With doxygen, I'm used to write
/**
* @brief blah blah
*
* @param foo description of foo
* @param bar description of bar
* @return description of the return value
*/
int f(int foo, unsigned bar);
But what if I don't name one of the parameter? :
int f(int, unsigned bar);
How can I document this parameter when I can't refer to it by name?