Hello fwp'ers,
Here's a golfish problem that I thought some people might enjoy:
What is the shortest way to test a variable for truth and then set its
value to false such that the truth test still succeeds?
For example, I have a global variable $a (given) that is somehow set
to true. I want to test it for truth and do something:
<snip>
$a = 1;
...
if( $a ) {
$a = 0;
do_something();
}
## and now $a is false
...
</snip>
You can't do this:
if( $a = $a ? 0 : $a ) {
do_something();
...
}
because the whole expression becomes false when $a is assigned 0.
My shortest try is this (10 characters w/o whitespace):
if( $a%2 .. $a-- ) {
do_something();
...
}
Assuming warnings and stricture, can anyone find a shorter
test/assignment? It doesn't have to be numeric (i.e., bit strings or
any true/false values will work).
Good luck!
Scott
--
Scott Wiersdorf
[EMAIL PROTECTED]
