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| author | Bruce Hill <bruce@bruce-hill.com> | 2025-08-23 19:28:08 -0400 |
|---|---|---|
| committer | Bruce Hill <bruce@bruce-hill.com> | 2025-08-23 19:28:08 -0400 |
| commit | fcda36561d668f43bac91ea31cd55cbbd605d330 (patch) | |
| tree | eb74c0b17df584af0fd8154422ad924e04c96cc2 /src/stdlib/siphash-internals.h | |
| parent | 414b0c7472c87c5a013029aefef49e2dbc41e700 (diff) | |
Autoformat everything with clang-format
Diffstat (limited to 'src/stdlib/siphash-internals.h')
| -rw-r--r-- | src/stdlib/siphash-internals.h | 73 |
1 files changed, 37 insertions, 36 deletions
diff --git a/src/stdlib/siphash-internals.h b/src/stdlib/siphash-internals.h index b359cea7..c8ec1142 100644 --- a/src/stdlib/siphash-internals.h +++ b/src/stdlib/siphash-internals.h @@ -51,24 +51,25 @@ struct siphash { uint64_t v1; uint64_t v2; uint64_t v3; - uint64_t b; + uint64_t b; }; typedef struct siphash siphash; -#define ROTATE(x, b) (uint64_t)( ((x) << (b)) | ( (x) >> (64 - (b))) ) +#define ROTATE(x, b) (uint64_t)(((x) << (b)) | ((x) >> (64 - (b)))) -#define HALF_ROUND(a,b,c,d,s,t) \ - a += b; c += d; \ - b = ROTATE(b, s) ^ a; \ - d = ROTATE(d, t) ^ c; \ +#define HALF_ROUND(a, b, c, d, s, t) \ + a += b; \ + c += d; \ + b = ROTATE(b, s) ^ a; \ + d = ROTATE(d, t) ^ c; \ a = ROTATE(a, 32); -#define DOUBLE_ROUND(v0,v1,v2,v3) \ - HALF_ROUND(v0,v1,v2,v3,13,16); \ - HALF_ROUND(v2,v1,v0,v3,17,21); \ - HALF_ROUND(v0,v1,v2,v3,13,16); \ - HALF_ROUND(v2,v1,v0,v3,17,21); +#define DOUBLE_ROUND(v0, v1, v2, v3) \ + HALF_ROUND(v0, v1, v2, v3, 13, 16); \ + HALF_ROUND(v2, v1, v0, v3, 17, 21); \ + HALF_ROUND(v0, v1, v2, v3, 13, 16); \ + HALF_ROUND(v2, v1, v0, v3, 17, 21); -MACROLIKE void siphashinit (siphash *sh, size_t src_sz) { +MACROLIKE void siphashinit(siphash *sh, size_t src_sz) { const uint64_t k0 = TOMO_HASH_KEY[0]; const uint64_t k1 = TOMO_HASH_KEY[1]; sh->b = (uint64_t)src_sz << 56; @@ -77,20 +78,20 @@ MACROLIKE void siphashinit (siphash *sh, size_t src_sz) { sh->v2 = k0 ^ 0x6c7967656e657261ULL; sh->v3 = k1 ^ 0x7465646279746573ULL; } -MACROLIKE void siphashadd64bits (siphash *sh, const uint64_t in) { +MACROLIKE void siphashadd64bits(siphash *sh, const uint64_t in) { const uint64_t mi = in; sh->v3 ^= mi; - DOUBLE_ROUND(sh->v0,sh->v1,sh->v2,sh->v3); + DOUBLE_ROUND(sh->v0, sh->v1, sh->v2, sh->v3); sh->v0 ^= mi; } -MACROLIKE uint64_t siphashfinish_last_part (siphash *sh, uint64_t t) { +MACROLIKE uint64_t siphashfinish_last_part(siphash *sh, uint64_t t) { sh->b |= t; sh->v3 ^= sh->b; - DOUBLE_ROUND(sh->v0,sh->v1,sh->v2,sh->v3); + DOUBLE_ROUND(sh->v0, sh->v1, sh->v2, sh->v3); sh->v0 ^= sh->b; sh->v2 ^= 0xff; - DOUBLE_ROUND(sh->v0,sh->v1,sh->v2,sh->v3); - DOUBLE_ROUND(sh->v0,sh->v1,sh->v2,sh->v3); + DOUBLE_ROUND(sh->v0, sh->v1, sh->v2, sh->v3); + DOUBLE_ROUND(sh->v0, sh->v1, sh->v2, sh->v3); return (sh->v0 ^ sh->v1) ^ (sh->v2 ^ sh->v3); } /* This union helps us avoid doing weird things with pointers that can cause old @@ -99,26 +100,26 @@ MACROLIKE uint64_t siphashfinish_last_part (siphash *sh, uint64_t t) { union SipHash64_union { uint64_t u64; uint32_t u32; - uint8_t u8[8]; + uint8_t u8[8]; }; -MACROLIKE uint64_t siphashfinish (siphash *sh, const uint8_t *src, size_t src_sz) { - union SipHash64_union t = { 0 }; +MACROLIKE uint64_t siphashfinish(siphash *sh, const uint8_t *src, size_t src_sz) { + union SipHash64_union t = {0}; switch (src_sz) { - /* Falls through */ - case 7: t.u8[6] = src[6]; - /* Falls through */ - case 6: t.u8[5] = src[5]; - /* Falls through */ - case 5: t.u8[4] = src[4]; - /* Falls through */ - case 4: t.u8[3] = src[3]; - /* Falls through */ - case 3: t.u8[2] = src[2]; - /* Falls through */ - case 2: t.u8[1] = src[1]; - /* Falls through */ - case 1: t.u8[0] = src[0]; - default: break; + /* Falls through */ + case 7: t.u8[6] = src[6]; + /* Falls through */ + case 6: t.u8[5] = src[5]; + /* Falls through */ + case 5: t.u8[4] = src[4]; + /* Falls through */ + case 4: t.u8[3] = src[3]; + /* Falls through */ + case 3: t.u8[2] = src[2]; + /* Falls through */ + case 2: t.u8[1] = src[1]; + /* Falls through */ + case 1: t.u8[0] = src[0]; + default: break; } return siphashfinish_last_part(sh, t.u64); } |
