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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef PPAPI_CPP_LOGGING_H_ | 5 #ifndef PPAPI_CPP_LOGGING_H_ |
6 #define PPAPI_CPP_LOGGING_H_ | 6 #define PPAPI_CPP_LOGGING_H_ |
7 | 7 |
8 /// @file | 8 /// @file |
9 /// This file defines two macro asserts. | 9 /// This file defines two macro asserts. |
10 | 10 |
11 #include <cassert> | 11 #include <cassert> |
12 | 12 |
13 /// This macro asserts that 'a' evaluates to true. In debug mode, this macro | 13 /// This macro asserts that 'a' evaluates to true. In debug mode, this macro |
14 /// will crash the program if the assertion evaluates to false. It (typically) | 14 /// will crash the program if the assertion evaluates to false. It (typically) |
15 /// has no effect in release mode. | 15 /// has no effect in release mode. |
| 16 #if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
16 #define PP_DCHECK(a) assert(a) | 17 #define PP_DCHECK(a) assert(a) |
| 18 #else // !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
| 19 #define PP_DCHECK(a) |
| 20 #endif // !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
17 | 21 |
18 /// This macro asserts false in debug builds. It's used in code paths that you | 22 /// This macro asserts false in debug builds. It's used in code paths that you |
19 /// don't expect to execute. | 23 /// don't expect to execute. |
20 /// | 24 /// |
21 /// <strong>Example:</strong> | 25 /// <strong>Example:</strong> |
22 /// | 26 /// |
23 /// @code | 27 /// @code |
24 /// if (!pointer) { | 28 /// if (!pointer) { |
25 /// // Pointer wasn't valid! This shouldn't happen. | 29 /// // Pointer wasn't valid! This shouldn't happen. |
26 /// PP_NOTREACHED(); | 30 /// PP_NOTREACHED(); |
27 /// return; | 31 /// return; |
28 /// } | 32 /// } |
29 /// // Do stuff to the pointer, since you know it's valid. | 33 /// // Do stuff to the pointer, since you know it's valid. |
30 /// pointer->DoSomething(); | 34 /// pointer->DoSomething(); |
31 /// @endcode | 35 /// @endcode |
| 36 #if !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
32 #define PP_NOTREACHED() assert(false) | 37 #define PP_NOTREACHED() assert(false) |
| 38 #else // !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
| 39 #define PP_NOTREACHED() |
| 40 #endif // !defined(NDEBUG) || defined(DCHECK_ALWAYS_ON) |
33 | 41 |
34 #endif // PPAPI_CPP_LOGGING_H_ | 42 #endif // PPAPI_CPP_LOGGING_H_ |
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