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Add POSIX binary tree search API.

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* mingwex/tfind.c: New file.
	* mingwex/tdelete.c: New file.
	* mingwex/tsearch.c: New file.
	* mingwex/twalk.c: New file.
	* mingwex/Makefile.in (DISTFILES): Add tsearch.c twalk.c tdelete.c tfind.c.
	* mingwex/Makefile.in (POSIX_OBJS): Add tsearch.o twalk.o tdelete.o tfind.o.
	* include/search.h (tfind): Declare.
	(tdelete): Declare.
	(tsearch): Declare.
	(twalk): Declare.
	(ENTRY): Define.
	(ACTION): Define.
	(VISIT): Define.
	(node_t): Define, on condition of _SEARCH_PRIVATE.
This commit is contained in:
Danny Smith
2007-06-22 10:09:20 +00:00
parent 3d7e738f72
commit e54e4d47f1
7 changed files with 269 additions and 4 deletions
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42
winsup/mingw/include/search.h
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@ -47,6 +47,48 @@ _CRTIMP void* __cdecl _lfind (const void*, const void*, unsigned int*,
unsigned int, int (*)(const void*, const void*));
_CRTIMP void* __cdecl _lsearch (const void*, void*, unsigned int*, unsigned int,
int (*)(const void*, const void*));
/*
Documentation for these POSIX definitions and prototypes can be found in
The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition.
eg: http://www.opengroup.org/onlinepubs/009695399/functions/twalk.html
*/
typedef struct entry {
char *key;
void *data;
} ENTRY;
typedef enum {
FIND,
ENTER
} ACTION;
typedef enum {
preorder,
postorder,
endorder,
leaf
} VISIT;
#ifdef _SEARCH_PRIVATE
typedef struct node {
char *key;
struct node *llink, *rlink;
} node_t;
#endif
void * __cdecl tdelete (const void * __restrict__, void ** __restrict__,
int (*)(const void *, const void *))
__MINGW_ATTRIB_NONNULL (1) __MINGW_ATTRIB_NONNULL (3);
void * __cdecl tfind (const void *, void * const *,
int (*)(const void *, const void *))
__MINGW_ATTRIB_NONNULL (1) __MINGW_ATTRIB_NONNULL (3);
void * __cdecl tsearch (const void *, void **,
int (*)(const void *, const void *))
__MINGW_ATTRIB_NONNULL (1) __MINGW_ATTRIB_NONNULL (3);
void __cdecl twalk (const void *, void (*)(const void *, VISIT, int));
#ifndef _NO_OLDNAMES
_CRTIMP void* __cdecl lfind (const void*, const void*, unsigned int*,