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Add core:math/rand.choice

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This commit is contained in:
Jeroen van Rijn
2022-10-23 04:18:58 +02:00
parent 03c834e410
commit a51943e27f
1 changed files with 9 additions and 0 deletions
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9
core/math/rand/rand.odin
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@@ -182,3 +182,12 @@ shuffle :: proc(array: $T/[]$E, r: ^Rand = nil) {
array[i], array[j] = array[j], array[i]
}
}
// Returns a random element from the given slice
choice :: proc(array: $T/[]$E, r: ^Rand = nil) -> (res: E) {
n := i64(len(array))
if n < 1 {
return E{}
}
return array[int63_max(n, r)]
}