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From: "Javier Martín" <lordhabbit@gmail.com>
To: The development of GRUB 2 <grub-devel@gnu.org>
Subject: Re: Endianness macros capitalization
Date: Sun, 06 Jul 2008 00:54:58 +0200	[thread overview]
Message-ID: <1215298499.26019.192.camel@localhost> (raw)
In-Reply-To: <1215293427.17114.2.camel@dv>

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El sáb, 05-07-2008 a las 17:30 -0400, Pavel Roskin escribió:
> They probably should be functions.  We may want to sparse annotate GRUB
> one day, and then inline functions in the only way to go.
Hmm... you mean changing this

#define grub_swap_bytes16(x)	\
({ \
   grub_uint16_t _x = (x); \
   (grub_uint16_t) ((_x << 8) | (_x >> 8)); \
})

...for this

inline grub_uint16_t grub_swap_bytes16(uint16_t x)
{
  return (x << 8) | (x >> 8);
}

and such? The pro is that we get rid of the ugly hack in the macro
version that ensures single evaluation, but a con is that we cannot
_force_ any random compiler to inline anything, so we might end up with
gross numbers of function calls.

By the way, what is "sparse annotate"?

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  reply	other threads:[~2008-07-05 22:55 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-05 13:27 Endianness macros capitalization Javier Martín
2008-07-05 21:30 ` Pavel Roskin
2008-07-05 22:54   ` Javier Martín [this message]
2008-07-05 23:14     ` Pavel Roskin
2008-07-06 18:30     ` Robert Millan
2008-07-06 20:02       ` Javier Martín
2008-07-07 19:25         ` Christian Franke
2008-07-08 18:04           ` Christian Franke
2008-07-09  6:47             ` Pavel Roskin
2008-07-09 12:50               ` Christian Franke
2008-07-09 17:57                 ` Pavel Roskin
2008-07-10 19:25                   ` Christian Franke
2008-07-10 19:59                     ` Pavel Roskin
2008-07-11  7:06                       ` Jordi Mallach
2008-07-11  8:53                     ` Pavel Roskin
2008-07-11  9:07                       ` Pavel Roskin
2008-07-11 13:21                         ` Christian Franke
2008-07-11 18:33                           ` Pavel Roskin
2008-07-20 13:45                 ` Christian Franke
2008-07-20 23:31                   ` Pavel Roskin

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