Download Constructive foundations for functional languages by Raymond Turner PDF

By Raymond Turner

Show description

Read or Download Constructive foundations for functional languages PDF

Similar languages & tools books

Programming distributed computing systems: a foundational approach

Ranging from the basis that knowing the rules of concurrent programming is essential to constructing disbursed computing structures, this booklet first provides the basic theories of concurrent computing after which introduces the programming languages that aid advance disbursed computing platforms at a excessive point of abstraction.

Problem Solving and Program Design in C, Global Edition

For introductory classes in computing device technology and engineering. (Learning to application with ANSI-C)

Problem fixing and application layout in C teaches introductory scholars to software with ANSI-C, a standardized, industrial-strength programming language recognized for its strength and chance. The textual content makes use of extensively authorized software program engineering how to train scholars to layout cohesive, adaptable, and reusable application answer modules with ANSI-C. via case stories and actual global examples, scholars may be able to envision a qualified profession in programming.

Widely perceived as a very tricky language because of its organization with complicated equipment, the 8th version methods C as conducive to introductory classes in software improvement. c program languageperiod subject matters are geared up in response to the wishes of newbie programmers instead of constitution, making for a fair more uncomplicated advent to the topic. protecting numerous facets of software program engineering, together with a heavy specialise in pointer thoughts, the textual content engages scholars to exploit their challenge fixing talents all through.

Additional info for Constructive foundations for functional languages

Example text

When a package is loaded in this way, the main application can no longer use its units as normal. Instead, you have two choices: either have the package explicitly say what types it exposes via exported functions, or have the main application poll the RTTI (runtime type information) system. In the first case, a package is treated like an ordinary DLL or dylib, only without its author needing to worry about Delphi-specific types, calling conventions, and inter-module memory management. Create(TSomeForm, TSomeOtherForm); end; exports GetExportedFormClasses {$IFDEF MACOS} name '_GetExportedFormClasses'{$ENDIF}; end.

Make(@EnumValue, TypeInfo(TMyEnum), Box); To unbox a value, you generally use the AsType method as previously shown. , as a floating point number function AsInteger: Integer; function AsInt64: Int64; function AsInterface: IInterface; function AsObject: TObject; function AsString: string; function AsVariant: Variant; Where AsInteger has the same effect as AsType, so AsObject has the same effect as AsType and so on. Similar to how Make is a lower level version of From, the AsType function has some lower-level peers too: property DataSize: Integer read GetDataSize; procedure ExtractRawData(ABuffer: Pointer); procedure ExtractRawDataNoCopy(ABuffer: Pointer); function GetReferenceToRawData: Pointer; In the case of a reference type, GetReferenceToRawData will still return a pointer to the instance, even though the instance itself will be an implicit pointer already.

GetReferenceToRawData)^; WriteLn(S); //output: I love pointers end. Converting between types As such, TValue is not designed for automatically converting between types. The general rule is that if a given conversion isn’t supported implicitly in normal Delphi code, it isn’t supported by TValue. g. an enumeration. ToString; //(class 'TStringBuilder' @ 004180D0) In the class and class reference cases, the figure after the @ sign is the memory address of the object and class reference respectively.

Download PDF sample

Rated 4.17 of 5 – based on 36 votes