pptx
... “unit” The “else” branch may be missing Returns in any case > if d < 0.0 then printfn "yay!";; val it : unit = () What can this return? > let n = (if (d = 0.0) then 1) error FS0001: This expression was expected to have type ‘unit’ but here has type ‘int’ NPRG049— Programovací jazyky OCaml a F# ...
... “unit” The “else” branch may be missing Returns in any case > if d < 0.0 then printfn "yay!";; val it : unit = () What can this return? > let n = (if (d = 0.0) then 1) error FS0001: This expression was expected to have type ‘unit’ but here has type ‘int’ NPRG049— Programovací jazyky OCaml a F# ...
Notes
... Interactions are reads from and writes to variables or fields. Reads and writes are very fast Side effects are instantly seen by all parts of a program ...
... Interactions are reads from and writes to variables or fields. Reads and writes are very fast Side effects are instantly seen by all parts of a program ...
Thread
... – The listening thread should provide client information (e.g. at least the connected socket) to the servicing thread – Typically servicing threads are independant, but might access shared resources, e.g. database, and therefore might need to be synchronized. ...
... – The listening thread should provide client information (e.g. at least the connected socket) to the servicing thread – Typically servicing threads are independant, but might access shared resources, e.g. database, and therefore might need to be synchronized. ...
Multithreading
... Consider several threads trying to access the same bank account, some trying to deposit and other to withdraw: these activities need to be synchronized. Java objects were designed with multithreading in mind: for every object there is a lock associated with it. The object can only be accessed by a t ...
... Consider several threads trying to access the same bank account, some trying to deposit and other to withdraw: these activities need to be synchronized. Java objects were designed with multithreading in mind: for every object there is a lock associated with it. The object can only be accessed by a t ...
3_types
... // note how several values can be output by a single statement // a statement that introduces a variable is called a declaration // a variable holds a value of a specified type // the final return 0; is optional in main() // but you may need to include it to pacify your compiler Stroustrup/Programmi ...
... // note how several values can be output by a single statement // a statement that introduces a variable is called a declaration // a variable holds a value of a specified type // the final return 0; is optional in main() // but you may need to include it to pacify your compiler Stroustrup/Programmi ...
apnt_167.pdf
... This sample CAN application shows that the implementation of a CAN interface is straightforward. You may adapt this sample CAN application for your own software projects. You may also convert this application software for other on-chip CAN controllers. The Keil C166/ST10 development tools allow you ...
... This sample CAN application shows that the implementation of a CAN interface is straightforward. You may adapt this sample CAN application for your own software projects. You may also convert this application software for other on-chip CAN controllers. The Keil C166/ST10 development tools allow you ...
apworkshoparrays
... Access elements independently of implementation Client programs written in terms of generic component public void print(Collection c) ...
... Access elements independently of implementation Client programs written in terms of generic component public void print(Collection c) ...
Object-Oriented Programming - Department Of Computer Science
... or a C object can be used wherever a B object is expected or C is more specific than B The set of C instances is a subset of the set of B instances ...
... or a C object can be used wherever a B object is expected or C is more specific than B The set of C instances is a subset of the set of B instances ...
slides - University of Toronto
... Thread B: Decrement retrieved value; result is -1. Thread B: Store result in c; c is now -1. Thread A: Retrieve c. Thread A: Increment retrieved value; result is 0. Thread A: Store result in c; c is now 0. ...
... Thread B: Decrement retrieved value; result is -1. Thread B: Store result in c; c is now -1. Thread A: Retrieve c. Thread A: Increment retrieved value; result is 0. Thread A: Store result in c; c is now 0. ...
ppt - TAMU Computer Science Faculty Pages
... period of time. When condition met, returns back to runnable state • dead: after return of run method. Cannot be restarted. ...
... period of time. When condition met, returns back to runnable state • dead: after return of run method. Cannot be restarted. ...
Smart programming languages, smart program analysis
... All of them shared strong similarities, but differed on concrete details. In (Uustalu & Vene & Pardo, 2000) we proved a generic many-in-one recursion scheme parametrized by a recursive call pattern represented by a comonad with a distributive ...
... All of them shared strong similarities, but differed on concrete details. In (Uustalu & Vene & Pardo, 2000) we proved a generic many-in-one recursion scheme parametrized by a recursive call pattern represented by a comonad with a distributive ...
An Introduction to Control Structures
... • Subsequent serialization operations for the same object copy only the object reference into the stream, even if the object has changed • A simple solution to this problem: – invoke the reset method for the ObjectOutputStream object, which causes the next serialization of an object to be treated as ...
... • Subsequent serialization operations for the same object copy only the object reference into the stream, even if the object has changed • A simple solution to this problem: – invoke the reset method for the ObjectOutputStream object, which causes the next serialization of an object to be treated as ...
Combining Events And Threads For Scalable
... they can be batch-processed to improve code and data locality [15]. Flexibility and customizability: Most thread systems provide an abstract yet rigid, synchronous programming interface and the implementation of the scheduler is mostly hidden from the programming interface. Hiding the scheduler make ...
... they can be batch-processed to improve code and data locality [15]. Flexibility and customizability: Most thread systems provide an abstract yet rigid, synchronous programming interface and the implementation of the scheduler is mostly hidden from the programming interface. Hiding the scheduler make ...
Lecture 1 - Ali Kattan
... Mac OS X, Solaris, and Tru64 UNIX (formerly Digital UNIX)—support kernel threads. Ultimately, a relationship must exist between user threads and kernel threads. In this section, we look at three common ways of establishing such a relationship. Many-to-One Model The many-to-one model (Figure 4.5) map ...
... Mac OS X, Solaris, and Tru64 UNIX (formerly Digital UNIX)—support kernel threads. Ultimately, a relationship must exist between user threads and kernel threads. In this section, we look at three common ways of establishing such a relationship. Many-to-One Model The many-to-one model (Figure 4.5) map ...
David Walker
... Haskell has an edge on Java and C because data structures are immutable by default and the problems appear when two parallel threads are actively mutating shared data or other resources Haskell provides a tractor-trailer’s worth of options: ...
... Haskell has an edge on Java and C because data structures are immutable by default and the problems appear when two parallel threads are actively mutating shared data or other resources Haskell provides a tractor-trailer’s worth of options: ...
slides18-stm
... no need to mark anything in the type system because IO is everywhere. In Haskell, the programmer can choose when to live in the IO monad and when to live in the realm of pure functional programming. Interesting perspective: It is not Haskell that lacks imperative features, but rather the other l ...
... no need to mark anything in the type system because IO is everywhere. In Haskell, the programmer can choose when to live in the IO monad and when to live in the realm of pure functional programming. Interesting perspective: It is not Haskell that lacks imperative features, but rather the other l ...
CH 21: Java, Representation, and Object
... We next discuss inheritance-based polymorphism. When we extend a superclass, our new subclass inherits all public fields of its parent. Any code that uses an object of our subclass can call the public methods or access the public state variables it inherited from its parent class. In other words, an ...
... We next discuss inheritance-based polymorphism. When we extend a superclass, our new subclass inherits all public fields of its parent. Any code that uses an object of our subclass can call the public methods or access the public state variables it inherited from its parent class. In other words, an ...
History
... Communication between processes are done with the rendez-vous message passing mechanism (with very few exceptions: some system calls and all ...
... Communication between processes are done with the rendez-vous message passing mechanism (with very few exceptions: some system calls and all ...
Introduction to Threads
... "second thread executes register2 = cnt {register2 = 5} second thread executes register2 = register2 + 1 {register2 = 6} ...
... "second thread executes register2 = cnt {register2 = 5} second thread executes register2 = register2 + 1 {register2 = 6} ...
Join-pattern
Join-patterns provides a way to write concurrent, parallel and distributed computer programs by message passing. Compared to the use of threads and locks, this is a high level programming model using communication constructs model to abstract the complexity of concurrent environment and to allow scalability. Its focus is on the execution of a chord between messages atomically consumed from a group of channels.This template is based on join-calculus and use pattern matching. Concretely, this is done by allowing the join definition of several functions and/or channels by matching concurrent call and messages patterns. It employs the behavioral and the concurrency pattern because it makes easier and more flexible for these entities to communicate and deal with the multi-threaded programming paradigm.