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1. • • An ingestor is a program that reads data entering the system through a communications port. Ingestors read asynchronous data from conventional data circuits such as DDS, IDS and PPS.
     www.ssec.wisc.edu › mcidas › doc

     Ingestors - University of Wisconsin–Madison

2. Top results related to what is event ingestor mean in computer programming

   • What is mean by Metafunctions & Metaclasses in Programming Languages?

     Top Answer

     Answered Mar 01, 2018 · 4 votes

     Metafunctions

     A metafunction in C++ is a way of expressing a compile-time computation using template metaprogramming -- using template instantiation and type deduction to generate results at compile time.

     Fundamentally, a metafunction is a class template with constexpr members (for metafunctions returning values) or typedefs (for metafunctions returning types). The technique can be illustrated by the metafunction is_same which checks if two type parameters are the same. A possible implementation (from cppreference.com) is

     template<class T, class U>struct is_same : std::false_type {};-template<class T>struct is_same<T, T> : std::true_type {};-

     where std::true_type is a helper metafunction that has a member constexpr bool value = true (and false for false_type).

     A metafunction is called by instantiating the template and reading the member containing the result, for instance the expression

     is_same<int,int32_t>::value-

     which will evaluate to the boolean value true if int is 32 bits, and false otherwise.

     Another example, from type_traits is std::is_floating_point, which checks if a type is a floating point type. It can be called as

     is_floating_point<int>::value-

     The standard library (mostly) has the convention that metafunctions returning values have the member value, and metafunctions returning types have the type alias type.

     An example of a type-returning metafunction is std::iterator_traits which is used to get information about iterators. For intance, given an iterator type Iter, one can get the value type (i.e., the type returned by dereferencing the iterator) with

     iterator_traits<Iter>::value_type-

     and the iterator category (e.i., ForwardIterator, RandomAccessIterator, etc.) with

     iterator_traits<Iter>::iterator_category-

     An example of compile-time computation is a metafunction that computes the factorial:

     template <unsigned int N>struct Fac{ static constexpr unsigned int value = N * Fac<N-1>::value; };-template <>struct Fac<0>{ static constexpr unsigned int value = 1;};-

     Again, this metafunction is called as Fac<5>::value

     Metaclasses

     Metaclasses is a proposed addition to C++ to allow expressing constraints on a (kind of) class in code instead of just using conventions and documentation.

     For instance, an "interface" is often used to describe a class that has

     • only pure virtual public function
     • a virtual destructor

     With a metaclass interface, that could be written

     interface Example { void Foo(); int Bar(int);}-

     which would then be instantiated by the compiler to the class

     class Example { public: virtual void Foo() =0; virtual int Bar(int) =0; virtual ~Foo() =default; }-

     A good summary of the metaclass proposal can be found at this fluentc++ blog post. A comprehensive source is Herb Sutter's blog post

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   • what is mean of "on the fly" sentence in programming?

     Top Answer

     Answered Oct 19, 2015 · 1 votes

     In your example, "on the fly" means "while the program is running". While the program is running, it creates an implementation of the interface. At runtime, not compile-time.

     Let me give you another example, when you write a java swing program, sometimes you need to add some components to the JFrame when the user presses a button or something. You want to create the components by hand, not by the designer. You can say that you create components and add them to the JFrame on the fly.

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     2/5

   • What does it mean by Page Flipping in computer graphics programming?

     Top Answer

     Answered Apr 07, 2020 · 5 votes

     Page flipping is a simple hardware-assisted technique for flicker-free graphics which has been with us for decades.

     It requires support from the hardware:

     • The video subsystem must have at least two areas of memory (pages)that can potentially be visible, of which only one is visible at anygiven moment.
     • The video subsystem supports some means whereby the software can selectwhich of the two pages is visible. This is usually just a singleinstruction to the hardware, and the switch is instantaneous, because the hardware simply stops scanning one page and starts scanning the otherpage.

     So, the idea is that at any given moment we keep one page visible, while on the other page we are doing the rendering of our next frame. Once we are done rendering the frame, we send the hardware instruction that instantaneously "flips" the visible page, which means that the page where we did our rendering now becomes visible, while the page that used to be visible becomes invisible and available for us to render the next frame in it. We repeat the process for each frame, always rendering on the invisible page while the user is seeing the visible page.

     More elaborately, it works as follows:

     • We have two pages, A and B. In the beginning both pages are blank, page A is visible, page B is invisible.
     • We render our graphics frame on page B, which is invisible, so initially the user does not see it.
     • Once we are done rendering our frame in page B, we send the hardwareinstruction to flip the pages, so the user now starts seeing ourrendering on page B.
     • We render our next frame on invisible page A, so the user does not see the rendering taking place. (That would be perceived as flicker.)
     • Once we are done rendering on page A, we flip the pages again, so now the user can see our newly rendered page, while the previouslyvisible page now becomes invisible and available for rendering the nextframe in it.
     • We keep repeating this procedure for each frame.

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     3/5

   • what does "the condition is met" exactly mean in programming languages?

     Top Answer

     Answered Sep 05, 2020 · 4 votes

     The part in brackets in the if statement is the condition. For example, in

     if (x == 5)-

     the condition is x == 5. The condition being "met" basically means "if the expression evaluates to true" (so here, if the value of x is 5). In Javascript it's a little more complicated than that, because the condition doesn't have to be an actual Boolean expression. Based on the result of the expression, the following evaluation takes place:

     • Undefined => false
     • Null => false
     • Boolean => the value (so true => true, false => false)
     • Number => true for any number except 0, -0, or NaN, false for those
     • String => true for any non-empty string, false otherwise
     • Symbol => true
     • BigInt => true for any non-zero value
     • Object => true

     If the result of that is true, then the condition is met and the body of the if statement is executed. Otherwise, the body of the else part is executed if there is one.

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     4/5

   • What is it mean by exit code 139 in C programming when i compile a code?

     Top Answer

     Answered Aug 27, 2021 · 1 votes

     here error code 139 indicates segment fault that is arising because you haven't used format specifiers in the code the correct code will be

     #include <stdio.h>#include <string.h>-int main(void){ char ch = 'A'; short s = ch; printf("%d",s); printf("\n________________________\n"); short s2 = 67; char ch2 = (char)s2; printf("%c",ch2); return 0;}

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     5/5

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3. People also ask

   What is event-driven programming?

   • Event-driven programming is a computer programming paradigm where control flow of the program is determined by the occurrence of events. These events are monitored by code known as an event listener. If it detects that an assigned event has occurred, it runs an event handler (a callback function or method that's triggered when the event occurs).

   What is Event-driven Programming? - Computer Hope

   www.computerhope.com/jargon/e/event-driven-prog.htm

   See all results for this question

   What is the event driven programming paradigm?

   • What is the Event Driven Programming Paradigm ? Event-driven programming is a paradigm where the execution of a program is determined by events such as user actions or messages. Programs respond to events with predefined actions, allowing for asynchronous and responsive behavior, often seen in GUI applications and distributed systems.

   What is the Event Driven Programming Paradigm - GeeksforGeeks

   www.geeksforgeeks.org/what-is-the-event-driven-programming-paradigm/

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   What is event programming?

   • A scheduled alarm fires at the requested time. Event programming is, as its name indicates, a way to connect all of these events. Rather than polling interfaces, we wait for messages to tell us when something happens. Programs driven primarily by events remain idle most of the time, only consuming resources when something requires their attention.

   What is event programming? - Medium

   medium.com/mortoray/what-is-event-programming-66c7e1eae57f

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   What is the producer-consumer pattern in event-driven programming?

   • The producer-consumer pattern plays a fundamental role in event-driven programming. Producers generate events, and consumers subscribe to them, taking action upon their occurrence. An event broker/queue mediates between producers and consumers, guaranteeing reliable event delivery.

   Event-driven programming—a deep dive into event-based architectures

   redpanda.com/guides/event-stream-processing/event-driven-programming

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4. www.computerhope.com › jargon › eWhat is Event-driven Programming? - Computer Hope

   www.computerhope.com › jargon › e

   • Cached

   Nov 13, 2018 · Event-driven programming is a computer programming paradigm where control flow of the program is determined by the occurrence of events. These events are monitored by code known as an event listener.

   • Event Listener

     An event listener is a procedure or function in a computer...

   • What is an Event

     In programming, an event is an outcome that occurs due to a...

5. codenga.com › articles › guidesEvent-Driven Programming - A Guide for Beginners | Codenga

   codenga.com › articles › guides

   • Cached

   Mar 18, 2024 · Event-driven programming promotes loose coupling between different components of the application, making it easier to manage and develop code. Instead of a large block of code executed line by line, we have small blocks that are executed when a specific event occurs.

6. www.geeksforgeeks.org › what-is-the-event-drivenWhat is the Event Driven Programming Paradigm - GeeksforGeeks

   www.geeksforgeeks.org › what-is-the-event-driven

   • Cached

   Feb 2, 2024 · Event-driven programming is a paradigm where the execution of a program is determined by events such as user actions or messages. Programs respond to events with predefined actions, allowing for asynchronous and responsive behavior, often seen in GUI applications and distributed systems.

7. redpanda.com › event-driven-programmingEvent-driven programming—a deep dive into event-based ...

   redpanda.com › event-driven-programming

   • Cached

   Event-driven programming is a paradigm in which program execution is governed by such events, as opposed to a strictly sequential operational sequence. Event-driven programming facilitates the development of inherently more responsive and scalable systems.

8. en.wikipedia.org › wiki › Event-driven_programmingEvent-driven programming - Wikipedia

   en.wikipedia.org › wiki › Event-driven_programming

   • Cached

   In computer programming, event-driven programming is a programming paradigm in which the flow of the program is determined by external events. Typical event can be UI events from mice, keyboards, touchpads and touchscreens, or external sensor inputs, or be programmatically generated (message passing) from other programs or threads, or network ...

9. medium.com › mortoray › what-is-event-programming-66What is event programming? - Medium

   medium.com › mortoray › what-is-event-programming-66

   • Cached

   Jun 25, 2017 · Event programming is, as its name indicates, a way to connect all of these events. Rather than polling interfaces, we wait for messages to tell us when something happens.

10. www.techopedia.com › definition › 7083What is an Event-Driven Program? - Definition from Techopedia

    www.techopedia.com › definition › 7083

    • Cached

    Feb 27, 2018 · The idea in event-driven programming is that the program is designed to react. It reacts to specific kinds of input from users, whether it's a click on a command button, a choice from a drop-down list, an entry into a text box, or other kinds of user events.