along the perl.h header file installed on you system, you will find config.h (for instance, in my Debian box it is at /usr/lib/perl/5.10.0/CORE/config.h) containing all the information captured by Configure when perl was built.
Specifically it has information about the size of most common C integer types. For instance:
#define INTSIZE 4 /**/
#define LONGSIZE 4 /**/
#define SHORTSIZE 2 /**/
BTW, the same information is available on the Perl side using the Config module.
You could also explicitly discard the upper bits from a possible 64bits word using...
v &= 0xffffffff;
and hope that the optimizer removes the superfluous instructions from the final code on 32 bit architectures
-
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.
|