Issue 439: Should facets be copyable? (original) (raw)

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439. Should facets be copyable?

Section: 28.3.4 [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(i).

    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.