diff options
Diffstat (limited to 'src/prelude.h')
| -rw-r--r-- | src/prelude.h | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/src/prelude.h b/src/prelude.h index 72f88b0..0944df1 100644 --- a/src/prelude.h +++ b/src/prelude.h @@ -16,7 +16,8 @@ #define C17 201710L #define C23 202311L -#include <stddef.h> +// Get the static_assert() definition as well as __GLIBC__ +#include <assert.h> #if __STDC_VERSION__ < C23 # include <stdalign.h> @@ -49,6 +50,9 @@ extern const char bfs_version[]; #if __has_include(<paths.h>) # define BFS_HAS_PATHS_H true #endif +#if __has_include(<stdbit.h>) +# define BFS_HAS_STDBIT_H true +#endif #if __has_include(<sys/extattr.h>) # define BFS_HAS_SYS_EXTATTR_H true #endif @@ -75,6 +79,7 @@ extern const char bfs_version[]; #define BFS_HAS_MNTENT_H __GLIBC__ #define BFS_HAS_PATHS_H true +#define BFS_HAS_STDBIT_H (__STDC_VERSION__ >= C23) #define BFS_HAS_SYS_EXTATTR_H __FreeBSD__ #define BFS_HAS_SYS_MKDEV_H false #define BFS_HAS_SYS_PARAM_H true @@ -132,7 +137,7 @@ extern const char bfs_version[]; /** * Get the length of an array. */ -#define countof(array) (sizeof(array) / sizeof(0[array])) +#define countof(...) (sizeof(__VA_ARGS__) / sizeof(0[__VA_ARGS__])) /** * False sharing/destructive interference/largest cache line size. @@ -153,21 +158,6 @@ extern const char bfs_version[]; #endif /** - * Polyfill max_align_t if we don't already have it. - */ -#if !BFS_HAS_MAX_ALIGN_T -typedef union { -# ifdef __BIGGEST_ALIGNMENT__ - alignas(__BIGGEST_ALIGNMENT__) char c; -# else - long double ld; - long long ll; - void *ptr; -# endif -} max_align_t; -#endif - -/** * Alignment specifier that avoids false sharing. */ #define cache_align alignas(FALSE_SHARING_SIZE) |