I couldn't understand what exactly "W" do.
my $x = "this is my string";
print unpack("W",substr($x,0,1));
Prints: 116
my $x = "this is my string";
print unpack("W",$x);
Still Prints: 116
views:
66answers:
1
+6
A:
From perldoc: W An unsigned char value (can be greater than 255).
Both of your examples return the same thing because your unpack argument "W" only consumes one character. Try "W*" instead.
Eric Strom
2010-08-16 06:26:23
Yeah. You are right but why 116? ASCII value of "t" aint that.
Shubham
2010-08-16 06:30:27
`ord 't' == 116` and `The ASCII code for capital T is 84 and for lowercase t is 116` - http://en.wikipedia.org/wiki/T
Eric Strom
2010-08-16 06:32:46
Shubham: `man ascii` works on any unix system. It's the fastest way of checking hex/octal/decimal values of ascii characters.
Ether
2010-08-16 18:54:28