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deprecate high(value) and low(value) (#15283)

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Miran
2020-09-09 12:43:04 +02:00
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parent f3552b86c1
commit 7d4f0df107
1 changed files with 8 additions and 6 deletions
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14
lib/system.nim
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@@ -288,13 +288,14 @@ else:
type sink*[T]{.magic: "BuiltinType".}
type lent*[T]{.magic: "BuiltinType".}
proc high*[T: Ordinal|enum|range](x: T): T {.magic: "High", noSideEffect.}
proc high*[T: Ordinal|enum|range](x: T): T {.magic: "High", noSideEffect,
deprecated: "Deprecated since v1.4; there should not be `high(value)`. Use `high(type)`.".}
## Returns the highest possible value of an ordinal value `x`.
##
## As a special semantic rule, `x` may also be a type identifier.
##
## See also:
## * `low(T) <#low,T>`_
## **This proc is deprecated**, use this one instead:
## * `high(typedesc) <#high,typedesc[T]>`_
##
## .. code-block:: Nim
## high(2) # => 9223372036854775807
@@ -360,12 +361,13 @@ proc high*(x: string): int {.magic: "High", noSideEffect.}
## var str = "Hello world!"
## high(str) # => 11
proc low*[T: Ordinal|enum|range](x: T): T {.magic: "Low", noSideEffect.}
proc low*[T: Ordinal|enum|range](x: T): T {.magic: "Low", noSideEffect,
deprecated: "Deprecated since v1.4; there should not be `low(value)`. Use `low(type)`.".}
## Returns the lowest possible value of an ordinal value `x`. As a special
## semantic rule, `x` may also be a type identifier.
##
## See also:
## * `high(T) <#high,T>`_
## **This proc is deprecated**, use this one instead:
## * `low(typedesc) <#low,typedesc[T]>`_
##
## .. code-block:: Nim
## low(2) # => -9223372036854775808