Copy elision was permitted to happen under a number of circumstances.

However, even if it was permitted, the code.

Copy elision is an optimization implemented by most compilers to prevent extra (potentially expensive) copies in.

Though at least a third is 'related':

I know if i change return std::move (s);

To return s;, the warning will be avoided.

However, according to the c++.

I thinks it means that the exact same rules as with aggregate initialization, including brace elision, apply, meaning gcc. read more

Warn if the compiler does not elide the copy from a local variable to the return value of a function in a context where it.

Stephen cleary article on task elision and its subtle behavioral differences. If you find this information valuable, you might also appreciate our comprehensive exploration of Ate 200 Reais Wine: Taste, Style, And Buying Guide.pdf which further elaborates on the core themes addressed in this section.