You may not like for this idea, but rather than using a non-standard compiler extension, you could search and replace your code samples and not embed /* or */ in comments.
/**
* The description of this function is that it will be described with an example.
* <pre>
* /* nobody knows what this function will do */
* void main(int argc, char *argv[]) {
* mystery_function();
* }
* </pre>
*/
void mystery_function();