Re: strtod not in namespace.h?

[Jörg Sonnenberger <joerg%bec.de@localhost>]

On 11/10/24 1:00 AM, Valery Ushakov wrote:
> I noticed that strtod(3) is not in libc's namespace.h though it's
> sibling strtof(3) is (along with others).  Is this an oversight?
>
> I tried to link inferno-os statically (to check that I get the -l
> order right for the X11 libs) and got:
>
> ld: /usr/lib/../lib/sparc/libc.a(strtod.o): in function `_strtold':
> strtod.c:(.text+0x19c0): multiple definition of `strtod'; /home/uwe/work/inferno/inferno/NetBSD/sparc/lib/libmath.a(dtoa.o):/home/uwe/work/inferno/inferno/libmath/dtoa.c:676: first defined here
>
> inferno has its own version of dtoa.c that defines its own strtod.
>
> Our libc defines both strtod(3) and strtod_l(3) in the same file and
> vfscanf.c pulls in strtod.c for _strtold_l, and since strtod is not
> namespaced, it conflicts with the inferno's version.
>
> Shouln't we add
>
>    #define strtod _strtod
>
> to namespace.h?

Normally you are not supposed to replace standard functions. We make an 
exception for hysterical reasons for the malloc family, but that's about 
it. Especially since strtod is part of the C standard itself.

Joerg