diff options
Diffstat (limited to 'common.h')
| -rw-r--r-- | common.h | 20 |
1 files changed, 18 insertions, 2 deletions
@@ -18,9 +18,27 @@ "This is free software: you are free to change and redistribute it.\n" \ "There is NO WARRANTY, to the extent permitted by law.\n\n" +#ifndef MIN +#define MIN(x, y) (((x) < (y)) ? (x) : (y)) +#endif +#ifndef MAX +#define MAX(x, y) (((x) > (y)) ? (x) : (y)) +#endif + +#define MAX_FROM_BITS(n) (((1U << (n)) - 1)) + /* FPRINTF() intentionally silences cert-err33-c clang-tidy warnings */ #define FPRINTF(f, ...) (void)fprintf(f, __VA_ARGS__) +#define ARRAY_SIZE(a) ((int)(sizeof(a) / sizeof((a)[0]))) + +#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) +#define DIV_ROUND_CLOSEST(n, d) (((n) + (d) / 2) / (d)) +#define ROUND_DOWN(x, y) ((x) & ~((y) - 1)) +#define ROUND_UP(x, y) (((x) + (y) - 1) & ~((y) - 1)) + +#define UINT16_STRLEN (sizeof("65535")) + /* * Starting from glibc 2.40.9000 and commit 25a5eb4010df ("string: strerror, * strsignal cannot use buffer after dlmopen (bug 32026)"), strerror() needs @@ -53,8 +71,6 @@ static inline const char *strerror_(int errnum) #define strerror(x) @ "Don't call strerror() directly, use strerror_() instead" -#define ARRAY_SIZE(a) ((int)(sizeof(a) / sizeof((a)[0]))) - #ifndef __bswap_constant_16 #define __bswap_constant_16(x) \ ((uint16_t) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))) |