Details
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Bug
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Resolution: Invalid
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Not Evaluated
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None
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4.7.2
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None
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Qt Creator
Description
Please, look at this code:
#include <QFile> #include <QDebug> #include <QDir> int main() { QString qs_Name_1("_001.txt"); QString qs_Name_2("_002.txt"); QFile::remove(qs_Name_1); QFile::remove(qs_Name_2); QFile file_1(qs_Name_1); QFile file_2(qs_Name_1); file_1.open(QIODevice::ReadWrite); file_2.open(QIODevice::ReadWrite); qDebug() << "rename:" << qs_Name_1 << "-->" << qs_Name_2 << "\t result:" << file_1.rename(qs_Name_2); qDebug() << "file_1 open mode:" << file_1.isOpen(); qDebug() << "file_2 open mode:" << file_2.isOpen(); qDebug() << "file_2 name:" << file_2.fileName(); file_2.write(QString("WTF?").toUtf8()); qDebug() << "file_2 size:" << file_2.size() << "bytes"; qDebug() << QFile(qs_Name_1).open(QIODevice::ReadOnly); qDebug() << QDir().entryList(); return 0; }
...and it's out:
rename: "_001.txt" --> "_002.txt" result: true
file_1 open mode: false
file_2 open mode: true
file_2 name: "_001.txt"
file_2 size: 4 bytes
false
(".", "..", "_002.txt", "main.cpp", "main.o", "Makefile", "badfile", "badfile.pro", "badfile.pro.user")
I create two instances of QFile with two identical fileNames and open both in Read|Write mode. After that, the file with name qs_Name_1 appears in the program directory. If I try to rename the first instance of QFile, it'll be closed and renamed, but the second one saves the connection to the file with name qs_Name_2, while its fileName() method returns qs_Name_1.