[Interest] Warning about QHash keys().toVector()
thiago.macieira at intel.com
Sun Jun 13 19:10:44 CEST 2021
On Sunday, 13 June 2021 09:20:31 PDT Kevin André wrote:
> I have the following piece of code:
> QVector<int> CompatibilityInterfaceImpl::getActionIds() const
> return _actions.keys().toVector(); // _actions is a QHash
> In Qt Creator this generates the following warning:
> allocating an unneeded temporary container [clazy-container-anti-pattern]
> How can I avoid the warning in this case?
Create the QVector container, reserve the proper size, and then iterate over
the actions hashing table inserting the keys.
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel DPG Cloud Engineering
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