Conditional includes maybe messing with compilation about dpp HOT 7 CLOSED

I tried to make a reduced test case, but it seems to work fine then. I'll keep digging and see if I can get a more precise reason why it's failing.

from dpp.

I can't do much unless you have a specific example that doesn't work.

from dpp.

Just read the project description a bit closer again and realized you mentioned the following

"The only supported C preprocessor directive is #include."

which would explain why the following wasn't behaving. Are there plans to expand this?

// issue.dpp
#include <stdio.h>
 
#ifdef SOMETHING
#include "issue.h" // SOMETHING is never defined but this gets included anyways
#endif
 
void main()
{
    S s = S(5);
    printf("%d\n", s.x);
}
 
 
// issue.h
#ifndef ISSUE_H
#define ISSUE_H
 
typedef struct _S {
    int x;
} S;
 
#endif

from dpp.

Are there plans to expand this?

No, especially since I can't imagine a situation in which that would be needed. I'm not sure why you're trying to use the preprocessor in a .dpp file for conditional compilation. D has version for that:

version(SOMETHING) {
    #include "issue.h"
}

from dpp.

That was just what was in the source code I'm messing around with porting. I attempted with version(SOMETHING) and that doesn't work. I'm guessing this is because #include is processed before version.

from dpp.

It depends where SOMETHING comes from. It depends on what you're trying to do.

The purpose of dpp is to enable #including C header files, not to aid in the translation of a C source file. If you already have a C source file, then compile it and call the functions that are implemented in it from a .dpp file.

from dpp.

Fair enough, I'll close this then and finagle around with it.

from dpp.