeros(uint64_t x) {

15 return __builtin_ctzll(x);	14 return __builtin_ctzll(x);

	15 #else

	16 #error Architecture is not 32-bit or 64-bit.

	17 #endif

16 };	18 };

17	19

18 } // namespace dart	20 } // namespace dart

19	21

20 #endif // PLATFORM_UTILS_MACOS_H_	22 #endif // PLATFORM_UTILS_MACOS_H_

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