Timeline for Implementation of C Standard Library Function ntohl()

6 events

when toggle format	what		by	license	comment
Dec 13, 2016 at 21:33	history	edited	Roland Illig	CC BY-SA 3.0	added 1 character in body
Dec 13, 2016 at 13:36	comment	added	Peter - Reinstate Monica		@DavidBowling The `ntohl` which comes with your compiler is most likely a compiler built-in or comes with the system library for the specific target CPU designed to squeeze out the last bit of performance, i.e. it will not be a function, and it will not be portable, and it will not be C. Some drivers may rely on that performance. It will specifically be not even a NOP for big endian machines. If you strive for portable code, however, @Matthieu has said it all in his answer.
Dec 13, 2016 at 10:55	comment	added	ad absurdum		As I mentioned in the question, I only check for little-endian byte order, which is why I used `uint16_t`. Does the library version of `ntohl()` check for PDP-endianness? What about other middle-endian schemes?
Dec 13, 2016 at 10:52	comment	added	ad absurdum		Thanks for the comments. I am still getting used to inclusion guards, and I guess I did not really need one here. I think that the only place I ever use lowercase ells in identifiers is with hexadecimal literals, and this is to set the suffix off from the digits. But it always makes me wince a little, and this is a style point that I have not settled for myself yet.
Dec 13, 2016 at 8:07	history	edited	Roland Illig	CC BY-SA 3.0	added 1 character in body
Dec 13, 2016 at 8:02	history	answered	Roland Illig	CC BY-SA 3.0