diff options
Diffstat (limited to 'lib/pure/random.nim')
| -rw-r--r-- | lib/pure/random.nim | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/pure/random.nim b/lib/pure/random.nim index de419b9fb..01ea9c845 100644 --- a/lib/pure/random.nim +++ b/lib/pure/random.nim @@ -115,6 +115,7 @@ proc rand*(r: var Rand; max: int): int {.benign.} = ## random number is always the same, unless `randomize` is called ## which initializes the random number generator with a "random" ## number, i.e. a tickcount. + if max == 0: return while true: let x = next(r) if x <= randMax - (randMax mod ui(max)): @@ -190,8 +191,8 @@ when not defined(nimscript): proc randomize*() {.benign.} = ## Initializes the random number generator with a "random" ## number, i.e. a tickcount. Note: Does not work for NimScript. - let time = int64(times.epochTime() * 1_000_000_000) - randomize(time) + let now = times.getTime() + randomize(convert(Seconds, Nanoseconds, now.toUnix) + now.nanosecond) {.pop.} @@ -213,4 +214,8 @@ when isMainModule: shuffle(a) doAssert a[0] == 1 doAssert a[1] == 0 + + doAssert rand(0) == 0 + doAssert rand("a") == 'a' + main() |