Hi,
I am encountering a segmentation fault while carrying out some operation in side a foreach loop. The foreach loop is iterating on an array having 2 elements. But if I remove the foreach loop and perform the operations on one of the elements of the array, then no seg fault is happening.
is there any cpan module to debug what is causing the segmentation fault ? Or how can I investigate the reason ?
Apparently the code is pretty simple , which is just running some foreach loops inside one outer foreach loop. Even I could point out which foreach loop is responsible and can get away with the problem by commenting out that foreach block. But what are the ways to find out the cause and how can that be handled? If anyone can cite some possible reasons to look out for which a perl program may get seg fault, will be helpful.
# The code looks something like
foreach my $elem (@$arrayRef)
{
foreach ()
{
foreach ()
{
}
}
# commenting out this below loop avoids the seg fault
foreach ()
{
}
}
Or else , if I comment out the outermost foreach and carryout the operation on a single element($$arrayRef[0]) of the @$arrayRef, the seg fault is not happening.
-
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.
|