Containers

[deadalnix]

On Tuesday, 31 August 2021 at 23:56:51 UTC, Steven Schveighoffer 
wrote:
> I don't agree that COW is a good idea for generic collections. 
> IIRC, C++ tried this with std::string and it was a disaster.
>

You seem to be confused. The C++11 standard prohibits std::string 
from using COW. Existing C++ implementations were using COW, and 
getting out of it was what was a disaster (notably, there were 
breaking ABI changes, which the C++ ecosystem is not well suited 
to handle).