Question

I have this cpp file where I include bunch of C files.

main.cpp

extern "C" {
#include "types.h"
#include "file1.h"
}
...

types.h

#IFNDEF TYPES_H
#DEFINE TYPES_H
typedef unsigned short int char16;
...
#ENDIF // TYPES_H

file1.h

#include "file2.h"
...

file2.h

...
char16* testCode();
...

For some reason the compiler gives me an error that the char16 is not declared. Any idea why the include does not inheritate from the CPP file to the C-file? Any help is appreciated. Thanks!

Answer 1

You should include the types.h in file2.h. You don’t seem to be doing that.

Btw, the code posted compiles on my machine without any errors, whereas if I comment the "#include "types.h" in main.cpp, it gives me an error.