Re: Thoughts about using inttypes.h

[Mikael Djurfeldt]

Rob Browning <address@hidden> writes:

> The new C99 standard requires inttypes.h:
>
>   - New <inttypes.h>, giving typedefs specifying integer types with
>
>       * exactly n bits
>       * at least n bits
>       * the fastest (whatever that means) type having at least n bits
>         where n in [8, 16, 32, 64]. Also defines for each of these
>         types macros expanding to the correct format specifiers for
>         the printf and scanf families, as well as macros expanding to
>         the correct suffixes for constants (e.g., UINT64_C (0x123)
>         might expand to 0x123ULL) and for the maximum and minimum
>         values of these types.
>
> I'm considering the possiblity of using this header, or at least some
> of the provided type names in Guile.  The idea would be to use this
> header on those platforms where whe find it, and to declare the
> relevant typedefs ourselves on platforms where we don't.
>
> The reason I bring this up is that I've come across some places in the
> code where we make assumptions about the sizes of various types (like
> char, int, etc.), and I'd like to fix that, but it would be a lot
> easier to fix without undue #ifdef and configure.in complexity, if we
> had some known size integral types.
>
> Anyone opposed?

I'm not.  It sounds excellent.

Mikael