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Update core:math/rand to use context.random_generator and remove rand.Rand

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gingerBill
2024-06-15 15:33:24 +01:00
parent 318d5e4a7e
commit 7ec17ecf98
8 changed files with 197 additions and 387 deletions
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core/math/rand/exp.odin
+4 -4
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@@ -16,7 +16,7 @@ import "core:math"
// https://www.jstatsoft.org/article/view/v005i08 [web page]
//
@(require_results)
exp_float64 :: proc(r: ^Rand = nil) -> f64 {
exp_float64 :: proc() -> f64 {
re :: 7.69711747013104972
@(static, rodata)
@@ -199,16 +199,16 @@ exp_float64 :: proc(r: ^Rand = nil) -> f64 {
}
for {
j := uint32(r)
j := uint32()
i := j & 0xFF
x := f64(j) * f64(we[i])
if j < ke[i] {
return x
}
if i == 0 {
return re - math.ln(float64(r))
return re - math.ln(float64())
}
if fe[i]+f32(float64(r))*(fe[i-1]-fe[i]) < f32(math.exp(-x)) {
if fe[i]+f32(float64())*(fe[i-1]-fe[i]) < f32(math.exp(-x)) {
return x
}
}