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| author | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-02-24 00:44:18 -0700 |
|---|---|---|
| committer | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-02-26 16:10:14 -0700 |
| commit | f78a2bdb6942280053ae99a4c7121d90fb847eb8 (patch) | |
| tree | ea7303b8f979e37ddbcddae9491ca847968bba61 | |
| parent | 4a4998bc256f079f7a1a6393d3944c7458c29574 (diff) | |
libmisc: macro.h: Add LM_ROUND_DOWN
| -rw-r--r-- | libmisc/include/libmisc/macro.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libmisc/include/libmisc/macro.h b/libmisc/include/libmisc/macro.h index fe61410..149c4bb 100644 --- a/libmisc/include/libmisc/macro.h +++ b/libmisc/include/libmisc/macro.h @@ -19,6 +19,7 @@ #define LM_ARRAY_LEN(ary) (sizeof(ary)/sizeof((ary)[0])) #define LM_CEILDIV(n, d) ( ((n)+(d)-1) / (d) ) #define LM_ROUND_UP(n, d) ( LM_CEILDIV(n, d) * (d) ) /** Return `n` rounded up to the nearest multiple of `d` */ +#define LM_ROUND_DOWN(n, d) ( ((n)/(d)) * (d) ) /** Return `n` rounded down to the nearest multiple of `d` */ #define LM_NEXT_POWER_OF_2(x) ( (x) ? 1ULL<<((sizeof(unsigned long long)*8)-__builtin_clzll(x)) : 1) /* strings */ |