CPS problems in Nim 2.0.8

[DougT]

I am trying the tutorial programs for CPS using nim 2.0.8.

  1. Program cpstut1.nim runs ok, but if if put the global code in proc main, I 
get the error


    
    
    /home/doug/nim-tdt/cps/hello2.nim(18) hello2
    /home/doug/nim-tdt/cps/hello2.nim(15) main
    SIGSEGV: Illegal storage access. (Attempt to read from nil?)
    Segmentation fault (core dumped)
    Error: execution of an external program failed: 
'/home/doug/nim-tdt/cps/hello2'
    
    
    Run

It runs ok on 1.6.12.

2\. Program cpstut2.nim gives the error:
    
    
    /home/doug/nim-tdt/cps/coopSked.nim(33) main
    /home/doug/nim-tdt/cps/coopSked.nim(15) runWork
    SIGSEGV: Illegal storage access. (Attempt to read from nil?)
    Segmentation fault (core dumped)
    Error: execution of an external program failed: 
'/home/doug/nim-tdt/cps/coopSked'
    
    
    Run

The program runs ok on nim 1.6.12