array decay to pointer and overload resolution

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You need to make the first overload a poorer choice when both are viable. Currently they are a tie on conversion ranking (both are “Exact Match”), and then the tie is broken because non-templates are preferred.

This ought to make the conversion ranking worse:

struct stg
{
    struct cvt { const char* p; cvt(const char* p_p) : p(p_p) {} };

    // matches const char*, but disfavored in overload ranking
    stg(cvt c_str); // use c_str.p inside :(  Or add an implicit conversion

    template<int N>
    stg(const char (&str) [N]);
};

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