BSD licensed generic linked list for C99, used in liblacewing and some other stuff.
Uses typeof and statement expressions which are GNU extensions, but will work
with MSVC++ with a hack.
For a usage example, see test.c.
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"Object in list" rather than "list in object": the listed objects do not have to be aware of the list
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The linked list logic (and internal representation) is separate from the macros
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The list head does not require initialisation other than being cleared with null bytes
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The macros are intuitive and do not require any unnecessary parameters. In particular, the list type does not need to be passed to each operation.
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The loop macros expand to the head of a
forloop, so the syntax for using them isn't buggered up. This means that one can usebreakandcontinuenormally.
list(type, name) Declare a list
list_push(list, value) Push value to back
list_push_front(list, value) Push value to front
list_pop(list) Pop and return value from back
list_pop_front(list) Pop and return value from front
list_length(list) Returns the list length
list_remove(list, value) Remove first occurrence of value from list
list_clear(list) Clear the list (freeing all memory)
list_elem_front(list) Returns element at the front of list
list_elem_back(list) Returns element at the back of list
list_elem_next(elem) Returns element after elem
list_elem_prev(elem) Returns element before elem
list_elem_remove(elem) Remove element elem
list_each(list, elem) { ... }
Loops through each list element, front to back. elem will be declared and
set to the actual value of each element (not a pointer or iterator)
list_each_r(list, elem) { ... }
Loops through each list element, back to front. elem will be declared and
set to the actual value of each element (not a pointer or iterator)
list_each_elem(list, elem) { ... }
Loops through each list element, front to back. elem will be declared and
set to a pointer to each element.
list_each_r_elem(list, elem) { ... }
Loops through each list element, back to front. elem will be declared and
set to a pointer to each element.