On Fri, 13 May 2022 15:31:20 +0900 Vincent Mailhol <vincent.mailhol@xxxxxxxxx> wrote: > On Fri. 13 May 2022 at 11:38, Vincent Mailhol > <vincent.mailhol@xxxxxxxxx> wrote: [...] > > > + case ELM327_STATE_RECEIVING: > > > + /* Find <CR> delimiting feedback lines. */ > > > + for (len = 0; > > > + (len < elm->rxfill) && (elm->rxbuf[len] != > > > '\r'); > > > + len++) { > > > + /* empty loop */ > > > > Question of taste but would prefer a while look with the len++ in > > the body (if you prefer to do as above, no need to argue, just keep > > it like it is). > > Actually, what about this? > > len = strnchr(elm->rxbuf, elm->rxfill, '\r'); Actually I'd use memchr() if anything, but not really here. I do end up using the actual index. And since both strchr() and mrmchr() return pointers, I'd rather avoid them because I prefer to use indices whenever possible. Max