diff options
Diffstat (limited to 'Build/source/texk/web2c/pdftexdir/avl.h')
| -rw-r--r-- | Build/source/texk/web2c/pdftexdir/avl.h | 145 |
1 files changed, 70 insertions, 75 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/avl.h b/Build/source/texk/web2c/pdftexdir/avl.h index 446a11a0ba9..c993ee01f26 100644 --- a/Build/source/texk/web2c/pdftexdir/avl.h +++ b/Build/source/texk/web2c/pdftexdir/avl.h @@ -24,100 +24,95 @@ */ #ifndef AVL_H -#define AVL_H 1 +# define AVL_H 1 -#include <stddef.h> -#if defined(__cplusplus) +# include <stddef.h> +# if defined(__cplusplus) extern "C" { -#endif +# endif /* Function types. */ -typedef int avl_comparison_func (const void *avl_a, const void *avl_b, - void *avl_param); -typedef void avl_item_func (void *avl_item, void *avl_param); -typedef void *avl_copy_func (void *avl_item, void *avl_param); + typedef int avl_comparison_func(const void *avl_a, const void *avl_b, + void *avl_param); + typedef void avl_item_func(void *avl_item, void *avl_param); + typedef void *avl_copy_func(void *avl_item, void *avl_param); -#ifndef LIBAVL_ALLOCATOR -#define LIBAVL_ALLOCATOR +# ifndef LIBAVL_ALLOCATOR +# define LIBAVL_ALLOCATOR /* Memory allocator. */ -struct libavl_allocator - { - void *(*libavl_malloc) (struct libavl_allocator *, size_t libavl_size); - void (*libavl_free) (struct libavl_allocator *, void *libavl_block); - }; -#endif + struct libavl_allocator { + void *(*libavl_malloc) (struct libavl_allocator *, size_t libavl_size); + void (*libavl_free) (struct libavl_allocator *, void *libavl_block); + }; +# endif /* Default memory allocator. */ -extern struct libavl_allocator avl_allocator_default; -void *avl_malloc (struct libavl_allocator *, size_t); -void avl_free (struct libavl_allocator *, void *); + extern struct libavl_allocator avl_allocator_default; + void *avl_malloc(struct libavl_allocator *, size_t); + void avl_free(struct libavl_allocator *, void *); /* Maximum AVL height. */ -#ifndef AVL_MAX_HEIGHT -#define AVL_MAX_HEIGHT 32 -#endif +# ifndef AVL_MAX_HEIGHT +# define AVL_MAX_HEIGHT 32 +# endif /* Tree data structure. */ -struct avl_table - { - struct avl_node *avl_root; /* Tree's root. */ - avl_comparison_func *avl_compare; /* Comparison function. */ - void *avl_param; /* Extra argument to |avl_compare|. */ - struct libavl_allocator *avl_alloc; /* Memory allocator. */ - size_t avl_count; /* Number of items in tree. */ - unsigned long avl_generation; /* Generation number. */ - }; + struct avl_table { + struct avl_node *avl_root; /* Tree's root. */ + avl_comparison_func *avl_compare; /* Comparison function. */ + void *avl_param; /* Extra argument to |avl_compare|. */ + struct libavl_allocator *avl_alloc; /* Memory allocator. */ + size_t avl_count; /* Number of items in tree. */ + unsigned long avl_generation; /* Generation number. */ + }; /* An AVL tree node. */ -struct avl_node - { - struct avl_node *avl_link[2]; /* Subtrees. */ - void *avl_data; /* Pointer to data. */ - signed char avl_balance; /* Balance factor. */ - }; + struct avl_node { + struct avl_node *avl_link[2]; /* Subtrees. */ + void *avl_data; /* Pointer to data. */ + signed char avl_balance; /* Balance factor. */ + }; /* AVL traverser structure. */ -struct avl_traverser - { - struct avl_table *avl_table; /* Tree being traversed. */ - struct avl_node *avl_node; /* Current node in tree. */ - struct avl_node *avl_stack[AVL_MAX_HEIGHT]; - /* All the nodes above |avl_node|. */ - size_t avl_height; /* Number of nodes in |avl_parent|. */ - unsigned long avl_generation; /* Generation number. */ - }; + struct avl_traverser { + struct avl_table *avl_table; /* Tree being traversed. */ + struct avl_node *avl_node; /* Current node in tree. */ + struct avl_node *avl_stack[AVL_MAX_HEIGHT]; + /* All the nodes above |avl_node|. */ + size_t avl_height; /* Number of nodes in |avl_parent|. */ + unsigned long avl_generation; /* Generation number. */ + }; /* Table functions. */ -struct avl_table *avl_create (avl_comparison_func *, void *, - struct libavl_allocator *); -struct avl_table *avl_copy (const struct avl_table *, avl_copy_func *, - avl_item_func *, struct libavl_allocator *); -void avl_destroy (struct avl_table *, avl_item_func *); -void **avl_probe (struct avl_table *, void *); -void *avl_insert (struct avl_table *, void *); -void *avl_replace (struct avl_table *, void *); -void *avl_delete (struct avl_table *, const void *); -void *avl_find (const struct avl_table *, const void *); -void avl_assert_insert (struct avl_table *, void *); -void *avl_assert_delete (struct avl_table *, void *); - -#define avl_count(table) ((size_t) (table)->avl_count) + struct avl_table *avl_create(avl_comparison_func *, void *, + struct libavl_allocator *); + struct avl_table *avl_copy(const struct avl_table *, avl_copy_func *, + avl_item_func *, struct libavl_allocator *); + void avl_destroy(struct avl_table *, avl_item_func *); + void **avl_probe(struct avl_table *, void *); + void *avl_insert(struct avl_table *, void *); + void *avl_replace(struct avl_table *, void *); + void *avl_delete(struct avl_table *, const void *); + void *avl_find(const struct avl_table *, const void *); + void avl_assert_insert(struct avl_table *, void *); + void *avl_assert_delete(struct avl_table *, void *); + +# define avl_count(table) ((size_t) (table)->avl_count) /* Table traverser functions. */ -void avl_t_init (struct avl_traverser *, struct avl_table *); -void *avl_t_first (struct avl_traverser *, struct avl_table *); -void *avl_t_last (struct avl_traverser *, struct avl_table *); -void *avl_t_find (struct avl_traverser *, struct avl_table *, void *); -void *avl_t_insert (struct avl_traverser *, struct avl_table *, void *); -void *avl_t_copy (struct avl_traverser *, const struct avl_traverser *); -void *avl_t_next (struct avl_traverser *); -void *avl_t_prev (struct avl_traverser *); -void *avl_t_cur (struct avl_traverser *); -void *avl_t_replace (struct avl_traverser *, void *); - -#if defined(__cplusplus) + void avl_t_init(struct avl_traverser *, struct avl_table *); + void *avl_t_first(struct avl_traverser *, struct avl_table *); + void *avl_t_last(struct avl_traverser *, struct avl_table *); + void *avl_t_find(struct avl_traverser *, struct avl_table *, void *); + void *avl_t_insert(struct avl_traverser *, struct avl_table *, void *); + void *avl_t_copy(struct avl_traverser *, const struct avl_traverser *); + void *avl_t_next(struct avl_traverser *); + void *avl_t_prev(struct avl_traverser *); + void *avl_t_cur(struct avl_traverser *); + void *avl_t_replace(struct avl_traverser *, void *); + +# if defined(__cplusplus) } -#endif - -#endif /* avl.h */ +# endif +#endif /* avl.h */ |