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/* 1 */

template<template <size_t> class T, size_t... Indices> struct summa;
    
template<template <size_t> class T, size_t Index, size_t... Indices>
struct summa<T, Index, Indices...>
{
    static const decltype(T<Index>::value) value;
};

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if (!String.prototype.format) {
  String.prototype.format = function() {
    var me = this;
    
    function replacer4Array(a) {
      return me.replace(/{(\d+)}/g, function(match, number) {
        var n = parseInt(number, 10);
        
        if (isNaN(n) || typeof a[n - 1] === "undefined") {
          return match;

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QWebView *MuWebView::createWindow(QWebPage::WebWindowType type) {
    Q_UNUSED(type)

    QWebView* webView = new QWebView;
    QWebPage* webPage = new QWebPage(webView);

    webView->setWindowModality(Qt::ApplicationModal);
    webView->setAttribute(Qt::WA_DeleteOnClose, true);
    webView->setPage(webPage);

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#include <iostream>
#include <iomanip>
#include <fstream>
#include <vector>
#include <chrono>
#include <utility>
#include <cmath>

const size_t records_number = 1000000;
const size_t check_status_chunk_size = records_number / 100;

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import std.stdio;
import std.net.curl;
import std.regex;
import std.conv;

version(Windows) {
  import std.windows.charset;
}

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QLineEdit[hasErrorData=true] {
    border-radius: 6px;
    border: 2px solid #9A4745;
}

…

ui->adminLoginEdit->setProperty("hasErrorData", "true");

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object StringUtils {
  implicit class StringImprovements(val s: String) {
    import scala.util.control.Exception._
    def toIntOpt = catching(classOf[NumberFormatException]) opt s.toInt
    def toLongOpt = catching(classOf[NumberFormatException]) opt s.toLong
  }
}

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void TERPConnector::asyncRequest(const QString &url, const QString &requestData, const QString &successfulDataType, std::function<void(QJsonObject)> onSuccess,
                                 std::function<void(QJsonObject)> onError, std::function<void(QJsonObject)> onTimeout, int requestTimeout) {
  QSharedPointer<QNetworkAccessManager> nam = QSharedPointer<QNetworkAccessManager>(new QNetworkAccessManager);
  QUrl requestUrl(url_.toString() + url);

  if (nam
      /*&& nam_->networkAccessible() == QNetworkAccessManager::Accessible*/) {
#ifdef DEBUG
    qDebug() << "asyncRequest: url = " << requestUrl.toString() << ", data = " << requestData << ", succDataType = " << successfulDataType
             << ", requestTimeout = " << requestTimeout;

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const QString vsrc = R"SHADER(
#include "shaders/shader.glsl"
)SHADER";

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import shapeless._

// A pair of ordinary case classes ...
case class Address(street : String, city : String, postcode : String)
case class Person(name : String, age : Int, address : Address)

// Some lenses over Person/Address ...
val nameLens     = lens[Person] >> 'name
val ageLens      = lens[Person] >> 'age
val addressLens  = lens[Person] >> 'address