ID 252874 - isnan() fails in DeepExpression

Follow
  1. The Foundry SANDBOX
  2. Bug Tracker
  3. Nuke

Problem summary
isnan() fails in DeepExpression

Customer reported version
nuke.10.0v4

Customer reported platform
windows7

Steps to reproduce

1) To a DeepRead image connect a Viewer

2) add a DeepExpression node in between

3) in the DeepExpression, set any channel to
isnan(r)?0:r

Workaround
Unknown.

Reproduced by support
Nuke10.5v1  on Windows 7 and OS 10.10.5

Nuke7.0v9  OS 10.10.5

Expected behaviour
if the value of the red channel is not a number, then the set channel would get the value of 0, otherwise get the value of the red channel

This works in the ordinary Expression node when you view a Colorbars, for instance

Actual behaviour
ERROR: DeepExpression1: Nothing named 'isnan' in 'isnan(r)?0:r'

    We're sorry to hear that

    Please tell us why