Running mackey_glass_lyap.py causes Python crash

[hangyao]

Running mackey_glass_lyap.py in examples folder causes Python crash. mackey_glass.py is running okay.

Here is the output:

(python3) C:\Users\cyao\Documents\Python\jitcdde\examples>python mackey_glass_ly
ap.py
Generating, compiling, and loading C code.
jitced.c
C:\Users\cyao\AppData\Local\Temp\tmpvmly19ga\jitced.c(706): warning C4244: 'init
ializing': conversion from 'Py_ssize_t' to 'unsigned int', possible loss of data

   Creating library C:\Users\cyao\AppData\Local\Temp\tmpvmly19ga\Release\Users\c
yao\AppData\Local\Temp\tmpvmly19ga\jitced.cp36-win_amd64.lib and object C:\Users
\cyao\AppData\Local\Temp\tmpvmly19ga\Release\Users\cyao\AppData\Local\Temp\tmpvm
ly19ga\jitced.cp36-win_amd64.exp
Generating code
Finished generating code
Using default integration parameters.

Using Python 3.6, Windows 7, and VC++ Build Tool 14.0

[Wrzlprmft]

Thanks for your report. I will not get to a Windows machine before Monday, but until then can you please tell me:

• Does mackey_glass.py also produce the conversion warning?
• How exactly does it crash? Is there any message?
• Can you find out at which exact step the program crashes?

[hangyao]

Thank you for your prompt response! To answer your questions:

1. No. mackey_glass.py doesn't produce the conversion warning.
2. In Windows, it prompts Python has stopped working... and then asks for sending the error information to MS. Here is the Windows error information metadata attached. Hopefully it will help.
3. It crashes at line 33: DDE.step_on_discontinuities(max_step=1.0)

WERBCB3.tmp.WERInternalMetadata.txt

[Wrzlprmft]

This should be fixed now. Thanks again for spotting.