Having difficulty coming-up with what the prototype for my sub might look like. If coded as is (below), the sub works; the caller sends named parameters, the sub checks for useful data, does the caller's bidding.
A sample of things I've tried for prototypes are:
sub ConfigRead($ @ %);
sub ConfigRead(;$ @ %);
sub ConfigRead($ \@ \%);
sub ConfigRead(;$ \@ \%);
My actual code without the prototype resembles this:
#!/usr/bin/perl -w
use strict;
my @aFieldHeaders;
my %hFieldConfigs;
my $sConfigFile = 'mydata.csv';
ConfigRead(sFILE => $sConfigFile,
apHEAD => \@aFieldHeaders,
hpFIELDCONF => \%hFieldConfigs);
# my array and hash now have some cool stuff in 'em!
sub ConfigRead {
my %hArgs = (
sFILE => 'BAD', # lazy user alert! whine & die
apHEAD => 'BAD', # ^^^ see comment above
hpFIELDCONF => 'BAD', # by now you know the drill!
@_, # user demands come from here
);
# stick some cool stuff in their variables
}
Suggestions, solutions and/or winning lottery ticket numbers for Wednesday's drawing gratefully accepted!
-
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.
|