OpenEuphoria

Re: memstruct segfaults

• Posted by mattlewis (admin) Feb 06, 2015
• 1744 views

A handy way to debug this sort of thing (front end segfault) is to run with the interpreted front end (eui.ex).

-- segfault when referencing a memstruct within itself. should be "syntax error, 
-- memstruct cannot reference itself directly. did you mean 'pointer TEST_STRUCT next'?" 
 
memstruct TEST_STRUCT 
    TEST_STRUCT next 
end memstruct 

Hmm...this one seems to be getting into an infinite loop, which kinda makes sense. That's a bad declaration. I'm sure that should be a pointer to a TEST_STRUCT.

-- segfault when referencing an undefined memtype. should be "memtype 'bool' has not been declared." 
memstruct TEST_STRUCT 
    bool enabled 
end memstruct 

This one I get:

std/sequence.e:2276 in function join()  
type_check failure, items is 172  
... called from /home/matt/eu/oe/hg/source/fwdref.e:1187 in procedure Resolve_forward_references()   
... called from /home/matt/eu/oe/hg/source/parser.e:5242 in procedure parser()   
... called from /home/matt/eu/oe/hg/source/main.e:201 in procedure main()   
... called from /home/matt/eu/oe/hg/source/main.e:228  
--> See ex.err 

So...have to dig into these to see what's going on. Thanks for the heads up.

Matt