diff options
| -rw-r--r-- | lib/pure/random.nim | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/pure/random.nim b/lib/pure/random.nim index 832d54e3d..7676ce6cf 100644 --- a/lib/pure/random.nim +++ b/lib/pure/random.nim @@ -377,10 +377,12 @@ proc rand*[T: Ordinal](t: typedesc[T]): T = assert rand(range[1..16]) in 1..16 # pending csources >= 1.4.0 or fixing https://github.com/timotheecour/Nim/issues/251#issuecomment-831599772, # use `runnableExamples("-r:off")` instead of `if false` - when T is range or T is enum or T is bool: + when T is range or T is enum: result = rand(state, low(T)..high(T)) + elif T is bool: + result = state.next shr 63 == 1 # sign test, works on js else: - result = cast[T](state.next) + result = cast[T](state.next shr (64 - sizeof(T)*8)) proc sample*[T](r: var Rand; s: set[T]): T = ## Returns a random element from the set `s` using the given state. |