![]() n Tells the compiler not to read the configuration file fpc.cfg(5) It also gives you the FPC version number. l This option tells the compiler to print the FPC logo on standard output. You can give it an option, as -ixxx where "xxx" can be one of the following: i This option tells the compiler to print the copyright information. ? idem as -h, but waiting after every screenfull for the enter key. h if you specify this option, the compiler outputs a list of all options, and exits after that. See the separate manpage of fpc.cfg(5) for more information. (FCL, FreeVision), and optionally default values for some switches. Processing of the source file, fpc.cfg(5) the configuration file of the compiler is read which contains the location of the RTL, other packages The compilation proces is started by typing fpc followed by a sourcefile name (normally with. It was made before the even/odd version naming system was introduced. Version 0.99.5 however is a stable release. Odd it is a daily changing development version.(1.0.5, 1.1) just like the linux kernel. If the last number is even (1.0, 1.0.2), it is stable, and if the last number is Starting with release 1.0, a new versioning system has been implemented. FPC comes with a great (2000+ pages) manual, which is updated constantly, while this man page can be out of This manpage is meant for quick-reference only. The other targets (M68K compilers for Atari and Amiga) are either based on older versions of the compiler or are still in The current main targets are Go32V2 (Dos DJGPP extender), Freebsd, Linux, MacOS, MacOSX, MorphOS, Netware, The compiler uses ld(1) and can use as(1) (see parameter -Aas), but also has its own binary object writer. Pascal and Delphi (7.0) compatible standalone (non GCC frontend) multitarget Pascal compiler. This binary is the main binary of the Free Pascal Compiler (FPC) which is a Turbo Syntax for declaring a subrange type is as follows − You can also define a subrange type using the type declaration. We will look at variable declaration in detail in the next section. For example, if the age of voters should lie between 18 to 100 years, a variable named age could be declared as − Subrange types allow a variable to assume values that lie within a certain range. The domain of enumerated type identifiers cannot consist of numeric or character constants. For example, in the enumerated type SUMMER, April comes before May, May comes before June, and so on. ![]() The order in which the items are listed in the domain of an enumerated type defines the order of the items. TRANSPORT = (Bus, Train, Airplane, Ship) SUMMER = (April, May, June, July, September) ĬOLORS = (Red, Green, Blue, Yellow, Magenta, Cyan, Black, White) ![]() )įollowing are some examples of enumerated type declarations − Enumerated data types can be declared as follows −Įnum-identifier = (item1, item2, item3. Only assignment operators and relational operators are permitted on enumerated data type. They allow values to be specified in a list. Enumerated typesĮnumerated data types are user-defined data types. Syntax of constant type declaration is follows −įollowing are some examples of constant declarations −Īll constant declarations must be given before the variable declaration. Constants can be declared in the declaration part of the program by specifying the const declaration. Pascal allows numerical, logical, string and character constants. Use of constants makes a program more readable and helps to keep special quantities at one place in the beginning of the program. Type-identifier-1, type-identfier-2 = type-specifier įor example, the following declaration defines the variables days and age as integer type, yes and true as Boolean type, name and city as string type, fees and expenses as real type.įollowing table gives you details about standard integer types with its storage sizes and value ranges used in Object Pascal − Type The type declaration is used to declare the data type of an identifier. Pascal data types can be summarized as below in the following diagram − Type Declarations We will discuss the pointer data types later. Structured data types are made of the scalar types for example, arrays, records, files and sets. Examples of scalar data types are integer, real, Boolean, character, subrange and enumerated. Data types can be categorized as scalar, pointer and structured data types. Integer, real, Boolean and character types are referred as standard data types. Data types of an entity indicates the meaning, constraints, possible values, operations, functions and mode of storage associated with it.
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