🚀 go-pugleaf

   Consider a project that spans several directories.  In particular,
   let's suppose it has the files project/d1/base.h,
   project/d1/derived.h, and project/d2/main.cc.  Here are some code
   fragments.

[snip]

   So my challenge: can anyone think of an acceptable replacement for
   "The named source file is searched for in an implementation-defined
   manner" that would provide a bit more of a guarantee of reasonable
   behavior?

I think I can, I'll let you be the judge.
Create a header file that you know you can include,
in it have something line

#define STR__(X) #X
#define STR(X) STR__(X)
#define CAT__(A,B) A##B
#define CAT(A,B) CAT__(A,B)

#define ROOT_DIR /home/someone/project/
#define NAME(X) STR(CAT(ROOT_DIR,X))

#define BASE NAME(d1/base.h)
#define DERIVED NAME(d2/derived.h)

then say something like
#include "includes.h"
#include DERIVED

Then all you have to have is includes.h simply reachable from every file,
say a copy in every directory and it should work fine.

Of course for a really strange system the includes.h file needs to be
seriously changed but nothing else does.

Hope that helps Matt,
Eric


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