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### 439. Should facets be copyable?

Section: 30.4 [locale.categories] Status: NAD Submitter: Matt Austern Opened: 2003-11-02 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

The following facets classes have no copy constructors described in the standard, which, according to the standard, means that they are supposed to use the compiler-generated defaults. Default copy behavior is probably inappropriate. We should either make these classes uncopyable or else specify exactly what their constructors do.

Related issue: 421.

            ctype_base
            ctype
            ctype_byname
            ctype<char>
            ctype_byname<char>
            codecvt_base
            codecvt
            codecvt_byname
            num_get
            num_put
            numpunct
            numpunct_byname
            collate
            collate_byname
            time_base
            time_get
            time_get_byname
            time_put
            time_put_byname
            money_get
            money_put
            money_base
            moneypunct
            moneypunct_byname
            messages_base
            messages
            messages_byname

Proposed resolution:

Rationale:

The copy constructor in the base class is private.