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rand: move constants from rand.util to a new module rand.constants (#8408)

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This commit is contained in:
Subhomoy Haldar
2021-01-29 15:27:30 +05:30
committed by GitHub
parent d012f2713b
commit c5a18812e2
7 changed files with 36 additions and 33 deletions
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10
vlib/rand/sys/system_rng.c.v
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@ -5,7 +5,7 @@ module sys
import math.bits
import rand.seed
import rand.util
import rand.constants
// Implementation note:
// ====================
@ -176,13 +176,13 @@ pub fn (r SysRNG) i64() i64 {
// r.int31() returns a pseudorandom 31-bit int which is non-negative
[inline]
pub fn (r SysRNG) int31() int {
return int(r.u32() & util.u31_mask) // Set the 32nd bit to 0.
return int(r.u32() & constants.u31_mask) // Set the 32nd bit to 0.
}
// r.int63() returns a pseudorandom 63-bit int which is non-negative
[inline]
pub fn (r SysRNG) int63() i64 {
return i64(r.u64() & util.u63_mask) // Set the 64th bit to 0.
return i64(r.u64() & constants.u63_mask) // Set the 64th bit to 0.
}
// r.intn(max) returns a pseudorandom int that lies in [0, max)
@ -229,13 +229,13 @@ pub fn (r SysRNG) i64_in_range(min i64, max i64) i64 {
// r.f32() returns a pseudorandom f32 value between 0.0 (inclusive) and 1.0 (exclusive) i.e [0, 1)
[inline]
pub fn (r SysRNG) f32() f32 {
return f32(r.u32()) / util.max_u32_as_f32
return f32(r.u32()) / constants.max_u32_as_f32
}
// r.f64() returns a pseudorandom f64 value between 0.0 (inclusive) and 1.0 (exclusive) i.e [0, 1)
[inline]
pub fn (r SysRNG) f64() f64 {
return f64(r.u64()) / util.max_u64_as_f64
return f64(r.u64()) / constants.max_u64_as_f64
}
// r.f32n() returns a pseudorandom f32 value in [0, max)