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common/rand: Remove exponential distribution functions (#1979)

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We were computing these functions incorrectly.
I'm not sure what distribution these numbers are, but it isn't the
normal exponential distribution. (We're making the probability of
getting a number of a particular bitlength equal, but the number in
that bitlength thats gets chosen is uniformly chosen)

We weren't using these functions anywhere in our codebase, and they
had a nomenclature error. (There aren't exponentially distributed
integers, instead they would be geometrically distributed)
This commit is contained in:
Dev Ojha
2018-07-16 00:19:08 -07:00
committed by Anton Kaliaev
parent a3df06d081
commit 71859f8f3b
3 changed files with 5 additions and 50 deletions
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3
libs/common/random_test.go
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@ -73,9 +73,6 @@ func testThemAll() string {
fmt.Fprintf(out, "randInt64: %d\n", RandInt64())
fmt.Fprintf(out, "randUint32: %d\n", RandUint32())
fmt.Fprintf(out, "randUint64: %d\n", RandUint64())
fmt.Fprintf(out, "randUint16Exp: %d\n", RandUint16Exp())
fmt.Fprintf(out, "randUint32Exp: %d\n", RandUint32Exp())
fmt.Fprintf(out, "randUint64Exp: %d\n", RandUint64Exp())
return out.String()
}