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Message-ID: <CAA-4+jeg_iAJLBc9sJGwK+q0dyMq7yukT_Hwi-bnRCpBuOeVRw@mail.gmail.com>
Date: Tue, 5 Apr 2016 10:48:49 +0900
From: Masanori Ogino <masanori.ogino@...il.com>
To: musl@...ts.openwall.com, Masanori Ogino <masanori.ogino@...il.com>
Subject: Re: [PATCH] Add stdc-predef.h.
Thank you for reviewing.
2016-04-01 18:37 GMT+09:00 Szabolcs Nagy <nsz@...t70.net>:
> * Masanori Ogino <masanori.ogino@...il.com> [2016-04-01 15:31:13 +0900]:
>> Reference: http://www.openwall.com/lists/musl/2016/03/31/2
>>
>> Signed-off-by: Masanori Ogino <masanori.ogino@...il.com>
>> ---
>> include/stdc-predef.h | 18 ++++++++++++++++++
>> 1 file changed, 18 insertions(+)
>> create mode 100644 include/stdc-predef.h
>>
>> diff --git a/include/stdc-predef.h b/include/stdc-predef.h
>> new file mode 100644
>> index 0000000..f599a33
>> --- /dev/null
>> +++ b/include/stdc-predef.h
>> @@ -0,0 +1,18 @@
>> +#ifndef _STDC_PREDEF_H
>> +#define _STDC_PREDEF_H
>> +
>> +/* FIXME: What is the exactly version supported by musl? */
>> +/* ISO/IEC 10646:2011, Uncode 6.0 except U+20B9 INDIAN RUPEE SIGN */
>> +#define __STDC_ISO_10646__ 201103L
>
> i think it's unicode 6.1, that is ISO/IEC 10646:2012
> #define __STDC_ISO_10646__ 201206L
OK.
>> +#define __STDC_UTF_16__ 1
>> +#define __STDC_UTF_32__ 1
>
> these are defined by gcc since it matters
> for u'x' and U'x' literals.
I confirmed that they are defined with -std=gnu11. Thank you for
pointing it out.
>> +
>> +#if defined(__GCC_IEC_559) && __GCC_IEC_559 > 0
>
> undefined macros are implicitly 0 so
> #if __GCC_IEC_559 > 0
>
>> +#define __STDC_IEC_559__ 1
>> +#endif
>> +
>> +/* GCC does not support the "Annex G" complex arithmetic even though
>> + * __GCC_IEC_559_COMPLEX is defined. Thus, we leave __STDC_IEC_559_COMPLEX__
>> + * undefined for now. */
>
> this comment should go into the commit log
>
> (this file will be included into every
> translation unit so it should be minimal)
Sure. I will revise them.
--
Masanori Ogino
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