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C++ : Base class member function not accessible from derived class
Post 302910020 by chacko193 on Tuesday 22nd of July 2014 05:05:28 AM
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Hi friends,
The derived class cannot access the base class's variables in my program. You can have a look at my code, I am actually using class templates.
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There is base class B, and two derived classes D1 and D2 derived from Base. Base class B, have two data members ( public or protected or private or if any). D1 should inherit both these data members, and D2 should be deriving only one member from Base class. Is this kind of design possible without... (1 Reply)
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Why, here the size of class 'Derived' is 8 ?
class Base1
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public:
virtual void f() { }
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class Derived : public Base1, Base2
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LEARN ABOUT SUSE
mail::spf::base
Mail::SPF::Base(3) User Contributed Perl Documentation Mail::SPF::Base(3) NAME
Mail::SPF::Base - Base class for Mail::SPF classes SYNOPSIS
use base 'Mail::SPF::Base'; sub new { my ($class, @options) = @_; my $self = $class->SUPER::new(@options); ... return $self; } DESCRIPTION
Mail::SPF::Base is a common base class for all Mail::SPF classes. Constructor The following constructor is provided: new(%options): returns Mail::SPF::Base Creates a new object of the class on which the constructor was invoked. The provided options are stored as key/value pairs in the new object. The "new" constructor may also be called on an object, in which case the object is cloned. Any options provided override those from the old object. There are no common options defined in Mail::SPF::Base. Class methods The following class methods are provided: class: returns string Returns the class name of the class or object on which it is invoked. Class methods The following class methods are provided: make_accessor($name, $readonly): returns code-ref Creates an accessor method in the class on which it is invoked. The accessor has the given name and accesses the object field of the same name. If $readonly is true, the accessor is made read-only. Instance methods There are no common instance methods defined in Mail::SPF::Base. SEE ALSO
Mail::SPF For availability, support, and license information, see the README file included with Mail::SPF. AUTHORS
Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org> perl v5.12.1 2010-07-05 Mail::SPF::Base(3)