mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2026-04-22 15:25:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix #17017 (math edge cases) (#17588)

Browse Source 
* Fix #17017

Add more test cases

* USe signbit in example
This commit is contained in:
konsumlamm
2021-04-01 12:47:56 +02:00
committed by GitHub
parent e25a487ed6
commit f0587e02e2
2 changed files with 51 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
tests/stdlib/tmath.nim
View File

@@ -29,10 +29,6 @@ template main() =
doAssert erf(6.0) > erf(5.0)
doAssert erfc(6.0) < erfc(5.0)
when not defined(js) and not defined(windows): # xxx pending bug #17017
doAssert gamma(-1.0).isNaN
block: # sgn() tests
doAssert sgn(1'i8) == 1
doAssert sgn(1'i16) == 1
@@ -46,6 +42,7 @@ template main() =
doAssert sgn(123.9834'f64) == 1
doAssert sgn(0'i32) == 0
doAssert sgn(0'f32) == 0
doAssert sgn(-0.0'f64) == 0
doAssert sgn(NegInf) == -1
doAssert sgn(Inf) == 1
doAssert sgn(NaN) == 0
@@ -358,7 +355,7 @@ template main() =
doAssert almostEqual(prod([1.5, 3.4]), 5.1)
let x: seq[float] = @[]
doAssert prod(x) == 1.0
block: # clamp range
doAssert clamp(10, 1..5) == 5
doAssert clamp(3, 1..5) == 3
@@ -370,8 +367,42 @@ template main() =
doAssert a1.clamp(a2..a4) == a2
doAssert clamp((3, 0), (1, 0) .. (2, 9)) == (2, 9)
when not defined(windows): # xxx pending bug #17017
doAssert sqrt(-1.0).isNaN
block: # edge cases
doAssert sqrt(-4.0).isNaN
doAssert ln(0.0) == -Inf
doAssert ln(-0.0) == -Inf
doAssert ln(-12.0).isNaN
doAssert log10(0.0) == -Inf
doAssert log10(-0.0) == -Inf
doAssert log10(-12.0).isNaN
doAssert log2(0.0) == -Inf
doAssert log2(-0.0) == -Inf
doAssert log2(-12.0).isNaN
when nimvm: discard
else:
doAssert frexp(0.0) == (0.0, 0)
doAssert frexp(-0.0) == (-0.0, 0)
doAssert classify(frexp(-0.0)[0]) == fcNegZero
when not defined(js):
doAssert gamma(0.0) == Inf
doAssert gamma(-0.0) == -Inf
doAssert gamma(-1.0).isNaN
doAssert lgamma(0.0) == Inf
doAssert lgamma(-0.0) == Inf
doAssert lgamma(-1.0) == Inf
when nimvm: discard
else:
var exponent: cint
doAssert c_frexp(0.0, exponent) == 0.0
doAssert c_frexp(-0.0, exponent) == -0.0
doAssert classify(c_frexp(-0.0, exponent)) == fcNegZero
static: main()
main()