Stefanos via Tinycc-devel <[email protected]> wrote:
[omitted for brevity]
> Now, what's more interesting, is that if we open the standard stdio.h
> located at /usr/include/, at least in GNU / Linux Debian's case, we will
> notice at the very top, right after __BEGIN_DECLS that we have
>
> #define __need_size_t
> #define __need_NULL
> #include <stddef.h>
>
> Thus, the implicit inclusion you were looking for.
it is important to note that the intent of glibc here is to have size_t and
NULL defined
and not to define offsetof, which it doesn't - which is done with those __need_
macros
this is nonstandard - in the n3467 working draft of ISO/IEC 9899:202y (en)
under 7.21.1:
The header <stddef.h> defines the following macros and declares the
following types. Some are
also defined in other headers, as noted in their respective subclauses.
[...]
The types are
ptrdiff_t
[...]
>
> Now, how TCC parses this specific stddef.h header file to point at
> /usr/local/lib/tcc/include/stddef.h goes beyond my knowledge.
it's the only stddef.h within the implicity-defined include paths that could be
found
tcc's stddef.h unconditionally defines ptrdiff_t, etc. - as it should
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