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How do you write a window function?

emmalee last edited by

How to write the C+++ window function without the use of libraries windows.h♪ winAPI♪ How does that even happen?
Like example, I want to create my 2nd move on a clean C+++ without creating a window and drawing off the front libraries, and do everything from scratch, what is it? Is that possible, or is there no library?
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baileigh last edited by

I doubt that Windows can fall below WinAPI.
There's a linux. https://en.wikipedia.org/wiki/Linux_framebuffer - can be painted directly on the screen, without windows, etc.
Besides, if you don't want your move to work fast, you need to draw on the GPU, not the CPU. This will require the use of one of the APIs provided by the driver's video card, OpenGL, Vulkan, ... You won't be able to replace them, because that's why you need to write your drive and convince the players to put it.
If you want my opinion, you'll just waste your time.
You're gonna have enough trouble with the move and an improvised schedule.
Better take it. Gross graphical library, e.g. http://libsdl.org/ ♪ It's low-level enough not to be bored, but it works for all the big LOs.
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Little pie decision.a = [1,3,5] # исходный список r = range(min(a), max(a) + 1) # а это список из всех возможных элементов print list(set(r) - set(a)) # а теперь просто пересечение. `list` добавлено только что бы получить список. его возможно нужно будет отсортировать ans = sorted(list(set(r) - set(a))) It works well if there are repeats on the original list or it's not disserted.
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You didn't do that kind of export, the first file you'd look like this.module.exports = { die: function() { throw new Error("this is error") } } a Secondlet di = require("./1.js"); di.die();
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We'll look at the entry point: 1234We need the function back. 1 + 4 = 5Take your time to confuse the input and first get the last digit by dividing the residue by 10.int Last = Number % 10 <-> int Last = 1234 % 10 = 4Now we need to get the first digit, so we need to get rid of the last three numbers by dividing for 10.With the cycle you've done the right thing, he's got to split the number by 10 until grad= 10.Number = 1234 / 10 = 123 -> 123 / 10 = 12 -> 12 / 10 = 1Got it. int First = Number <-> int First = 1We return the result: return First + Last <-> return 1 + 4 <-> return 5
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if( a[i] == -1 && a[i+1] != -1 && i != n-1 ) This line is obviously unsuccessful, and it's going to be out of range.consider all elements, after the double cycle, to find unequal -1Isn't it enough to find one normal element and rebuild the whole body on both sides? The module's on.
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Hi, I couldn't run your code, but here's an example that does what you need:import sys import os from PyQt5.QtWidgets import * class TelaPrincipal(QMainWindow): def init(self, *args, **kwargs): super(TelaPrincipal, self).init(*args, **kwargs) self.setWindowTitle('Tela Principal') self.setGeometry(100, 200, 300, 200) self.central_widget = QWidget() self.setCentralWidget(self.central_widget) self.layout = QVBoxLayout(self.central_widget) self.description = QLineEdit() self.price = QLineEdit() self.amount = QLineEdit() self.cadastrar = QPushButton('Salvar Dados') self.cadastrar.clicked.connect(self.salvar_dados_cadastro) self.layout.addWidget(self.description) self.layout.addWidget(self.price) self.layout.addWidget(self.amount) self.layout.addWidget(self.cadastrar) self.setLayout(self.layout) self.check_txt_file() def check_txt_file(self): exist = os.path.exists('Estoque.txt') if exist is False: create_db = open("Estoque.txt", "a+") create_db.write("Descricao|Preco|Quantidade\n") create_db.close() def cadastrar_produtos(self): dados = f'{self.description.text()}, {self.price.text()}, {self.amount.text()}\n' return dados def salvar_dados_cadastro(self): dados = self.cadastrar_produtos() with open('Estoque.txt', 'a+') as w: w.write(dados) def main(): app = QApplication(sys.argv) root = TelaPrincipal() root.show() sys.exit(app.exec_()) if name == 'main': main()
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You are making a syntax error.To access arrays you must use [ and not (.Change your code to stay this way:public function sumQuantidadesPorProduto() { $quantidades = $this->getAllQuantidadesLocais(); $sum = 0; $matrix = array(); foreach ($quantidades as $key => $quantidade) { $sum+=intval($quantidade['quantidade']); $matrix[0][$key] = $quantidade['id_product']; $matrix[1][$key] = $sum; } return $matrix; }
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error: request for member 'arreglo' in something not a structure or union
Software Programming • c language array • • fbio

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The structure defines a member called arre:typedef struct { int arre[N]; // <<--- AQUI!!! int tope; } ArregloConTope; And yet then you try to access the member arreglo:void Insertar (ArregloConTope *act, int valor) { int posicion = act->tope; act.arreglo[posicion] = valor; // <<--- AQUI!!! act->tope++; } The solution is as simple as replacing arre for arreglo or vice versa.On the other hand, look at it. main You're declaring a pointer without initializing:int main(){ ArregloConTope *act; // <<--- Declaras puntero sin inicializar int valor; int op; printf("\t\tBienvenido al programa de arreglo con tope\n"); printf("1.Insertar elemento\n"); printf("2.Verificar si el vector esta lleno\n"); printf("Ingrese una opcion "); scanf("%d",&op); switch(op){ case 1: Insertar(act, valor); // <<--- Y aqui lo usas With that the application will access (by pointer) to memory that does not belong to it and the Operating System, to prevent you from corrupting memory, will kill the process. The result is a beautiful segmentation error and the application to the hook.For this particular case it is not necessary that you use dynamic memory, so at the moment I would save it (there is enough to understand the rest of the language). Still, we should not forget to initialize the variables correctly to avoid strange behaviors:int main() { ArregloConTope act; act.tope = 0; // <<--- Importante // ... Insertar(&act,valor); // ... printf("%d", EstaLleno(act)); } By the way, note that at no time are you asking the user to fill the variable valor... then don't complain if I fill you with the trash.
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Objective-C/C++#importheaders containing directives must not be included from source files (.c/.cpp) for standard C/C++.From "TestObjectC.h"#import <Foundation/Foundation.h>after removingImport and include on the source file side of Objective-C++.HomeNSLog()The function itself is called directly within the C and C++ functions if it is within the source file (.m/.mm) of Objective-C/C++. However,@autoreleasepoolYou should use a block.// TestObjectC.mm #import <Foundation/Foundation.h> #include "TestObjectC.h" void TestObjectC::callObjC() { @autoreleasepool { NSLog(@"C++ から呼ばれました。"); } } // xxx.m or xxx.mm #include "xxx.h" void printUtf8StringByNSLog(const char* utf8) { @autoreleasepool { NSString* str = [NSString stringWithUTF8String: utf8]; NSLog(@"%@", str); } } void printUtf16StringByNSLog(const char16_t* utf16) { @autoreleasepool { NSLog(@"%S", utf16); } } // xxx.h #pragma once // C++ ではなく C コードから利用する場合は <uchar.h> のインクルードが必要。 extern void printUtf8StringByNSLog(const char* utf8); extern void printUtf16StringByNSLog(const char16_t* utf16); NSLog()Homeconst char*to output%sThere is a format, but it does not correspond to UTF-8 multibyte string. https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265-SW1 Contact UsnewSupporteddeleteYou should avoid writing a semi-finished singleton.In C++11 or later,staticInitialization of local variables is guaranteed to be thread-safe, so to implement a singletonstaticYou can also use local variables. https://cpprefjp.github.io/lang/cpp11/static_initialization_thread_safely.html Added on 2021-05-12<uchar.h>C11char16_tA header required for aliasingchar16_tIf you don’t use C, you don’t have to include them.I assume that Xcode is used on macOS, but now Apple Clang C11 is incomplete and UTF-16 literaluPrefix and C99uint_least16_tXcode 12.4<uchar.h>is not implemented.C++char16_tBecause of the built-in type, there is no need to include anything especially when using it. https://ja.cppreference.com/w/c/string/multibyte/char16_t https://ja.cppreference.com/w/c/language/string_literal https://ja.cppreference.com/w/c/types/integer https://ja.cppreference.com/w/cpp/language/types https://ja.cppreference.com/w/cpp/language/string_literal If you write the following in advance, you can compile it at once.#ifndef __cplusplus #include <stdint.h> typedef uint_least16_t char16_t; #endif
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The detailed numbers are removed by %f, we need to redesign the formatstr_format DB "int_one = %d , int_two = %f",0
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Not globalI feel like writing in the same anonymous function
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C++ isn't my main language, and I don't know the good practices and the specifics of your project, but why don't you just overload the designer so you can get something like that.std::vector<Enemy *> SetOfEnemy = { new Shadow(lvl, "blinky"), new Speedy(lvl, "pinky"), new Bashful(lvl, "inky"), new Pokey(lvl, "clyde"), }; lvl.GetObject♪ lvl.GetWidthand lvl.GetHeight Called in the designer, 32 In default arguments.
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I wrote for your example. C++ I think it's as desirable as I say, "A's,"#include <iostream> #include <string> using namespace std; void task(char word[100]) { for (int i = 0;i < strlen(word);++i) { if ('A' <= word[i] && word[i] <= 'Z') word[i] = word[i] - 'A' + 'a'; else if ('a' <= word[i] && word[i] <= 'z') { word[i] = word[i] - 'a' + 'A'; } } } void main() { char word[100]; cin >> word; task(word); cout << word; }
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Software Programming • c++ optimization c language+11 • • Burma

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Data structuresThe program has to read two different hours. You already have two elements of the same kind... it's a good time to create a data structure:struct Time { int hours; int mins; }; And why a data structure and not something that brings back the total minutes directly?For several reasons:Data are easier to treat if properly organized (i.e. structured)C++ is object-oriented, we will take advantage of that point.It is my answer and I am writing it Okay, let's go.Overload of operatorsIn addition, the two hours are read from the keyboard. So it would be no longer to provide a mechanism that would store an hour in this structure. This does not pretend to be a master class because then it would be too long, so we will assume that the user will introduce the correct values. From this base we can easily overload the extraction operator as follows:std::istream & operator>>(std::istream& is, Time & time) { char sep; is >> time.hours >> sep >> time.mins; return is; } What makes this function is to read an integer (the hour), then read a character (the separator), which discards, and finally a second integer (the minutes). And yes, that weird thing is a function, you can easily check it with the following code:Time time; operator>>(std::cin, time); std::cout << time.hours << ':' << time.mins; If you enter by keyboard an hour (horas:minutos) will print it on screen... although of course, operators are not intended to be used as functions. Surely this other example will look more beautiful even though at the functional level they are exactly the same:Time time; std::cin >> time; std::cout << time.hours << ':' << time.mins; The case is that with what we have seen so far the start of the program is far more readable:Time entrada, salida; std::cout << "Introduce hora de entrada: \n"; std::cin >> entrada; std::cout << "Introduce hora de salida: \n"; std::cin >> salida; Conversion of valuesThen we see that it is requested to convert the hour to full minutes... that is, another function. In this case we will venture to create a member function for having variety:struct Time { int hours; int mins; int ToMinutes() const { return hours * 60 + mins; } }; With this the start of the program would already be complete:Time entrada, salida; std::cout << "Introduce hora de entrada: \n"; std::cin >> entrada; std::cout << entrada.ToMinutes() << " minutos\n"; std::cout << "Introduce hora de salida: \n"; std::cin >> salida; std::cout << salida.ToMinutes() << " minutos\n"; Of course this is C++ and here is not a single way to solve the problems but a hundred million... Another possibility would happen to take advantage of the conversion operators... I don't usually like this option because it's relatively simple to screw up the schedule:struct Time { int hours; int mins; operator int() const { return hours * 60 + mins; } }; With this operator we could write the following graphic work, aberration, engender, ... each one that uses the adjective that best suits you: int opcion1 = entrada; int opcion2 = (int)entrada; int opcion3 = static_cast<int>(entrada); std::cout << opcion1 << ' ' << opcion2 << ' ' << opcion3; The case is that, as you can check if you test the example above, it works. As I say to my operators I don't usually like too much, but they exist and it is convenient to know at least their existence.Arithmetic operationsThen there's an operation to subtract dates... at this point we could take several paths, I highlight two:Use the method ToMinutes. If we already have the total of minutes, the next step could, simply, subtract both totals. This would perhaps be the most recommended option in this case:int mins_entrada = entrada.ToMinutes(); int mins_salida = salida.ToMinutes(); int total_mins = mins_salida - mins_entrada; Create a feature that subtracts type objects Time. This option could be more versatile in other contexts... for this particular case it serves more as teaching purposes:Time operator-(Time const& t1, Time const& t2) { Time to_return{t1.hours - t2.hours, t1.mins - t2.mins}; if( to_return.mins < 0 ) { to_return.mins += 60; to_return.hours--; } return to_return; } Time diff = salida - entrada; int total_mins = diff.ToMinutes(); The case is we already have the number of minutes between the two hours. The only point that could be conflicting at this point is to take the hours out with decimals, but the truth is that it doesn't have too much complication either: It's enough to remember that if we split an integer between an integer float the result of the operation will be floatI mean, you'll have decimals:float total_hours = total_mins / 60.f; Possible improvementsThere is a structure https://en.cppreference.com/w/cpp/chrono/c/tm which serves for the management of dates and hours. Normally it doesn't seem to reinvent the wheel, so it would be convenient to learn to deal with existing functions and classes. It is up to the reader to make the necessary changes for the program to use std::tm instead of class Time.ConclusionsAnd that's it, we already have the finished program, we just need to print the final results.You can see the code running in https://wandbox.org/permlink/X7iF7qjqykspQmDf .
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getline problem in c++
Software Programming • c++ string arc languagehivo • • derk

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You must remove the command from your code cin.ignore() since it erases or ignores the characters you've introduced earlier.Based on this document: http://michelletorres.mx/metodos-de-cin-en-c/
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Software Programming • c language c languagehained list • • Kadyn

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At the top of the program, do#include <string.h> Then change the content of CopyString tovoid CopiarString(char* destino, char* origem) { strcpy(destino, origem); } Take it off & the scanf("%s", &nome) because nome, alone, is already a memory address.Do not forget to dislocate memory with free(), before you finish the program!

How do you write a window function?

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