#include <float.h>
#include <stdio.h>

#define PRINT(var, format) printf(#var " = " format "\n", var)

// https://en.cppreference.com/w/c/language/arithmetic_types#Real_floating_types
// https://en.cppreference.com/w/c/types/limits#Limits_of_floating-point_types
int main(void) {
    PRINT(FLT_EPSILON, "%.9g");
    PRINT(DBL_EPSILON, "%.16lg");

    PRINT(FLT_MAX, "%.8g");
    PRINT(DBL_MAX, "%.17lg");

    return 0;
}