1. Why is it important for a developer to know the limitations of an optimizing compiler? Why, in the following code, is the compiler unable to move the call to strlen out of the loop? void upper(char...

1. Why is it important for a developer to know the limitations of an optimizing compiler?

Why, in the following code, is the compiler unable to move the call to strlen out of the loop?

          void upper(char *s) {

               for (long i = 0; i < strlen(s);="" i++)="">

                    if (s[i] >= 'a' && s[i] <=>

                         s[i] += ('Z' - 'z');

               }

          }