Hi,
I'm having some problems with the use of constants. I want
to know if the way perl handle constants are similar the way
C handles defines (#define CONST 10, for example).
This code shows my problem:
#!/usr/bin/perl
use strict;
use warnings;
use constant CONST1=>10;
use constant CONST2=>12;
my %var=(
CONST1=>'test1',
CONST2=>'test2',
);
print $var{CONST1}."\n";
print $var{10}."\n";
It prints:
bash-2.05b$ perl test.pl
test1
Use of uninitialized value in concatenation (.) or string at test.pl l
+ine 13.
Isn't that supposed to print "test1" in the second print ?
thanks,
DBC
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.