import std.random;
import std.stdio;
import core.stdc.stdlib : bsearch;

int[1000] a;

extern(C)
int compareints(in void * a, in void * b)
{
	return *cast(int*)a - *cast(int*)b;
}

void main()
{
	foreach (ref n; a)
		n = rand()%1000;
	a.sort;

	foreach (iter; 0..100_000_000)
	{
		int key = rand()%1000;
		bsearch(&key, a.ptr, a.length, a[0].sizeof, &compareints);
	}
}