From: ts <decoux@...>
Date: 2003-02-28T20:38:36+09:00
Subject: Re: I'm stuck

>>>>> "F" == Friedrich Dominicus <frido@q-software-solutions.com> writes:

F> int main (void){
F>   int i;
F>   VALUE obj;
F>   VALUE klass;
F>   ruby_init(); /* embed Ruby into this program! */

    /* At this step you are playing a dangerous game with the GC */

F>   /* uby_script("embed");
F>      rb_load_file("t1.rb"); */ 
F>   obj = rb_eval_string("load 't1.rb'");


     ruby_init_loadpath(); /* initialize search path */
     rb_require("t1");     /* no need for eval */

F>         /* question why does rb_load_file does not work? */
F>   klass =  rb_const_get(rb_cObject, rb_intern("T1"));
F>         /* why does this work? Well my understanding ist that I loaded
F> the file into the embedded ruby, after that T1 is known, so I can look
F> it up. The problem I now is why rb_load_file does not work the same
F> way */

    /* test if @@some_var is defined before trying to access it */

F>   obj = rb_cv_get(klass, "@@some_var");

    /* test here if obj is really an Array */
  
F>   for (i = 0; i < RARRAY(obj)->len; ++i){
F>     printf("obj[%d] = %s\n", i, STR2CSTR(rb_ary_entry(obj,i)));
F>   }
F>   return 0;
F> }

 If ruby give an error, you'll have a segfault : none of your calls are
 protected. 


Guy Decoux