Re: Adding Methods related to inttypes.h

[Sebastian Huber <sebastian.huber@embedded-brains.de>]

On 14/06/17 10:44, Corinna Vinschen wrote:

> On Jun 14 07:42, Sebastian Huber wrote:
>> On 13/06/17 21:03, aditya upadhyay wrote:
>>
>>> Hello Developers,
>>>
>>> I have ported the methods what are declared inside the inttypes.h
>>> header file from freebsd. I am requesting you to please review the
>>> code.
>>>
>>> I am not able to push the code of ccoshl.c in my forked repo. It is
>>> saying fatal error. I do not know how to apply the signature.asc file.
>>> Please have a look on my issue.
>>> [...]
>>>    newlib/libc/Makefile.am          |   4 +-
>>>    newlib/libc/inttypes/Makefile.am |  24 +++++++
>>>    newlib/libc/inttypes/imaxabs.c   |  44 ++++++++++++
>>>    newlib/libc/inttypes/imaxdiv.c   |  53 ++++++++++++++
>>>    newlib/libc/inttypes/strtoimax.c | 144 +++++++++++++++++++++++++++++++++++++
>>>    newlib/libc/inttypes/strtoumax.c | 135 ++++++++++++++++++++++++++++++++++
>>>    newlib/libc/inttypes/wcstoimax.c | 151 +++++++++++++++++++++++++++++++++++++++
>>>    newlib/libc/inttypes/wcstoumax.c | 144 +++++++++++++++++++++++++++++++++++++
>> These functions should probably go into "newlib/libc/stdlib" just like on
>> FreeBSD and NetBSD. Where does this "inttypes" directory come from?
> ACK.
>
> Also, newlib already has functions strtoll, strtoull, wcstoll, wcstoull.
> So the aliasing to strtoimax, etc, seems like a bad idea.  In theory,
> all we need is an aliasing from strtoll to strtoumax, etc, in the existing
> sources.

As a background information, this is part of a Google Summer of Code 
project:

https://docs.google.com/document/d/1_eo87eOiHmIHokfsgFYY3F98FNmorpVTm4AI1WE-iKo/edit

You can use __strong_alias from <sys/cdefs.h> to create an alias from 
strtoll to strtoumax. We should make sure that the types have the same 
size with a compile-time assertion.

-- 
Sebastian Huber, embedded brains GmbH

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