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Syntax#include <cstdlib> void* bsearch( const void *key, const void *base, size_t num, size_t size, int (*compare)(const void *, const void *));
The function bsearch() performs a search within a sorted array, returning a pointer to the element in question or NULL.
*key refers to an object that matches an item searched within *base. This array contains num elements, each of size size.
The compare function accepts two pointers to the object within the array - which need to first be cast to the object type being examined. The function returns -1 if the first parameter should be before the second, 1 if the first parameter is after, or 0 if the object matches.
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