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system: high, low: add example which uses the type

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Simon Ruderich 2016-09-15 04:22:23 +02:00
commit 14e80a1abe
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lib/system.nim
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@ -226,6 +226,7 @@ proc high*[T](x: T): T {.magic: "High", noSideEffect.}
## var arr = [1,2,3,4,5,6,7] ## var arr = [1,2,3,4,5,6,7]
## high(arr) #=> 6 ## high(arr) #=> 6
## high(2) #=> 9223372036854775807 ## high(2) #=> 9223372036854775807
## high(int) #=> 9223372036854775807
proc low*[T](x: T): T {.magic: "Low", noSideEffect.} proc low*[T](x: T): T {.magic: "Low", noSideEffect.}
## returns the lowest possible index of an array, a sequence, a string or ## returns the lowest possible index of an array, a sequence, a string or
@ -236,6 +237,7 @@ proc low*[T](x: T): T {.magic: "Low", noSideEffect.}
## var arr = [1,2,3,4,5,6,7] ## var arr = [1,2,3,4,5,6,7]
## low(arr) #=> 0 ## low(arr) #=> 0
## low(2) #=> -9223372036854775808 ## low(2) #=> -9223372036854775808
## low(int) #=> -9223372036854775808
type type
range*{.magic: "Range".}[T] ## Generic type to construct range types. range*{.magic: "Range".}[T] ## Generic type to construct range types.