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rand: move dist functions to top module and PRNG interface; minor cleanup (#14481)

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This commit is contained in:
Subhomoy Haldar
2022-05-22 15:51:52 +05:30
committed by GitHub
parent 64a686f41f
commit 3647fb4def
13 changed files with 290 additions and 134 deletions
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8
vlib/rand/pcg32/pcg32.v
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@ -4,6 +4,7 @@
module pcg32
import rand.seed
import rand.buffer
pub const seed_len = 4
@ -11,11 +12,10 @@ pub const seed_len = 4
// https://github.com/imneme/pcg-c-basic/blob/master/pcg_basic.c, and
// https://github.com/imneme/pcg-c-basic/blob/master/pcg_basic.h
pub struct PCG32RNG {
buffer.PRNGBuffer
mut:
state u64 = u64(0x853c49e6748fea9b) ^ seed.time_seed_64()
inc u64 = u64(0xda3e39cb94b95bdb) ^ seed.time_seed_64()
bytes_left int
buffer u32
state u64 = u64(0x853c49e6748fea9b) ^ seed.time_seed_64()
inc u64 = u64(0xda3e39cb94b95bdb) ^ seed.time_seed_64()
}
// seed seeds the PCG32RNG with 4 `u32` values.