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low/high for float ranges (#11177)

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Oscar Nihlgård 2019-05-06 21:19:40 +02:00 • committed by Andreas Rumpf
commit 4c6fc173b7
4 changed files with 27 additions and 7 deletions
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8
lib/system.nim
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@ -303,7 +303,7 @@ else:
type sink*{.magic: "BuiltinType".}[T]
type lent*{.magic: "BuiltinType".}[T]
proc high*[T: Ordinal](x: T): T {.magic: "High", noSideEffect.}
proc high*[T: Ordinal|enum|range](x: T): T {.magic: "High", noSideEffect.}
## Returns the highest possible value of an ordinal value `x`.
##
## As a special semantic rule, `x` may also be a type identifier.
@ -314,7 +314,7 @@ proc high*[T: Ordinal](x: T): T {.magic: "High", noSideEffect.}
## .. code-block:: Nim
## high(2) # => 9223372036854775807
proc high*[T: Ordinal|enum](x: typeDesc[T]): T {.magic: "High", noSideEffect.}
proc high*[T: Ordinal|enum|range](x: typeDesc[T]): T {.magic: "High", noSideEffect.}
## Returns the highest possible value of an ordinal or enum type.
##
## ``high(int)`` is Nim's way of writing `INT_MAX`:idx: or `MAX_INT`:idx:.
@ -375,7 +375,7 @@ proc high*(x: string): int {.magic: "High", noSideEffect.}
## var str = "Hello world!"
## high(str) # => 11
proc low*[T](x: T): T {.magic: "Low", noSideEffect.}
proc low*[T: Ordinal|enum|range](x: T): T {.magic: "Low", noSideEffect.}
## Returns the lowest possible value of an ordinal value `x`. As a special
## semantic rule, `x` may also be a type identifier.
##
@ -385,7 +385,7 @@ proc low*[T](x: T): T {.magic: "Low", noSideEffect.}
## .. code-block:: Nim
## low(2) # => -9223372036854775808
proc low*[T: Ordinal|enum](x: typeDesc[T]): T {.magic: "Low", noSideEffect.}
proc low*[T: Ordinal|enum|range](x: typeDesc[T]): T {.magic: "Low", noSideEffect.}
## Returns the lowest possible value of an ordinal or enum type.
##
## ``low(int)`` is Nim's way of writing `INT_MIN`:idx: or `MIN_INT`:idx:.