I'm trying to write a programme to convert lowercase to uppercase,


I wrote this myself(phew! wasn't easy)


But the problem is, after a space it doesn't convert to uppercase anymore, I've
tried some logic to fix it, (thats why the if statement is there) but it doesn't
work

I got this from the textbook I'm reading. it has the same problem too.






By the way, the compiler (or software) I use is SILVERFROST(/PLATO);

The way you wrote the 'for' statement is
ingenious, but there's the problem, actually: the
'for' loop executes as long as the condition in
the second part between the parentheses holds.
You wrote: "loop as long as the i-th character in
the string is a lower-case letter." As soon as it
encounters a space (or any other character outside
that range, for that matter), it exits the loop.

What you really want is to loop through *all* the
characters in the string, since you don't know a
priori where the last lower-case character is. In
other words, you want to loop with 'i' varying
from the first index in the string to the last one
(which not necessarily will be 80).