Re: basic BASIC question

On 1/31/2025 1:35 PM, Arne Vajhøj wrote:

On 1/31/2025 1:28 PM, Simon Clubley wrote:

On 2025-01-31, Arne Vajhøj <arne@vajhoej.dk> wrote:

Is it common to use:
>
declare integer constant TRUE = -1
declare integer constant FALSE = 0

>
Oh goody. The "good" old days, when TRUE did not equal TRUE, are back. :-)

 Some old some new.
 C and VMS Basic are old.
 But some newer script languages also have a
"flexible approach" to true/false.
 $ type bool.php
<?php
 function test($expr) {
     echo ($expr ? 'true' : 'false') . "\r\n";
}
 test(true);
test(false);
test(1);
test(0);
test(-1);
test("X");
test("");
test(null);
 ?>
$ php bool.php
true
false
true
false
true
true
false
false

$ type bool.py
def test(expr):
     print("true" if expr else "false")
test(True)
test(False)
test(1)
test(0)
test(-1)
test("X")
test("")
test(None)
$ python bool.py
true
false
true
false
true
true
false
false
Arne