// gcc fl8test.c -O2 -o fl8test
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>

union fu {
	float f;
	uint32_t u;
};

uint32_t until = 2048;
uint32_t shift = 24;
uint32_t groupcnt = 0;
int main (int argc, char **argv) {
	if(argc > 1) {
		const char* arg = argv[1];
		until = atoi(arg);
	}
	if(argc > 2) {
		const char* arg = argv[2];
		shift = atoi(arg);
	}

	uint32_t prev = (uint32_t) -1;
	for(uint32_t i = 0; i < until; ++i) {
		union fu fui;
		fui.f = (float) i;
		fui.u = (fui.u >> shift);

		if(fui.u != prev) {
			printf("%d -> %d\n", i, fui.u);
			++groupcnt;
		}
		prev = fui.u;
	}

	printf("Until %d, there are %d groups!\n", until, groupcnt);
}