diff options
Diffstat (limited to 'Include/pymacro.h')
| -rw-r--r-- | Include/pymacro.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/Include/pymacro.h b/Include/pymacro.h index 3f6f5dce61..2a839abf81 100644 --- a/Include/pymacro.h +++ b/Include/pymacro.h @@ -18,6 +18,9 @@ by "__LINE__". */ #define Py_STRINGIFY(x) _Py_XSTRINGIFY(x) +/* Get the size of a structure member in bytes */ +#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member) + /* Argument must be a char or an int in [-128, 127] or [0, 255]. */ #define Py_CHARMASK(c) ((unsigned char)((c) & 0xff)) @@ -36,6 +39,10 @@ #define Py_BUILD_ASSERT_EXPR(cond) \ (sizeof(char [1 - 2*!(cond)]) - 1) +#define Py_BUILD_ASSERT(cond) do { \ + (void)Py_BUILD_ASSERT_EXPR(cond); \ + } while(0) + /* Get the number of elements in a visible array This does not work on pointers, or arrays declared as [], or function @@ -75,12 +82,12 @@ #define _Py_SIZE_ROUND_UP(n, a) (((size_t)(n) + \ (size_t)((a) - 1)) & ~(size_t)((a) - 1)) /* Round pointer "p" down to the closest "a"-aligned address <= "p". */ -#define _Py_ALIGN_DOWN(p, a) ((void *)((Py_uintptr_t)(p) & ~(Py_uintptr_t)((a) - 1))) +#define _Py_ALIGN_DOWN(p, a) ((void *)((uintptr_t)(p) & ~(uintptr_t)((a) - 1))) /* Round pointer "p" up to the closest "a"-aligned address >= "p". */ -#define _Py_ALIGN_UP(p, a) ((void *)(((Py_uintptr_t)(p) + \ - (Py_uintptr_t)((a) - 1)) & ~(Py_uintptr_t)((a) - 1))) +#define _Py_ALIGN_UP(p, a) ((void *)(((uintptr_t)(p) + \ + (uintptr_t)((a) - 1)) & ~(uintptr_t)((a) - 1))) /* Check if pointer "p" is aligned to "a"-bytes boundary. */ -#define _Py_IS_ALIGNED(p, a) (!((Py_uintptr_t)(p) & (Py_uintptr_t)((a) - 1))) +#define _Py_IS_ALIGNED(p, a) (!((uintptr_t)(p) & (uintptr_t)((a) - 1))) #ifdef __GNUC__ #define Py_UNUSED(name) _unused_ ## name __attribute__((unused)) |