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Simon Hafner 2015-03-26 03:40:39 +05:00
commit 6dfb13b2b8
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lib/pure/collections/tables.nim
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@ -985,16 +985,19 @@ proc sort*[A](t: CountTableRef[A]) =
t[].sort t[].sort
proc merge*[A](s: var CountTable[A], t: CountTable[A]) = proc merge*[A](s: var CountTable[A], t: CountTable[A]) =
## merges the second table into the first one
for key, value in t: for key, value in t:
s.inc(key, value) s.inc(key, value)
proc merge*[A](s, t: CountTable[A]): CountTable[A] = proc merge*[A](s, t: CountTable[A]): CountTable[A] =
## merges the two tables into a new one
result = initCountTable[A](nextPowerOfTwo(max(s.len, t.len))) result = initCountTable[A](nextPowerOfTwo(max(s.len, t.len)))
for table in @[s, t]: for table in @[s, t]:
for key, value in table: for key, value in table:
result.inc(key, value) result.inc(key, value)
proc merge*[A](s, t: CountTableRef[A]) = proc merge*[A](s, t: CountTableRef[A]) =
## merges the second table into the first one
s[].merge(t[]) s[].merge(t[])
when isMainModule: when isMainModule: