Calling inqlinetype before setting lintype causes a crash

[kojix2]

Hello. Thank you for the great project. This is a minor issue.

import gr
gr.setlinetype(3)
print(gr.inqlinetype())

3

import gr
gr.inqlinetype()

import gr
gr.inqlinewidth()

Segmentation fault (core dumped)

• Ubuntu 19.04
• GR version 0.41.2

[FlorianRhiem]

GR and GKS need to be initialized before being used and many GR functions check whether this has been done yet and do it if necessary. Apparently, some functions expect the user to have used GR before, including some inquire functions. As a result these functions may crash if they are called straight away.

I've prepared a fix for this, adding new autoinit checks to several functions. Until then, a simple workaround would be to call another GR function first which does perform the initialization, e.g. gr.clearws() or gr.inqdspsize().

[kojix2]

I see. Thank you.

[FlorianRhiem]

The issue has been fixed in GR runtime commit fe68d18331721809200b0e7fe5d1af814be27510 and the fix was release as part of GR runtime version 0.41.3.