NAME
search.h - search tables
SYNOPSIS
#include <search.h>
DESCRIPTION
The <search.h> header shall define the ENTRY type for structure entry
which shall include the following members:
char *key
void *data
and shall define ACTION and VISIT as enumeration data types through
type definitions as follows:
enum { FIND, ENTER } ACTION;
enum { preorder, postorder, endorder, leaf } VISIT;
The size_t type shall be defined as described in <sys/types.h> .
The following shall be declared as functions and may also be defined as
macros. Function prototypes shall be provided.
int hcreate(size_t);
void hdestroy(void);
ENTRY *hsearch(ENTRY, ACTION);
void insque(void *, void *);
void *lfind(const void *, const void *, size_t *,
size_t, int (*)(const void *, const void *));
void *lsearch(const void *, void *, size_t *,
size_t, int (*)(const void *, const void *));
void remque(void *);
void *tdelete(const void *restrict, void **restrict,
int(*)(const void *, const void *));
void *tfind(const void *, void *const *,
int(*)(const void *, const void *));
void *tsearch(const void *, void **,
int(*)(const void *, const void *));
void twalk(const void *,
void (*)(const void *, VISIT, int ));
The following sections are informative.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
<sys/types.h> , the System Interfaces volume of IEEE Std 1003.1-2001,
hcreate(), insque(), lsearch(), remque(), tsearch()
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .