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| 102 | |
102 | |
| 103 | #if __clang__ && defined(__has_builtin) |
103 | #if __clang__ && defined(__has_builtin) |
| 104 | #define ECB_CLANG_BUILTIN(x) __has_builtin(x) |
104 | #define ECB_CLANG_BUILTIN(x) __has_builtin(x) |
| 105 | #else |
105 | #else |
| 106 | #define ECB_CLANG_BUILTIN(x) 0 |
106 | #define ECB_CLANG_BUILTIN(x) 0 |
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107 | #endif |
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108 | |
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109 | #if __clang__ && defined(__has_extension) |
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110 | #define ECB_CLANG_EXTENSION(x) __has_extension(x) |
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111 | #else |
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112 | #define ECB_CLANG_EXTENSION(x) 0 |
| 107 | #endif |
113 | #endif |
| 108 | |
114 | |
| 109 | #define ECB_CPP (__cplusplus+0) |
115 | #define ECB_CPP (__cplusplus+0) |
| 110 | #define ECB_CPP11 (__cplusplus >= 201103L) |
116 | #define ECB_CPP11 (__cplusplus >= 201103L) |
| 111 | |
117 | |
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| 195 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
201 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
| 196 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
202 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
| 197 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
203 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
| 198 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
204 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
| 199 | |
205 | |
| 200 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
206 | #elif ECB_CLANG_EXTENSION(c_atomic) |
| 201 | * without risking compile time errors with other compilers. We *could* |
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| 202 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
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| 203 | * around this shit time and again. |
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| 204 | * #elif defined __clang && __has_feature (cxx_atomic) |
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| 205 | * // see comment below (stdatomic.h) about the C11 memory model. |
207 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
| 206 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
208 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
| 207 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
209 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
| 208 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
210 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
| 209 | */ |
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| 210 | |
211 | |
| 211 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
212 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
| 212 | #define ECB_MEMORY_FENCE __sync_synchronize () |
213 | #define ECB_MEMORY_FENCE __sync_synchronize () |
| 213 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
214 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
| 214 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
215 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
