11-27-2012
Quote:
Originally Posted by
Raj 89
I have a problem with this code. I am using a gcc compiler and when i compile and execute this code i am getting a seg fault. I am just assigning two variables, name_1 as pointer and name_2 as string.
Yes, see, they're both pointers as far as the computer's concerned.
name_2 ends up being a pointer that points to 20 bytes of memory that can hold a string.
name_1 is a pointer that points nowhere in particular at all, and odds are good it will end up pointing at invalid memory.
Setting it to NULL will
guarantee it points to invalid memory.
C doesn't give you memory unless you ask for it.
This User Gave Thanks to Corona688 For This Post:
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LEARN ABOUT DEBIAN
class::makemethods::basic
MakeMethods::Basic(3pm) User Contributed Perl Documentation MakeMethods::Basic(3pm)
NAME
Class::MakeMethods::Basic - Make really simple methods
SYNOPSIS
package MyObject;
use Class::MakeMethods::Basic::Hash (
'new' => [ 'new' ],
'scalar' => [ 'foo', 'bar' ]
);
package main;
my $obj = MyObject->new( foo => "Foozle", bar => "Bozzle" );
print $obj->foo();
$obj->bar("Barbados");
DESCRIPTION
This document describes the various subclasses of Class::MakeMethods included under the Basic::* namespace, and the method types each one
provides.
The Basic subclasses provide stripped-down method-generation implementations.
Subroutines are generated as closures bound to each method name.
Calling Conventions
When you "use" a subclass of this package, the method declarations you provide as arguments cause subroutines to be generated and installed
in your module. You can also omit the arguments to "use" and instead make methods at runtime by passing the declarations to a subsequent
call to "make()".
You may include any number of declarations in each call to "use" or "make()". If methods with the same name already exist, earlier calls to
"use" or "make()" win over later ones, but within each call, later declarations superceed earlier ones.
You can install methods in a different package by passing "-TargetClass => package" as your first arguments to "use" or "make".
See "USAGE" in Class::MakeMethods for more details.
Declaration Syntax
The following types of declarations are supported:
o generator_type => 'method_name'
o generator_type => 'name_1 name_2...'
o generator_type => [ 'name_1', 'name_2', ...]
For a list of the supported values of generator_type, see "BASIC CLASSES" in Class::MakeMethods::Docs::Catalog, or the documentation for
each subclass.
For each method name you provide, a subroutine of the indicated type will be generated and installed under that name in your module.
Method names should start with a letter, followed by zero or more letters, numbers, or underscores.
SEE ALSO
See Class::MakeMethods for general information about this distribution.
For distribution, installation, support, copyright and license information, see Class::MakeMethods::Docs::ReadMe.
perl v5.10.1 2004-09-06 MakeMethods::Basic(3pm)