[ruby-fltk-devel] Segmentation fault

[Kevin S. <kev...@ya...>]

This little program gets a segfault when I exit:

###
require 'fltk'

Fltk::FLWindow.new(0, 0, 400, 200, 'Hello Ruby-FLTK!').show
Fltk::run
###

I wonder if it might be because FLTK doesn't make a copy of
the label string? In my prototype, I coded for this (even
though I didn't actually see a problem). Here's my label()
method in the C++ class that wrapped each FLTK class:

void label(const char* p) { \
   const char* pOld = Fl_##klass::label(); \
   free((char*)pOld); \
   char* pNew = strdup(p); \
   Fl_##klass::label(pNew);} \
   const char* label() { printf("Getting\n"); \
   return Fl_##klass::label();} \

I never passed a label to the actual FLTK widget
constructor. I would always call label() after the actual
construction, so it would go through this code.

You know more about Ruby memory management, so I don't want
to make a change like this myself yet.

I don't know why your window.rb sample works fine.

Kevin


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