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fixes #6989

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This commit is contained in:
Andreas Rumpf 2018-01-27 07:59:40 +01:00
commit 68dfd1729e
3 changed files with 116 additions and 7 deletions
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12
lib/system.nim
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@ -318,7 +318,7 @@ type
Slice*[T] = HSlice[T, T] ## an alias for ``HSlice[T, T]``
proc `..`*[T, U](a: T, b: U): HSlice[T, U] {.noSideEffect, inline, magic: "DotDot".} =
## `slice`:idx: operator that constructs an interval ``[a, b]``, both `a`
## binary `slice`:idx: operator that constructs an interval ``[a, b]``, both `a`
## and `b` are inclusive. Slices can also be used in the set constructor
## and in ordinal case statements, but then they are special-cased by the
## compiler.
@ -326,7 +326,7 @@ proc `..`*[T, U](a: T, b: U): HSlice[T, U] {.noSideEffect, inline, magic: "DotDo
result.b = b
proc `..`*[T](b: T): HSlice[int, T] {.noSideEffect, inline, magic: "DotDot".} =
## `slice`:idx: operator that constructs an interval ``[default(int), b]``
## unary `slice`:idx: operator that constructs an interval ``[default(int), b]``
result.b = b
when not defined(niminheritable):
@ -677,12 +677,12 @@ proc `<`*[T](x: Ordinal[T]): T {.magic: "UnaryLt", noSideEffect, deprecated.}
## write ``0 ..< 10`` instead of ``0 .. < 10`` (look at the spacing).
## For ``<x`` write ``pred(x)``.
proc succ*[T](x: Ordinal[T], y = 1): T {.magic: "Succ", noSideEffect.}
proc succ*[T: Ordinal](x: T, y = 1): T {.magic: "Succ", noSideEffect.}
## returns the ``y``-th successor of the value ``x``. ``T`` has to be
## an ordinal type. If such a value does not exist, ``EOutOfRange`` is raised
## or a compile time error occurs.
proc pred*[T](x: Ordinal[T], y = 1): T {.magic: "Pred", noSideEffect.}
proc pred*[T: Ordinal](x: T, y = 1): T {.magic: "Pred", noSideEffect.}
## returns the ``y``-th predecessor of the value ``x``. ``T`` has to be
## an ordinal type. If such a value does not exist, ``EOutOfRange`` is raised
## or a compile time error occurs.
@ -3505,8 +3505,8 @@ template `..^`*(a, b: untyped): untyped =
a .. ^b
template `..<`*(a, b: untyped): untyped =
## a shortcut for 'a..pred(b)'.
a .. pred(b)
## a shortcut for 'a .. (when b is BackwardsIndex: succ(b) else: pred(b))'.
a .. (when b is BackwardsIndex: succ(b) else: pred(b))
when defined(nimNewRoof):
iterator `..<`*[T](a, b: T): T =