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net/nanocoap_sock: insert doc to add options in order

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Ken Bannister 2019-09-15 05:38:58 -04:00
parent 414c68a654
commit 5b0aacc9cf
1 changed files with 2 additions and 1 deletions
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3
sys/include/net/nanocoap_sock.h
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@ -83,7 +83,8 @@
* Next, use the functions in the _Options Write Buffer API_ section of
* [nanocoap](group__net__nanocoap.html) to write each option. These functions
* require the position in the buffer to start writing, and return the number
* of bytes written.
* of bytes written. Options *must* be written in order by option number (see
* "CoAP option numbers" in [CoAP defines](group__net__coap.html)).
*
* @note You must ensure the buffer has enough space remaining to write each
* option. The API does not verify the safety of writing an option.