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fixes #12264 [backport] (#12302)

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Andreas Rumpf 2019-09-30 21:44:24 +02:00 • committed by GitHub
commit dd082b6ec8
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3 changed files with 17 additions and 10 deletions
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9
compiler/int128.nim
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@ -73,6 +73,15 @@ proc toInt64*(arg: Int128): int64 =
cast[int64](bitconcat(arg.udata[1], arg.udata[0]))
proc toInt64Checked*(arg: Int128; onError: int64): int64 =
if isNegative(arg):
if arg.sdata(3) != -1 or arg.sdata(2) != -1:
return onError
else:
if arg.sdata(3) != 0 or arg.sdata(2) != 0:
return onError
return cast[int64](bitconcat(arg.udata[1], arg.udata[0]))
proc toInt32*(arg: Int128): int32 =
if isNegative(arg):
assert(arg.sdata(3) == -1, "out of range")