As you know, the error variable $! has both a numeric and a string value, depending on which context it's used in (that is, the numeric value may be 2, while the string value is "No such file or directory"). I'd like to make error variables like this (assigning to $! doesn't work right). How can I do it? I tried the following, which didn't work: #!/usr/bin/perl -w
use strict;
use Inline 'C';
my $v;
set_both($v, "I'm a string too!", 123);
print $v+0, " $v\n";
__END__
__C__
void set_both(SV* var, char* str, int i)
{
sv_setpv(var, str);
sv_setiv(var, i);
}
-
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.
|