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Merge pull request #3214 from rbehrends/fix-exponentiation

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Fix exponentiation operation to avoid overflow.
This commit is contained in:
Dominik Picheta 2015-08-14 17:13:58 +01:00
commit 769e0e3e4b
1 changed files with 3 additions and 1 deletions
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4
lib/pure/math.nim
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@ -427,10 +427,12 @@ proc `^`*[T](x, y: T): T =
var (x, y) = (x, y)
result = 1
while y != 0:
while true:
if (y and 1) != 0:
result *= x
y = y shr 1
if y == 0:
break
x *= x
proc gcd*[T](x, y: T): T =