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Fix MutRange[T] problems. (#26)

This commit is contained in:
Eugene Kabanov 2018-08-27 17:37:39 +03:00 committed by Yuriy Glukhov
parent 49f32c604b
commit d49a57f943
1 changed files with 8 additions and 9 deletions
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17
ranges/typedranges.nim
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@ -211,24 +211,23 @@ template advanceImpl(a, b: untyped): bool =
proc tryAdvance*[T](x: var Range[T], idx: int): bool =
## Move internal start offset of range ``x`` by ``idx`` elements forward.
##
##
## Returns ``true`` if operation got completed successfully, or
## ``false`` if you are trying to overrun range ``x``.
## ``false`` if you are trying to overrun range ``x``.
result = x.advanceImpl(idx)
proc tryAdvance*[T](x: var MutRange[T], idx: int): bool =
proc tryAdvance*[T](x: var MutRange[T], idx: int): bool {.inline.} =
## Move internal start offset of range ``x`` by ``idx`` elements forward.
##
##
## Returns ``true`` if operation got completed successfully, or
## ``false`` if you are trying to overrun range ``x``.
result = x.advanceImpl(idx)
## ``false`` if you are trying to overrun range ``x``.
result = tryAdvance(Range[T](x), idx)
proc advance*[T](x: var Range[T], idx: int) =
## Move internal start offset of range ``x`` by ``idx`` elements forward.
let res = x.advanceImpl(idx)
if not res: raise newException(IndexError, "Advance Error")
proc advance*[T](x: var MutRange[T], idx: int) =
proc advance*[T](x: var MutRange[T], idx: int) {.inline.} =
## Move internal start offset of range ``x`` by ``idx`` elements forward.
let res = x.advanceImpl(idx)
if not res: raise newException(IndexError, "Advance Error")
advance(Range[T](x), idx)