BSEARCH
Section: C Library Functions (3)
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BSD mandoc
NAME
bsearch
- binary search of a sorted table
SYNOPSIS
Fd #include <stdlib.h>
Ft void *
Fn bsearch const void *key const void *base size_t nmemb size_t size int (*compar) (const void *, const void *)
DESCRIPTION
The
Fn bsearch
function searches an array of
Fa nmemb
objects, the initial member of which is
pointed to by
Fa base ,
for a member that matches the object pointed to by
Fa key .
The size of each member of the array is specified by
Fa size .
The contents of the array should be in ascending sorted order according
to the comparison function referenced by
Fa compar .
The
Fa compar
routine
is expected to have two
two arguments which point to the
Fa key
object and to an array member, in that order, and should return an integer
less than, equal to, or greater than zero if the
Fa key
object is found, respectively, to be less than, to match, or be
greater than the array member.
RETURN VALUES
The
Fn bsearch
function returns a pointer to a matching member of the array, or a null
pointer if no match is found.
If two members compare as equal, which member is matched is unspecified.
SEE ALSO
db(3),
lsearch(3),
qsort(3),
STANDARDS
The
Fn bsearch
function conforms to
St -ansiC .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- SEE ALSO
-
- STANDARDS
-
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Time: 21:44:10 GMT, August 05, 2022