37 lines
687 B
V
37 lines
687 B
V
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import rand
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import time
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fn show_u64s(a []u64){
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mut res := []string
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for x in a {
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res << x.str()
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}
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print('[')
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print(res.join(', '))
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println(']')
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}
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fn gen_randoms(seed i64, bound int) []u64 {
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mut randoms := [u64(0)].repeat(20)
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mut rnd := rand.new_splitmix64( u64(seed) )
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for i in 0..20 {
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randoms[i] = rnd.bounded_next(u64(bound))
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}
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return randoms
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}
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fn test_splitmix64_reproducibility() {
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t := time.ticks()
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println('t: $t')
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randoms1 := gen_randoms(t, 1000)
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randoms2 := gen_randoms(t, 1000)
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assert randoms1.len == randoms2.len
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show_u64s( randoms1 )
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show_u64s( randoms2 )
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len := randoms1.len
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for i in 0..len {
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assert randoms1[i] == randoms2[i]
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}
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}
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