Максимальный размер QString в Qt

Сколько вообще символов в QString вставить? Я смотрю там есть какой то лимит или я незнаю, короче часть символов просто режется при выводе или обработке при этом размер показывается тот же что и число символов с тем что размер фиксируется разный почему? Я конечно подсчитал кол-во символов (1019) но может это от системы зависит, я не знаю.

QString la =  "and the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embedded";
    qDebug() <<"la size=" <<la.length();
    qDebug() <<"la=" <<la;
    la += "Madoka Magika is my favorite anime";
    qDebug() <<"la2 size=" <<la.length();
    qDebug() <<"la2=" <<la;

Вывод:

la size= 1316
la= "and the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functiÉè&
la2 size= 1350
la2= "and the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functions, that return the minimum or maximum of two ... QString, QByteArray, and QVariant are three classes that have many things in ... C++ natively provides two kinds of strings: traditional C-style ' / 0'-terminated ... The length() function returns the size of the entire string, including embeddedand the qMin() and qMax() functÕê$