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fixes #2865

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This commit is contained in:
Andreas Rumpf 2016-08-26 13:51:58 +02:00
commit 4d4a993e7f
1 changed files with 8 additions and 1 deletions
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9
compiler/types.nim
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@ -653,7 +653,14 @@ proc lengthOrd(t: PType): BiggestInt =
case t.kind case t.kind
of tyInt64, tyInt32, tyInt: result = lastOrd(t) of tyInt64, tyInt32, tyInt: result = lastOrd(t)
of tyDistinct, tyConst, tyMutable: result = lengthOrd(t.sons[0]) of tyDistinct, tyConst, tyMutable: result = lengthOrd(t.sons[0])
else: result = lastOrd(t) - firstOrd(t) + 1 else:
let last = lastOrd t
let first = firstOrd t
# XXX use a better overflow check here:
if last == high(BiggestInt) and first <= 0:
result = last
else:
result = lastOrd(t) - firstOrd(t) + 1
# -------------- type equality ----------------------------------------------- # -------------- type equality -----------------------------------------------