Re: "A diagram of C23 basic types"

Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:

[considering ways of importing all headers defined as part
 of the standard library]

My point is that, as far as I'm aware, nobody has implemented
"implicitly include all the standard headers", either as a compiler
option or as a wrapper script.  I'm sure somebody has (I could do
it in a few minutes), but it's just not something that programmers
appear to want.
>
Of course part of the motivation for *not* wanting this is that
it results in non-portable code, and if it were standardized that
wouldn't be an issue.
>
And if it were standardized, <assert.h> would raise some issues,
since NDEBUG needs to be defined or not defined before including it.

Not really a problem, since if a different choice for NDEBUG were
desired then it could be #define'd or #undef'ed, as appropriate,
followed by another #include <assert.h>.

That said, it's hard to imagine many people wanting such a thing.
It's a very rare translation unit that needs or even wants access
to symbols defined in every header in the standard library.  And
it flies in the face of the common practice of #include'ing only
those headers that are actually needed in each translation unit.