Exit() called in ruby_run()

My program in ruby just create a file; I want use this file in my program in
C, after ruby_run.

I read the example but I don’t understand how can I correct my problem.

···

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My program in ruby just create a file; I want use this file in my program in
C, after ruby_run.

Can you post your program, if it has only few lines or send me in
private email ?

Guy Decoux