1search.h(0P) POSIX Programmer's Manual search.h(0P)
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6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
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13 search.h — search tables
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16 #include <search.h>
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19 The <search.h> header shall define the ENTRY type for structure entry
20 which shall include the following members:
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22 char *key
23 void *data
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25 and shall define ACTION and VISIT as enumeration data types through
26 type definitions as follows:
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28 enum { FIND, ENTER } ACTION;
29 enum { preorder, postorder, endorder, leaf } VISIT;
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31 The <search.h> header shall define the size_t type as described in
32 <sys/types.h>.
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34 The following shall be declared as functions and may also be defined as
35 macros. Function prototypes shall be provided.
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37 int hcreate(size_t);
38 void hdestroy(void);
39 ENTRY *hsearch(ENTRY, ACTION);
40 void insque(void *, void *);
41 void *lfind(const void *, const void *, size_t *,
42 size_t, int (*)(const void *, const void *));
43 void *lsearch(const void *, void *, size_t *,
44 size_t, int (*)(const void *, const void *));
45 void remque(void *);
46 void *tdelete(const void *restrict, void **restrict,
47 int(*)(const void *, const void *));
48 void *tfind(const void *, void *const *,
49 int(*)(const void *, const void *));
50 void *tsearch(const void *, void **,
51 int(*)(const void *, const void *));
52 void twalk(const void *,
53 void (*)(const void *, VISIT, int ));
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55 The following sections are informative.
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58 None.
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61 None.
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64 None.
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67 <sys_types.h>
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69 The System Interfaces volume of POSIX.1‐2008, hcreate(), insque(),
70 lsearch(), tdelete()
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73 Portions of this text are reprinted and reproduced in electronic form
74 from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
75 -- Portable Operating System Interface (POSIX), The Open Group Base
76 Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
77 cal and Electronics Engineers, Inc and The Open Group. (This is
78 POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
79 event of any discrepancy between this version and the original IEEE and
80 The Open Group Standard, the original IEEE and The Open Group Standard
81 is the referee document. The original Standard can be obtained online
82 at http://www.unix.org/online.html .
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84 Any typographical or formatting errors that appear in this page are
85 most likely to have been introduced during the conversion of the source
86 files to man page format. To report such errors, see https://www.ker‐
87 nel.org/doc/man-pages/reporting_bugs.html .
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91IEEE/The Open Group 2013 search.h(0P)