Fix llFabs with corner cases.

Minus zero is returned unchanged. Indet and NaN are returned unchanged too.
2017-01-24 06:02:45 +01:00
parent 27adfdbfb9
commit e8852ad124
1 changed files with 2 additions and 0 deletions
--- a/lslopt/lslbasefuncs.py
+++ b/lslopt/lslbasefuncs.py
@@ -1097,6 +1097,8 @@ def llEuler2Rot(v):

 def llFabs(f):
    assert isfloat(f)
+    if f == 0.0 or math.isnan(f): # llFabs(-0.0) is -0.0; llFabs(-nan) is -nan
+        return f
    return math.fabs(f)

 def llFloor(f):