What is the range of a double in Objective-C?

Question

I have a program where I am calculating large distances. I then convert the distance (a double) using stringfromnumber to get the commas inserted (i.e. 1,234,567). This works

Answer 1

You can check you're own float.h for DBL_MAX to find out. I got a value of 1.797693e+308 from:

#include 
#include 

int main ( void ) {
    printf("Max double %e \n", DBL_MAX);
    return 0;
}