From: Peter Krefting <peter@softwolves.pp.se>
Date: Tue, 25 Jun 2013 13:08:39 GMT
Subject: Re: [PATCH 07/16] compat: add endinanness helpers
Message-ID: <alpine.DEB.2.00.1306251404510.9929@ds9.cixit.se>
In-Reply-To: <1372116193-32762-8-git-send-email-tanoku@gmail.com>

Vicent Marti:

> The POSIX standard doesn't currently define a `nothll`/`htonll` 
> function pair to perform network-to-host and host-to-network swaps 
> of 64-bit data. These 64-bit swaps are necessary for the on-disk 
> storage of EWAH bitmaps if they are not in native byte order.

endian(3) claims that glibc 2.9+ define be64toh() and htobe64() which 
should do what you are looking for. The manual page does mention them 
being named differently across OSes, though, so you may need to be 
careful with that.

-- 
\\// Peter - http://www.softwolves.pp.se/