bytes_to_short(short_to_bytes($x)) is not equal to
$x on all platforms. Use
v instead. (Using "L" to convert shorts is silly anyway.)
Furthermore, "short" is a very ambiguous term. It doesn't necessarily mean 16 bits, and it definitely doesn't imply unsigned (as your code expects).
sub uint16_to_bytes {
my ($int) = @_;
return unpack('C2', pack('v', $int));
}
sub bytes_to_uint16 {
my ($lo, $hi) = @_;
return unpack('v', pack('C2', $lo, $hi));
}
sub int16_to_bytes {
my ($int) = @_;
return unpack('C2', pack('v', unpack('S', pack('s', $int))));
}
sub bytes_to_int16 {
my ($lo, $hi) = @_;
return unpack('s', pack('S', unpack('v', pack('C2', $lo, $hi))));
}
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.