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builtin: unsafe vlib pointer indexing (#5836)

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This commit is contained in:
Nick Treleaven
2020-07-15 20:56:50 +01:00
committed by GitHub
parent cc7c8009a1
commit f5e6a83a05
7 changed files with 326 additions and 189 deletions
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14
vlib/hash/wyhash/wyhash.v
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@@ -48,7 +48,7 @@ fn wyhash64(key byteptr, len, seed_ u64) u64 {
if len == 0 {
return 0
}
mut p := &key[0]
mut p := key
mut seed := seed_
mut i := len & 63
unsafe {
@@ -119,15 +119,21 @@ pub fn wymum(a, b u64) u64 {
[inline]
fn wyr3(p byteptr, k u64) u64 {
return (u64(p[0])<<16) | (u64(p[k>>1])<<8) | u64(p[k - 1])
unsafe {
return (u64(p[0])<<16) | (u64(p[k>>1])<<8) | u64(p[k - 1])
}
}
[inline]
fn wyr4(p byteptr) u64 {
return u32(p[0]) | (u32(p[1])<<u32(8)) | (u32(p[2])<<u32(16)) | (u32(p[3])<<u32(24))
unsafe {
return u32(p[0]) | (u32(p[1])<<u32(8)) | (u32(p[2])<<u32(16)) | (u32(p[3])<<u32(24))
}
}
[inline]
fn wyr8(p byteptr) u64 {
return u64(p[0]) | (u64(p[1])<<8) | (u64(p[2])<<16) | (u64(p[3])<<24) | (u64(p[4])<<32) | (u64(p[5])<<40) | (u64(p[6])<<48) | (u64(p[7])<<56)
unsafe {
return u64(p[0]) | (u64(p[1])<<8) | (u64(p[2])<<16) | (u64(p[3])<<24) | (u64(p[4])<<32) | (u64(p[5])<<40) | (u64(p[6])<<48) | (u64(p[7])<<56)
}
}