If they're all in the same directory, then
#include "listdbl.h"
Then it should find that header file just fine.
If you have #include <listdbl.h>
Then you need to specify a search path.
From the command line, you might try
CL /I. prog.c
Salem
Posting Sage
11,531 posts since Dec 2005
Reputation Points: 5,862
Solved Threads: 953