DEV/DEV1.1/TP13/conversion2.c

#include <stdlib.h>
#include <stdio.h>
 
int main(void) {
	long long int n = (4614256656552045848LL);
	double* p = (double*) &n;
	*p = *p*2;
	printf("π = %f\n", *p);
	return EXIT_SUCCESS;
}