diff options
| -rw-r--r-- | lib/pure/collections/deques.nim | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/pure/collections/deques.nim b/lib/pure/collections/deques.nim index e8342e208..5243b96a6 100644 --- a/lib/pure/collections/deques.nim +++ b/lib/pure/collections/deques.nim @@ -88,11 +88,23 @@ proc `[]`*[T](deq: var Deque[T], i: Natural): var T {.inline.} = xBoundsCheck(deq, i) return deq.data[(deq.head + i) and deq.mask] -proc `[]=`* [T] (deq: var Deque[T], i: Natural, val : T) {.inline.} = +proc `[]=`*[T](deq: var Deque[T], i: Natural, val : T) {.inline.} = ## Change the i-th element of `deq`. xBoundsCheck(deq, i) deq.data[(deq.head + i) and deq.mask] = val +proc `[]`*[T](deq: var Deque[T], i: BackwardsIndex): var T {.inline.} = + ## Access the backwards indexed i-th element. + return deq[deq.len - int(i)] + +proc `[]`*[T](deq: Deque[T], i: BackwardsIndex): T {.inline.} = + ## Access the backwards indexed i-th element. + return deq[deq.len - int(i)] + +proc `[]=`*[T](deq: var Deque[T], i: BackwardsIndex, x: T) {.inline.} = + ## Change the backwards indexed i-th element. + deq[deq.len - int(i)] = x + iterator items*[T](deq: Deque[T]): T = ## Yield every element of `deq`. var i = deq.head |