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| author | Yuriy Glukhov <yglukhov@users.noreply.github.com> | 2018-01-18 20:47:58 +0300 |
|---|---|---|
| committer | Andreas Rumpf <rumpf_a@web.de> | 2018-01-18 18:47:58 +0100 |
| commit | 1b3f640188b06c6b6c1ead5ab4d28345a93ace73 (patch) | |
| tree | f0333efc489ab17963aa9d1e598f88513acea3f5 | |
| parent | 33b0e739625d9894b2fbf1e019b69bae39e3db17 (diff) | |
| download | Nim-1b3f640188b06c6b6c1ead5ab4d28345a93ace73.tar.gz | |
Fixed crash in rand (#7103)
| -rw-r--r-- | lib/pure/random.nim | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/pure/random.nim b/lib/pure/random.nim index de419b9fb..97ad12b99 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)): @@ -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() |