Other Smaller Removed or Deprecated Items

Deprecated Features

Deprecating shared_ptr::unique()

In C++14 shared_ptr::unique() was defined as use_count() == 1. But since use_count() is only approximation in multithreaded environments (as it doesn’t imply any synchronisation access) then unique() it not reliable.

See more information in P0521.

Deprecating <codecvt>

The <codecvt> header declares several conversion utilities: codecvt_utf8, codecvt_utf16 and ...