PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

search.h(0P)              POSIX Programmer's Manual             search.h(0P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       search.h — search tables

SYNOPSIS         top

       #include <search.h>

DESCRIPTION         top

       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 <search.h> header shall define the size_t type 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         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       sys_types.h(0p)

       The System Interfaces volume of POSIX.1‐2008, hcreate(3p),
       insque(3p), lsearch(3p), tdelete(3p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The Open
       Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
       applied.) 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.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the
       source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013                        search.h(0P)

Pages that refer to this page: hcreate(3p)insque(3p)lsearch(3p)tdelete(3p)