Re: Bitwise Operator Error

Your hexadecimal number in $testString needs to ~~begin with 0x~~ be properly interpreted as hexadecimal. Then it will work. You can also simplify your white-space removal. All together, here is one way to get where you want to go:

$testString =~ s/\s+//g;
[download]

$testString =~ s/^/0x/; $maskResult = $testString & 400000000000000000000000;
[download]
$maskResult = hex( $testString ) & 0x400000000000000000000000;

Updated: Need to use hex and need to have mask as hex string.

Updated 2: I see ikegami has also pointed out my error(s) corrected above.

Updated 3: and ikegami has also noted the need for Math::BigInt here.

Comment on Re: Bitwise Operator Error Select or Download Code

Replies are listed 'Best First'.
Re^2: Bitwise Operator Error by ikegami (Patriarch) on Oct 02, 2008 at 19:18 UTC
That's wrong. `>perl -we"print 0+'0x0001'" Argument "0x0001" isn't numeric in addition (+) at -e line 1. 0` [download] See my reply to the OP for details	[reply] [d/l]
Re^2: Bitwise Operator Error by ravishi (Acolyte) on Oct 02, 2008 at 19:05 UTC
Thanks for the help but I just tried what you suggested and it doesn't seem to work. It outputs a 0 which is correct but I get a warning saying that it isn't numeric. I then changed the first bit of the original string to an F to test if I get an output of 1, and I still get a 0.	[reply]