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random: works for slices and enums, fixes #7698 (#10998)

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Miran
2019-04-11 08:38:18 +02:00
committed by Andreas Rumpf
parent 2846156e13
commit 9f94199d0c
1 changed files with 3 additions and 3 deletions
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6
lib/pure/random.nim
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@@ -318,7 +318,7 @@ proc rand*(max: float): float {.benign.} =
## f = 8.717181376738381e-07
rand(state, max)
proc rand*[T](r: var Rand; x: HSlice[T, T]): T =
proc rand*[T: Ordinal](r: var Rand; x: HSlice[T, T]): T =
## For a slice `a..b`, returns a value in the range `a..b` using the given
## state.
##
@@ -333,9 +333,9 @@ proc rand*[T](r: var Rand; x: HSlice[T, T]): T =
doAssert r.rand(1..6) == 4
doAssert r.rand(1..6) == 4
doAssert r.rand(1..6) == 6
result = T(rand(r, x.b - x.a)) + x.a
result = T(rand(r, int(x.b) - int(x.a)) + int(x.a))
proc rand*[T](x: HSlice[T, T]): T =
proc rand*[T: Ordinal](x: HSlice[T, T]): T =
## For a slice `a..b`, returns a value in the range `a..b`.
##
## If `randomize<#randomize>`_ has not been called, the sequence of random