/**
@page GRAS_tut_tour_exchangecb Lesson 16: Advanced topics on data definition (TODO)
\section GRAS_tut_tour_exchangecb_toc Table of Contents
- \ref GRAS_tut_tour_exchangecb_intro
- \ref GRAS_tut_tour_exchangecb_use
- \ref GRAS_tut_tour_exchangecb_recap
\section GRAS_tut_tour_exchangecb_intro Introduction
\section GRAS_tut_tour_exchangecb_use Using exchange callbacks
\section GRAS_tut_tour_exchangecb_recap Recapping everything together
The program now reads:
include 15-exchangecb.c
Which produces the expected output:
include 15-exchangecb.output
*/