[Qt-interest] QMultiHash operator== not working as expected

[Christian]

Hi all,
 
I am working with Qt 4.4 and i have 2 QMultiHash<QString, int>. I want
to compare both hashes. The problem is that i only get true for the
comparison when the items in both hashes are inserted in same order. Let
me give you some code.
 
#include <QString>
#include <QMultiHash>
 
#include <iostream>
 
int main(int argc, char* argv[]) {
    QMultiHash<QString, int> hash1;
    QMultiHash<QString, int> hash2;
 
    hash1.insert("a", 1);
    hash1.insert("a", 2);
    hash2.insert("a", 2);
    hash2.insert("a", 1);
 
    // the output is: "unequal"
    if (hash1 == hash2)
        std::cout << "equal" << std::endl;
    else
        std::cout << "unequal" << std::endl;
 
    hash2.clear();
    hash2.insert("a", 1);
    hash2.insert("a", 2);
 
    // the output is: "equal"
    if (hash1 == hash2)
        std::cout << "equal" << std::endl;
    else
        std::cout << "unequal" << std::endl;
 
    return 0;
}
 
If i look into documentation for the operator the following is stated:
"Two hashes are considered equal if they contain the same (key, value)
pairs." So in my opinion both comparisons in my code should return true
but that is not the case. Is this behaviour intended? If so, what
structure can i use instead?
 
Best Regards
Christian
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20091002/226b3cd6/attachment.html