Free Pascal Programmer’s Guide Programmer’s Guide for Free Pascal, Version 3.2.2 Document version 3.2.2 May 2021 Michaël Van Canneyt Contents 1 Compiler directives 14 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 186 12 LIST OF TABLES About this document This is the programmer’s manual for Free Pascal. It describes some of the peculiarities of the Free Pascal compiler, reference counted. CORBA Interfaces will not have a parent and are not reference counted (so the programmer is responsible for bookkeeping). Corba interfaces are identified by a simple string so they are

valid under all defined conditions ● The compiler must be able to prove that it is so – Not “the programmer knows that it is so” external void g(); int f(int*& p) { if (!p) g(); // Not optimized return

in the text. More information about the various modes can be found in the user’s manual and the programmer’s manual. Earlier versions of this document also contained the reference documentation of the in the text. More information about the various modes can be found in the user’s manual and the programmer’s manual. 11 Chapter 1 Pascal Tokens Tokens are the basic lexical building blocks of source language. They cannot be changed or redefined. identifiers These are names of symbols that the programmer defines. They can be changed and re-used. They are subject to the scope rules of the language.

example, derived instances for datatypes in the class Eq define the operations == and /=, freeing the programmer from the need to define them. The only classes in the Prelude for which derived instances are the same way as g1 even though the occurrences of > and show are in the definition of g1. If the programmer supplies explicit type signatures for more than one variable in a declaration group, the contexts but without Rule 1 it might be computed twice, once at each of two different overloadings. If the programmer does actually wish the computation to be repeated, an explicit type signature may be added: let

(c) Timur Doumler | @timur_audio | https://timur.audio P2900 Contracts allow the programmer to express expectations about program state, and optionally verify that those expectations (c) Timur Doumler | @timur_audio | https://timur.audio P2900 Contracts allow the programmer to express expectations about program state, and optionally verify that those expectations (c) Timur Doumler | @timur_audio | https://timur.audio P2900 Contracts allow the programmer to express expectations about program state, and optionally verify that those expectations

things. For a description of the possibilities and the inner workings of the compiler, see the Programmer’s Guide. In the appendices of this document you will find lists of reserved words and compiler unit. For more advanced uses of the compiler, see the section on configuring the compiler, and the Programmer’s Guide. The examples in this section suppose that you have an fpc.cfg which is set up correctly xxx. 5.1.4 Options controlling the kind of output. For more information on these options, see Programmer’s Guide. -a Do not delete the assembler files (not applicable when using the internal assembler)

For Company it’s necessary to create • IT ◦ Backend Developer ◦ Frontend Developer ◦ Senior Programmer ◦ Senior Business Analyst ◦ Scrum Master ◦ Product Owner • Marketing ◦ Web Designer ◦ Designer 2000$/month 2. FRONT_DEV, Frontend Developer, with standard rate 2300$/month 3. SENIOR_PROGRAMMER, Senior Programmer 4. SENIOR_BIZ_ANALYST, Senior Business Analyst For all the others it also possible to process) • All Business Analysts has responsibilities User Support and Task Realization • All Programmer has responsibility User Support • FrontEnd Developer (team1) ◦ manage all other FrontEnd Developer

For Company it’s necessary to create • IT ◦ Backend Developer ◦ Frontend Developer ◦ Senior Programmer ◦ Senior Business Analyst ◦ Scrum Master ◦ Product Owner • Marketing ◦ Web Designer 187 2000$/month 2. FRONT_DEV, Frontend Developer, with standard rate 2300$/month 3. SENIOR_PROGRAMMER, Senior Programmer 4. SENIOR_BIZ_ANALYST, Senior Business Analyst For all the others it also possible to process) • All Business Analysts has responsibilities User Support and Task Realization • All Programmer has responsibility User Support • FrontEnd Developer (team1) ◦ manage all other FrontEnd Developer

} } We can define a new class Programmer that extends Person : class Programmer extends Person {} Now if we instantiate a new object with class Programmer , it has access to the hello() method: method: const flavio = new Programmer() flavio.hello() //'Hello, I am a Person' Inside a child class, you can reference the parent class calling super() : class Programmer extends Person { hello() super.hello() + '. I am also a programmer.' } } const flavio = new Programmer() flavio.hello() The above program prints Hello, I am a Person. I am also a programmer.. 44 22. Asynchronous Programming

possibly better approach would be to provide a mockable component. But that complicates the programmer's API with more template parameters. I could keep going along this line but I won't.Testability possibly better approach would be to provide a mockable component. But that complicates the programmer's API with more template parameters. I could keep going along this line but I won't.Testability possibly better approach would be to provide a mockable component. But that complicates the programmer's API with more template parameters. I could keep going along this line but I won't.Testability