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Implementation of high/low for SomeReal (#6570)

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Fabian Keller 2017-10-30 17:21:44 +01:00 • committed by Andreas Rumpf
commit badba83d38
2 changed files with 21 additions and 0 deletions
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3
lib/system.nim
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@ -2076,6 +2076,9 @@ proc max*[T](x, y: T): T =
if y <= x: x else: y if y <= x: x else: y
{.pop.} {.pop.}
proc high*(T: typedesc[SomeReal]): T = Inf
proc low*(T: typedesc[SomeReal]): T = NegInf
proc clamp*[T](x, a, b: T): T = proc clamp*[T](x, a, b: T): T =
## limits the value ``x`` within the interval [a, b] ## limits the value ``x`` within the interval [a, b]
## ##

18
tests/system/tsystem_misc.nim Normal file
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@ -0,0 +1,18 @@
discard """
output:""
"""
# check high/low implementations
doAssert high(int) > low(int)
doAssert high(int8) > low(int8)
doAssert high(int16) > low(int16)
doAssert high(int32) > low(int32)
doAssert high(int64) > low(int64)
# doAssert high(uint) > low(uint) # reconsider depending on issue #6620
doAssert high(uint8) > low(uint8)
doAssert high(uint16) > low(uint16)
doAssert high(uint32) > low(uint32)
# doAssert high(uint64) > low(uint64) # reconsider depending on issue #6620
doAssert high(float) > low(float)
doAssert high(float32) > low(float32)
doAssert high(float64) > low(float64)