Union example

union.c

#include <stdio.h>
#include <stdlib.h>

/********************
Ausgabe:
Q1 Count: 4
Q2 Weight: 1.50
Q3 Volume: 2.000000
*********************/

int main(int argc, char const *argv[])
{
	
	typedef union 
	{
		short count;
		float weight;
		float volume;
	} quantity;

	quantity q1 = {4}; // means count
	quantity q2 = {.weight=1.5};
	quantity q3 = {.volume=2.0};

	fprintf(stdout, "Q1 Count: %d\n", q1.count);
	fprintf(stdout, "Q2 Weight: %.2f\n", q2.weight); // 2 nackommastellen
	fprintf(stdout, "Q3 Volume: %f\n", q3.volume);

	return EXIT_SUCCESS;
}