Date: Wed, 30 Jul 2014 05:07:39 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-doc@FreeBSD.org Subject: [Bug 192267] New: queue(3) doesn't note that HEADNAME argument in *_HEAD macro is optional/creates anonymous structs Message-ID: <bug-192267-9@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192267 Bug ID: 192267 Summary: queue(3) doesn't note that HEADNAME argument in *_HEAD macro is optional/creates anonymous structs Product: Documentation Version: Latest Hardware: Any OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: Documentation Assignee: freebsd-doc@FreeBSD.org Reporter: yaneurabeya@gmail.com Some of the code in the tree uses the data structures in a one-off manner, such that specifying the HEADNAME value for the *_HEAD macro isn't required. What omitting HEADNAME does is creates an anonymous structure for describing the data structure/pointers, whereas specifying HEADNAME creates a named structure for describing the data structure/pointers, i.e. 149 #define SLIST_HEAD(name, type) \ 150 struct name { \ 151 struct type *slh_first; /* first element */ \ 152 } ... 242 #define STAILQ_HEAD(name, type) \ 243 struct name { \ 244 struct type *stqh_first;/* first element */ \ 245 struct type **stqh_last;/* addr of last next element */ \ 246 } ... 363 #define LIST_HEAD(name, type) \ 364 struct name { \ 365 struct type *lh_first; /* first element */ \ 366 } ... 491 #define TAILQ_HEAD(name, type) \ 492 struct name { \ 493 struct type *tqh_first; /* first element */ \ 494 struct type **tqh_last; /* addr of last next element */ \ 495 TRACEBUF \ 496 } -- You are receiving this mail because: You are the assignee for the bug.
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