Keyword Analysis & Research: clazy container anti pattern


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Frequently Asked Questions

How do I fix the containerization anti-pattern?

There is no easy fix for this anti-pattern other than reading about the nature of containers, their building blocks, and their history (going all the way back to the venerable chroot).

What is Clazy and how does it work?

In a previous blog post we introduced clazy, a clang plugin which makes the compiler understand Qt semantics, allowing you to get compile-time warnings about Qt best practices ranging from unneeded memory allocations to misuse of API, including fix-its for automatic refactoring.

When should you not use macros in Clazy?

Conversely, you should not use those macros when calling something other than a signal. clazy will warn if you forget to use emit (or Q_EMIT) or if you use them when you shouldn’t. Finds temporary containers being created needlessly due to careless API misuse.

What is the use of warn in a temporary container?

Warns when calling non-const member functions on temporary containers. In the example above, the container detaches, causing a needless deep-copy of all elements. Suggests usage of reserve () calls. Whenever you know how many elements a container will hold, you should reserve space in order to avoid repeated memory allocations.


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