Manual Reference Pages - BSEARCH (3)
- binary search of a sorted table
bsearch const void *key const void *base size_t nmemb size_t size int (*compar) (const void *, const void *)
function searches an array of
objects, the initial member of which is
pointed to by
for a member that matches the object pointed to by
The size of each member of the array is specified by
The contents of the array should be in ascending sorted order according
to the comparison function referenced by
is expected to have
two arguments which point to the
object and to an array member, in that order, and should return an integer
less than, equal to, or greater than zero if the
object is found, respectively, to be less than, to match, or be
greater than the array member.
sample function in
for a comparison function that is also compatible with
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.
function conforms to
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