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QtTaskTree::RepeatIterator Class

class QtTaskTree::RepeatIterator

For要素の内部で使用される反復イテレータ。さらに...

ヘッダー #include <qtasktree.h>
CMake： find_package(Qt6 REQUIRED COMPONENTS TaskTree)
target_link_libraries(mytarget PRIVATE Qt6::TaskTree)
qmake： QT += tasktree
以来：Qt 6.11
継承： QtTaskTree::Iterator

注意:このクラスの関数はすべてリエントラントです。

パブリック関数

RepeatIterator(qsizetype count)

詳細説明

Iterator 、ForeverIterator 、UntilIterator 、ListIteratorも参照のこと 。

メンバ関数のドキュメント

[explicit] RepeatIterator::RepeatIterator(qsizetype count)

For (RepeatIterator(count)) >> Do {} の繰り返しイテレータを構築します。イテレータはcount 回繰り返します。

使用例：

static const intmaxTries= 5;static const intmaxNumber= 10;const intluckyNumber=QRandomGenerator().global()->bounded(maxNumber)；
qDebug() << "Today's lucky number is:" << luckyNumber;
qDebug() << "You have" << maxTries << "lottery tickets.";
qDebug() << "Let's start the drawing...";

const autoonNumberCheck= [luckyNumber]{const intdrawnNumber=QRandomGenerator().global()->bounded(maxNumber)；    qDebug() << "You have drawn:" << drawnNumber;
   returndrawnNumber==luckyNumber; };const autoonDone= [](DoneWith result) {if(result==DoneWith::Success)        qDebug() << "You have won! Congratulations!";
   else if(result==DoneWith::Error)        qDebug() << "You have lost. Try again.";
};constGroup recipe { For (RepeatIterator(maxTries))>>Do { stopOnSuccess,timeoutTask(1s)、        QSyncTask(onNumberCheck) },onGroupDone(onDone) };

QTaskTree によってrecipe が開始され、成功で終了した場合に可能な出力：

Today's lucky number is: 6
You have 5 lottery tickets.
Let's start the drawing...
You have drawn: 9
You have drawn: 6
You have won! Congratulations!

エラーで終了した場合、出力は以下のようになる：

Today's lucky number is: 8
You have 5 lottery tickets.
Let's start the drawing...
You have drawn: 1
You have drawn: 7
You have drawn: 6
You have drawn: 7
You have drawn: 2
You have lost. Try again.

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