Jim Meyering wrote:
> 0.1L == (long double) 0.1
> evaluates to true.
OK, so let's try a runtime test instead of a compile-time test.
What does this program give?
#include <stdio.h>
#include <stdlib.h>
long double a = 4.0L;
long double b = 5.0L;
int main()
{
long double x = a / b;
long double y = strtold ("0.8", NULL);
printf ("%d\n", x == y);
printf ("x = %04X%04X%04X\n", ((unsigned int *) &x)[2],
((unsigned int *) &x)[1], ((unsigned int *) &x)[0]);
printf ("y = %04X%04X%04X\n", ((unsigned int *) &y)[2],
((unsigned int *) &y)[1], ((unsigned int *) &y)[0]);
return 0;
}
