I was just wondering if there is a way to tell if something is expected back from a function call. Let me demonstrate:
# CASE 1
my $value = do_something(...);
# CASE 2
do_something(...)
So CASE 1 is what i mean by the call is expecting something back, and CASE 2 is not expecting anything back.
I know of no way to detect this - wantarray() tests for something different. There are probably a number of convoluted subtleties about why this cannot be done, but i have some use for it - mainly for code transition debugging, but i could see other uses for it...
Thanks much.
-
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.
|