1 .\" Copyright 1995 Jim Van Zandt <jrv@vanzandt.mv.com>
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25 .\" Corrected prototype and include, aeb, 990927
26 .TH LSEARCH 3 2017-09-15 "GNU" "Linux Programmer's Manual"
28 lfind, lsearch \- linear search of an array
31 .B #include <search.h>
33 .BI "void *lfind(const void *" key ", const void *" base ", size_t *" nmemb ,
34 .BI " size_t " size ", int(*" compar ")(const void *, const void *));"
36 .BI "void *lsearch(const void *" key ", void *" base ", size_t *" nmemb ,
37 .BI " size_t " size ", int(*" compar ")(const void *, const void *));"
43 perform a linear search for
52 The comparison function referenced by
54 is expected to have two arguments which point to the
56 object and to an array member, in that order, and which
59 object matches the array member, and
64 does not find a matching element, then the
66 object is inserted at the end of the table, and
70 In particular, one should know that a matching element
71 exists, or that more room is available.
74 returns a pointer to a matching member of the array, or
75 NULL if no match is found.
78 a matching member of the array, or to the newly added member if no
81 For an explanation of the terms used in this section, see
87 Interface Attribute Value
91 T} Thread safety MT-Safe
95 POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.
96 Present in libc since libc-4.6.27.
98 The naming is unfortunate.