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lib: Document what move_to_next does at the end of the list.

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Explicitly mention that there's an invalid position after the last
item in the list.
This commit is contained in:
Carl Worth 2010-03-09 09:24:45 -08:00
parent 4e5d2f22db
commit 64646841f7
1 changed files with 20 additions and 0 deletions
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20
lib/notmuch.h
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@ -466,6 +466,11 @@ notmuch_thread_t *
notmuch_threads_get (notmuch_threads_t *threads);
/* Move the 'threads' iterator to the next thread.
*
* If 'threads' is already pointing at the last thread then the
* iterator will be moved to a point just beyond that last thread,
* (where notmuch_threads_valid will return FALSE and
* notmuch_threads_get will return NULL).
*
* See the documentation of notmuch_query_search_threads for example
* code showing how to iterate over a notmuch_threads_t object.
@ -640,6 +645,11 @@ notmuch_message_t *
notmuch_messages_get (notmuch_messages_t *messages);
/* Move the 'messages' iterator to the next message.
*
* If 'messages' is already pointing at the last message then the
* iterator will be moved to a point just beyond that last message,
* (where notmuch_messages_valid will return FALSE and
* notmuch_messages_get will return NULL).
*
* See the documentation of notmuch_query_search_messages for example
* code showing how to iterate over a notmuch_messages_t object.
@ -956,6 +966,11 @@ const char *
notmuch_tags_get (notmuch_tags_t *tags);
/* Move the 'tags' iterator to the next tag.
*
* If 'tags' is already pointing at the last tag then the iterator
* will be moved to a point just beyond that last tag, (where
* notmuch_tags_valid will return FALSE and notmuch_tags_get will
* return NULL).
*
* See the documentation of notmuch_message_get_tags for example code
* showing how to iterate over a notmuch_tags_t object.
@ -1064,6 +1079,11 @@ const char *
notmuch_filenames_get (notmuch_filenames_t *filenames);
/* Move the 'filenames' iterator to the next filename.
*
* If 'filenames' is already pointing at the last filename then the
* iterator will be moved to a point just beyond that last filename,
* (where notmuch_filenames_valid will return FALSE and
* notmuch_filenames_get will return NULL).
*
* It is acceptable to pass NULL for 'filenames', in which case this
* function will do nothing.