Question and Answer Database FAQ1384C.txt C++ and Pascal Category :C/C++ Language Issues Platform :All Product :C++Builder 1.x Question: I am C++ programmer and not familiar with pascal. Can you give me a few pointers that will help? Answer: Here are some pointers: — Function ( procedure ) calls don't require parenthesis. — When you see '.' in pascal, you probably need the '->' in C/C++. Form2.Show; (* Opascal *) Form2->Show(); // C++ — Don't forget assignment operator is a colon equals combination ':='. — Create and CreateNew are Object Pascal's constructors. — The inherited statement is used to tell the compiler not to call the function named in the current class, but to use the one in the next class higher in the hierarchy. If not, there continue searching up the hierarchy. This is the same as the super keyword in Java or Smalltalk. — Bar = class(Foo) in Opascal says a variable of type class Bar inheirits compatibliliy with class Foo. type Shape = class . . . end; Rectangle = class(Shape) . . . end; Square = class(Rectangle) . . . end; Circle = class(Shape) . . . end; In example above a value of Rectangle can be assigned to variables of type Rectangle, Shape, or TObject ( base of all VCL classes.) At runtime a variable of type Shape can reference an instance of Shape, Rectangle, Square, or Circle or any other instance or a class derived from Shape. 7/2/98 10:32:32 AM
Last Modified: 01-SEP-99