Re: [Dev-C++] Convert Little-Endian to Big-Endian (and vice versa)

[Cary H. <xen...@gm...>]

two things you should be considered:

1. In my experience, endian conversion is primarly used in porting
code to a different platform.

consequently,

2.  You shouldn't make assumptions about how many bits are in an given
 type,  as different compliers on the same platform, and even the same
compiler on different platforms will used different sizes.  An good
example of this is in the WinAPI,  Win32 says an unsigned long is 32
bits, while Win64 says its 64.



On Thu, 11 Nov 2004 04:54:13 +0000 (GMT), Joey Dala
<jda...@ya...> wrote:
> 
> Hello, 
>   
> Does anybody know a faster algorithm to swap the bytes 
> of an 'unsigned long' than this: 
>   
> // SWAP 32-BITS
> #define SWAP_LONG( A )  ((A << 24) | ((A & 0xff00L) << 8 ) | ((A &
> 0xff0000L) >> 8 ) | ((unsigned long)A >> 24)) 
>   
> Thank You. 
> Joey
> 
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