Thread: Using "\r" with printf?

Hi!

I'm trying to print 4 lines with dinamic values without using "\n". Everyting works just fine when I use only one line. And the code is:

Code:

while (1){
	num1=rand()%100;
	num2=rand()%100;
	num3=rand()%100;
	num4=rand()%100;
	printing(num1,num2,num3,num4);
	usleep(500000);
}

void printing(int num1,int num2,int num3,int num4){
	
	fprintf(stderr,"\rActPos:\t%d\t%d\t%d\t%d",num1,num2,num3,num4);
	fprintf(stderr,"\rOptPos:\t%d\t%d\t%d\t%d",num1,num2,num3,num4);
	fprintf(stderr,"\rTrgPos:\t%d\t%d\t%d\t%d",num1,num2,num3,num4);
	fprintf(stderr,"\rFlwErr:\t%d\t%d\t%d\t%d",num1,num2,num3,num4);

}

The way it is now it'll only print the last line an "update" it with new values.

If i try to use "\n" before every "\r" the result is not what i expect because i only want to see 4 line in the command prompt with refreshed values every 0.5 seconds.

What is the best way to accomplish my objective?