| | #ifndef Py_PYMACRO_H |
| | #define Py_PYMACRO_H |
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| | |
| | #define Py_MIN(x, y) (((x) > (y)) ? (y) : (x)) |
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| | |
| | #define Py_MAX(x, y) (((x) > (y)) ? (x) : (y)) |
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| | |
| | #define Py_ABS(x) ((x) < 0 ? -(x) : (x)) |
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| | #define _Py_XSTRINGIFY(x) #x |
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| | |
| | #define Py_STRINGIFY(x) _Py_XSTRINGIFY(x) |
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| | |
| | #define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member) |
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| | |
| | #define Py_CHARMASK(c) ((unsigned char)((c) & 0xff)) |
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| | |
| | #define Py_BUILD_ASSERT_EXPR(cond) \ |
| | (sizeof(char [1 - 2*!(cond)]) - 1) |
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| | #define Py_BUILD_ASSERT(cond) do { \ |
| | (void)Py_BUILD_ASSERT_EXPR(cond); \ |
| | } while(0) |
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| | |
| | #if (defined(__GNUC__) && !defined(__STRICT_ANSI__) && \ |
| | (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ >= 4))) |
| | |
| | |
| | #define Py_ARRAY_LENGTH(array) \ |
| | (sizeof(array) / sizeof((array)[0]) \ |
| | + Py_BUILD_ASSERT_EXPR(!__builtin_types_compatible_p(typeof(array), \ |
| | typeof(&(array)[0])))) |
| | #else |
| | #define Py_ARRAY_LENGTH(array) \ |
| | (sizeof(array) / sizeof((array)[0])) |
| | #endif |
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| | |
| | #define PyDoc_VAR(name) static const char name[] |
| | #define PyDoc_STRVAR(name,str) PyDoc_VAR(name) = PyDoc_STR(str) |
| | #ifdef WITH_DOC_STRINGS |
| | #define PyDoc_STR(str) str |
| | #else |
| | #define PyDoc_STR(str) "" |
| | #endif |
| |
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| | |
| | |
| | #define _Py_SIZE_ROUND_DOWN(n, a) ((size_t)(n) & ~(size_t)((a) - 1)) |
| | |
| | #define _Py_SIZE_ROUND_UP(n, a) (((size_t)(n) + \ |
| | (size_t)((a) - 1)) & ~(size_t)((a) - 1)) |
| | |
| | #define _Py_ALIGN_DOWN(p, a) ((void *)((uintptr_t)(p) & ~(uintptr_t)((a) - 1))) |
| | |
| | #define _Py_ALIGN_UP(p, a) ((void *)(((uintptr_t)(p) + \ |
| | (uintptr_t)((a) - 1)) & ~(uintptr_t)((a) - 1))) |
| | |
| | #define _Py_IS_ALIGNED(p, a) (!((uintptr_t)(p) & (uintptr_t)((a) - 1))) |
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| | |
| | #if defined(__GNUC__) || defined(__clang__) |
| | # define Py_UNUSED(name) _unused_ ## name __attribute__((unused)) |
| | #else |
| | # define Py_UNUSED(name) _unused_ ## name |
| | #endif |
| |
|
| | #if defined(RANDALL_WAS_HERE) |
| | # define Py_UNREACHABLE() \ |
| | Py_FatalError( \ |
| | "If you're seeing this, the code is in what I thought was\n" \ |
| | "an unreachable state.\n\n" \ |
| | "I could give you advice for what to do, but honestly, why\n" \ |
| | "should you trust me? I clearly screwed this up. I'm writing\n" \ |
| | "a message that should never appear, yet I know it will\n" \ |
| | "probably appear someday.\n\n" \ |
| | "On a deep level, I know I'm not up to this task.\n" \ |
| | "I'm so sorry.\n" \ |
| | "https://xkcd.com/2200") |
| | #elif defined(Py_DEBUG) |
| | # define Py_UNREACHABLE() \ |
| | Py_FatalError( \ |
| | "We've reached an unreachable state. Anything is possible.\n" \ |
| | "The limits were in our heads all along. Follow your dreams.\n" \ |
| | "https://xkcd.com/2200") |
| | #elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)) |
| | # define Py_UNREACHABLE() __builtin_unreachable() |
| | #elif defined(__clang__) || defined(__INTEL_COMPILER) |
| | # define Py_UNREACHABLE() __builtin_unreachable() |
| | #elif defined(_MSC_VER) |
| | # define Py_UNREACHABLE() __assume(0) |
| | #else |
| | # define Py_UNREACHABLE() \ |
| | Py_FatalError("Unreachable C code path reached") |
| | #endif |
| |
|
| | #endif |
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|