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| author | Emil Williams | 2026-02-20 05:47:11 +0000 |
|---|---|---|
| committer | Emil Williams | 2026-02-20 05:47:11 +0000 |
| commit | d352d3cf415083fd0f07321273d1d03b26a323e0 (patch) | |
| tree | 7f26b6c3a4221c93d3aa33829b29d1dc24145934 | |
| parent | 121737a30db4786d9670e2b95d9e4d3e337d75f5 (diff) | |
| download | libchad-d352d3cf415083fd0f07321273d1d03b26a323e0.tar.xz libchad-d352d3cf415083fd0f07321273d1d03b26a323e0.tar.zst | |
hopefully more portable
| -rw-r--r-- | chad/macros.h | 34 | ||||
| -rw-r--r-- | chad/root.h | 17 | ||||
| -rw-r--r-- | chad/timespec.h | 2 |
3 files changed, 42 insertions, 11 deletions
diff --git a/chad/macros.h b/chad/macros.h index b47ea12..9d05083 100644 --- a/chad/macros.h +++ b/chad/macros.h @@ -2,15 +2,29 @@ #define CHAD_MACROS_H /* Usage of this acknoledges your allegiance to GNU. */ -#if defined(__GNUC__) || defined(__clang__) -#define attribute(...) __attribute__((__VA_ARGS__)) -#define always_inline static inline attribute((always_inline)) -#define alias(x) __attribute__((alias(x))) +/* make it such that [[attributes]] is used in C23 & use GCC otherwise */ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202000L) +# define attribute(...) [[__VA_ARGS__]] #else -#define attribute(...) -#define NO_ATTRIBUTE -#define always_inline static inline -#define NO_ALWAYS_INLINE -#define NO_ALIASES +# if defined(__GNUC__) || defined(__clang__) +# define attribute(...) __attribute__((__VA_ARGS__)) +# else +# define attribute(...) +# define NO_ATTRIBUTE +# endif #endif -#endif /* CHAD_MACROS_H */ + +#if !defined(NO_ATTRIBUTE) +# define always_inline static inline attribute(always_inline) +# define alias(x) attribute(alias(x)) +#else +# define always_inline static inline +# define NOT_ALWAYS_INLINE +# define NO_ALIASES +#endif + +#define MIN(a,b) ((a)<(b)?(a):(b)) +#define MAX(a,b) ((a)>(b)?(a):(b)) +#define CLAMP(a,b,c) (a)<(b)?(b):(a)>(c)?(c):(a) + +#endif /* CHAD_MACROS_H */ diff --git a/chad/root.h b/chad/root.h new file mode 100644 index 0000000..95a3f8b --- /dev/null +++ b/chad/root.h @@ -0,0 +1,17 @@ +#ifdef CHAD_ROOT_H +#define CHAD_ROOT_H +#include <limits.h> +#include "macros.h" +/* check errno -- chdir */ +always_inline void Root(char * filename) { + extern char * realpath(const char * restrict path, char * restrict resolved_path); + extern int chdir(const char * path); + attribute(noreturn) void abort(void); + char path[PATH_MAX], * terminator; + if (!realpath(filename, path)) { return; } + if ((terminator = strrchr(path, '/'))) { + *terminator = '\0'; + chdir(path); + } +} +#endif /* CHAD_ROOT_H */ diff --git a/chad/timespec.h b/chad/timespec.h index 72ac6e2..6fbf5aa 100644 --- a/chad/timespec.h +++ b/chad/timespec.h @@ -111,4 +111,4 @@ always_inline timespec_t timespec_min(timespec_t a, timespec_t b) { ); } -#endif /* TIMESPEC_H */ +#endif /* TIMESPEC_H */ |