signal-float-test.c

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
double a, b, c;

void test(int sig)
{
	printf("%f\n", a * b + c);
}

int main(int argc, char *argv[])
{
	a = argc;
	b = atof(argv[1]);
	c = atof(argv[2]);
	signal(SIGUSR1, test);

	for (int i = 1; i <= 1000; i++) {
		printf("%f %f %f\n", a, b, c);
		a += 1;
		b *= i;
		b -= 1;
		sleep(1);
	}
	return 0;
}