C++ Pocket Reference by Kyle Loudon

Author:Kyle Loudon [Kyle Loudon]
Language: eng
Format: epub, mobi
Tags: COMPUTERS / Programming Languages / C++
ISBN: 9781449378943
Publisher: O'Reilly Media
Published: 2009-06-29T16:00:00+00:00

Accessing Members

To access a member of an object, you use the dot form of the selection operator (.). For example, the following assigns 500 to the data member i of an object called object:

object.i = 500;

The following invokes the member function f of object, passing it two arguments, a and b:

object.f(a, b);

To access a member of an object using a pointer to the object, you use the arrow form of selection (->). For example, the following assigns 500 to the data member i of an object referenced by objptr:

objptr->i = 500;

The following invokes the member function f of the object referenced by objptr passing it two arguments, a and b:

objptr->f(a, b);

To access a member from within the class in which it is defined, or from within a derived class (see Inheritance), usually you specify only the name of the member, unless accessing the member through the this pointer. By whatever means you access a member, the compiler either allows or denies access based on the member's access level (see Access Levels for Members).

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