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Autor: Rainer Weikusat
Data:  
Para: dng
Assunto: Re: [DNG] Unmingling kdbus and the Linux kernel
Hendrik Boom <hendrik@???> writes:
> On Mon, Aug 03, 2015 at 01:14:16PM +0100, Rainer Weikusat wrote:
>
>>
>> [*] In case you want an example where this is at least debatable (and I
>>     happen to disgree with what he wrote on the topic). The simplest way
>>     to implement a block memory copy in C is

>
> Correction:
>
>>
>>     static void cpy(char *d, char const *s, size_t len)
>>     {
>>         while (len) --len, d[len] = s[len];
>          while (len){ --len, d[len] = s[len]; |
>>     }

>>
>
> It may have been simple, but not correct.


A C 'while loop' is defined as

while ( expression ) statement

and

--len, d[len] = s[len];

is a perfectly valid expression statement.