docs:c_basics
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docs:c_basics [2009/02/16 08:18] gibson opr |
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| Some C++ vocabulary | Some C++ vocabulary | ||
| - | * a user-defined type is called a **class**. %%Matrix%% is a class. Classes are roughly like fundamental types. | + | * a user-defined type is called a **class**; e.g. %%Matrix%% is a class. Classes are roughly like fundamental types. |
| - | * variables of user-defined types are often called **objects**. %%A%% is an object of type %%Matrix%%. | + | * variables of user-defined types are often called **objects**, e.g. %%A%% is an object of type %%Matrix%%. |
| - | * objects are initialized or **constructed** by **constructors** %%Matrix A(M,N)%% constructs an object named %%x%%. The %%(M,N)%% is an argument list for the %%Matrix%% constructor, in this case the row and columns dimensions. Constructors typically allocate memory and assign initial values to the object's internal data structures. | + | * objects are initialized or **constructed** by **constructors**, e.g. the statement %%Matrix A(M,N);%% constructs an %%M x N%% Matrix object named %%x%%. The %%(M,N)%% is an argument list for the %%Matrix%% constructor, in this case the row and columns dimensions. Constructors typically allocate memory and assign initial values to the object's internal data structures. |
| - | * Classes have **member functions** and **operators**. %%A*x%% calls the %%Matrix, Vector%% multiplication operation, and %%y.dim()%% calls the %%dim()%% member function of object %%y%%. | + | * Classes have **member functions** and **operators**. %%A*x%% calls the %%Matrix, Vector%% multiplication operator, and %%y.dim()%% calls the %%dim()%% member function of object %%y%%. |
| * %%cout << y << endl%% prints object %%y%% to standard output followed by a new line. | * %%cout << y << endl%% prints object %%y%% to standard output followed by a new line. | ||
docs/c_basics.1234801088.txt.gz · Last modified: 2009/02/16 08:18 by gibson
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