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remove unnecessary casts everywhere

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This commit is contained in:
Alexander Medvednikov
2019-12-07 15:51:00 +03:00
parent d7ccbba2c9
commit f51784ee01
8 changed files with 38 additions and 33 deletions
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16
vlib/rand/splitmix64.v
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@ -8,7 +8,7 @@ mut:
}
/**
* new_splitmix64 - a Splitmix64 PRNG generator
* @param seed the initial seed of the PRNG.
* @param seed the initial seed of the PRNG.
* @return a new Splitmix64 PRNG instance
*/
pub fn new_splitmix64(seed u64) Splitmix64 {
@ -19,11 +19,11 @@ pub fn new_splitmix64(seed u64) Splitmix64 {
* @return the generated pseudo random number
*/
[inline] pub fn (rng mut Splitmix64) next() u64 {
rng.state += u64(0x9e3779b97f4a7c15)
rng.state += (0x9e3779b97f4a7c15)
mut z := rng.state
z = (z ^ u64((z >> u64(30)))) * u64(0xbf58476d1ce4e5b9)
z = (z ^ u64((z >> u64(27)))) * u64(0x94d049bb133111eb)
return z ^ u64(z >> u64(31))
z = (z ^ ((z >> u64(30)))) * (0xbf58476d1ce4e5b9)
z = (z ^ ((z >> u64(27)))) * (0x94d049bb133111eb)
return z ^ (z >> (31))
}
/**
* Splitmix64.bounded_next - Get the next random number < bound
@ -31,12 +31,12 @@ pub fn new_splitmix64(seed u64) Splitmix64 {
* @return the generated pseudo random number
*/
[inline] pub fn (rng mut Splitmix64) bounded_next(bound u64) u64 {
threshold := u64( -bound % bound )
threshold := -bound % bound
for {
r := rng.next()
if r >= threshold {
return u64( r % bound )
}
return r % bound
}
}
return u64(0)
}