Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??

If the input file contains only a number -9999998, your code will report that, but if that number is -9999999 or below, it reports "No line with number found."

Personally, I use undef instead of a magic number; my usual pattern is the following (expanded slightly for clarity):

my $max; for my $n ( qw/ 6 3 1 4 7 2 10 5 8 9 / ) { if ( !defined $max || $n > $max ) { $max = $n; } } print "Max: ", $max//"none", "\n";

Update: The suggestion to use undef as a special value actually applies to several other posts in this thread as well, at least here and here. OTOH, your code is the only one that uses a well-established module to find the numbers, there are several posts that simply use the original \d+, which of course will cause the code to think that -99 is larger than 98.


In reply to Re^2: Print the line with the largest number from standard input (updated) by haukex
in thread Print the line with the largest number from standard input by SSSufe

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (5)
As of 2024-03-29 11:02 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found