2 * Perform some basic arithmetic with long double, as a sanity check.
3 * With small integral numbers, we can cross-check with integers.
12 for (i
= 1; i
< 5; i
++) {
13 for (j
= 1; j
< 5; j
++) {
14 long double la
= (long double)i
+ j
;
15 long double lm
= (long double)i
* j
;
16 long double ls
= (long double)i
- j
;