May 7, 2015 · With the introduction of c++11, trivially copyableness has gotten quite relevant. Most notably in the use of 'std::atomic'. The basics are quite simple. A class foo is trivially copyable if: foo* ...

My expectation is that copying will create a perfect value-for-value copy. A more general way of asking my question is the following: Generally speaking, what types of things can possibly cause problems …

The typical way to make a C++ object non-copyable is to explicitly declare a copy constructor and copy-assignment operator but not implement them. This will prevent the compiler from generating its own.

Nov 25, 2024 · This change comes from P3247: Deprecate the notion of trivial types. The problem with std::is_trivial is that it mixes two different checks: std::is_trivially_copyable …

Dec 19, 2024 · C++26 provides std::copyable_function [cppref link]. However, the existing std::function is already copyable. So, I have 3 questions: What are the key advantages of std::copyable_function …

Jul 11, 2016 · So, to ensure your remark: String is copyable, use .clone() String is not implicitly copyable, because that would cause non-obvious memory allocations to occur

In general, a trivially copyable type is any type for which the underlying bytes can be copied to an array of char or unsigned char and into a new object of the same type, and the resulting object would have …

Aug 11, 2015 · A class that is non-copyable can however be made movable by overloading a constructor from MyClass&&. The declaration to make the class non-copyable (above) can be in the …

Aug 9, 2015 · This is probably the most straightforward way I know of. So all you have to do is Any Header/subtitle or any text you want starting with hash, then in the next line, you add your copyable …

Sep 17, 2017 · When long tab on Text widget, a tooltip show up with 'copy'. When click on the 'copy' the text content should copy to system clipboard. The following will copy the text on long tap, but does …