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Hi,

I started writing my own extension for Ruby in C and I encounteredhat may be a bug with NUM2INT.

I just wanted to convert a Ruby VALUEo a C Int. The problem is that I don't get the same value whether I use NUM2INT, rb_num2int or NUM2LONG.

For instance:
static VALUE rb_video_stream_new(VALUE self, VALUE vindex) {
   long index = NUM2INT(vindex);
   printf("vindex %d, index %d\n", vindex, index);
   long index2 = rb_num2int(vindex);
   printf("vindex %d, index %d\n", vindex, index2);
   long index3 = NUM2LONG(vindex);
   printf("vindex %d, index %d\n", vindex, index3);
   return Qnil;
}

void Init_video_stream(VALUE dae_mod) {
   VALUE video_stream_class = rb_define_class_under(dae_mod,Testo", rb_cObject);
   rb_define_singleton_method(video_stream_class, "new", rb_video_stream_new, 1);
}

In ruby, Testo.new(100) will print:
vindex 201, index 101
vindex 201, index 100
vindex 201, index 101


I use Ruby 1.8.6 (114), the last one in Gentoo. See attached file for the source code.
Maybe this problem is resolved in 1.8.7?

Regards,
Sylvain


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