Keyword Analysis & Research: qhash
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QHash Class | Qt Core 6.7.1
https://doc.qt.io/qt-6/qhash.html
WEBThe QHash class is a template class that provides a hash-table-based dictionary. More... List of all members, including inherited members. Deprecated members. QHash is part of Implicitly Shared Classes. Note: All functions in this class are reentrant. Public Types. Public Functions. Related Non-Members. Detailed Description.
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Understanding what QHash does when key not found
https://stackoverflow.com/questions/39973392/understanding-what-qhash-does-when-key-not-found
WEBOct 11, 2016 · With find you can check whether the key is in the list and if not it point to the end() iterator of the hash. QHash< Key,Value >::const_iterator valueIt = hash.find(<something>) if(valueIt == hash.end()) { // not found. error handling etc. }
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Qt 4.8: QHash Class Reference - University of Texas at Austin
https://het.as.utexas.edu/HET/Software/html/qhash.html
WEBThe QHash class is a template class that provides a hash-table-based dictionary. QHash<Key, T> is one of Qt's generic container classes. It stores (key, value) pairs and provides very fast lookup of the value associated with a key. QHash provides very similar functionality to QMap.
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Container Classes | Qt Core 6.7.1
https://doc.qt.io/qt-6/containers.html
WEBThe Container Classes. Qt provides the following sequential containers: QList, QStack, and QQueue. For most applications, QList is the best type to use. It provides very fast appends. If you really need a linked-list, use std::list. QStack and QQueue are convenience classes that provide LIFO and FIFO semantics.
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Qt5 Tutorial QHash - 2020
https://www.bogotobogo.com/Qt/Qt5_QHash.php
WEBIn this tutorial, we will learn about QHash. The QHash class is a template class that provides a hash-table-based dictionary. QHash<Key, T> is one of Qt's generic container classes. It stores (key, value) pairs and provides very …
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c++ - Using QHash in a custom class - Stack Overflow
https://stackoverflow.com/questions/19805207/using-qhash-in-a-custom-class
WEBYou need the global qHash() function. A QHash's key type has additional requirements other than being an assignable data type: it must provide operator== (), and there must also be a qHash () function in the type's namespace …
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QHash Class | Qt Core 5.7 - Massachusetts Institute of Technology
https://stuff.mit.edu/afs/athena/software/texmaker_v5.0.2/qt57/doc/qtcore/qhash.html
WEBThe QHash class is a template class that provides a hash-table-based dictionary. QHash <Key, T> is one of Qt's generic container classes. It stores (key, value) pairs and provides very fast lookup of the value associated with a key. QHash provides very similar functionality to QMap.
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iterator Class | Qt Core 6.7.1
https://doc.qt.io/qt-6/qhash-iterator.html
WEBConst iterators are slightly faster, and can improve code readability. The default QHash::iterator constructor creates an uninitialized iterator. You must initialize it using a QHash function like QHash::begin (), QHash::end (), or QHash::find () …
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New in Qt 6.1: std::hash Support for QHash - KDAB
https://www.kdab.com/qt-6-1-stdhash-support/
WEBMay 27, 2021 · qHash (T) std::hash () (t, seed) std::hash () (t) Using the third option with a defaulted seed argument allows Qt to still provide a seed to your hashing function, and your type to still be usable in a Standard Library associative container: class MyClass { // ... }; namespace std { template <> struct hash<MyClass> {
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How to Combine multiple QHashes into one QHash - Stack Overflow
https://stackoverflow.com/questions/24375445/how-to-combine-multiple-qhashes-into-one-qhash
WEB2 Answers. Sorted by: 8. I suppose you are looking for QHash::unite(). As stated in the linked documentation: Inserts all the items in the other hash into this hash. If a key is common to both hashes, the resulting hash will contain the key multiple times. edited Jul 27, 2018 at 11:33. BaCaRoZzo. 7,562 6 52 84. answered Jun 23, 2014 at 22:42.
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