cppdraft_translate/cppdraft/ofstream/cons.md

[ofstream.cons]

31 Input/output library [input.output]

31.10 File-based streams [file.streams]

31.10.5 Class template basic_ofstream [ofstream]

31.10.5.2 Constructors [ofstream.cons]

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basic_ofstream();

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Effects: Initializes the base class withbasic_ostream<charT, traits>(addressof(sb)) ([ostream.cons]) and sb withbasic_filebuf<charT, traits>() ([filebuf.cons]).

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explicit basic_ofstream(const char* s, ios_base::openmode mode = ios_base::out); explicit basic_ofstream(const filesystem::path::value_type* s, ios_base::openmode mode = ios_base::out); // wide systems only; see [[fstream.syn]](fstream.syn "31.10.1 Header <fstream> synopsis")

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Effects: Initializes the base class withbasic_ostream<charT, traits>(addressof(sb)) ([ostream.cons]) and sb withbasic_filebuf<charT, traits>() ([filebuf.cons]), then callsrdbuf()->open(s, mode | ios_base​::​out).

If that function returns a null pointer, callssetstate(​failbit).

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explicit basic_ofstream(const string& s, ios_base::openmode mode = ios_base::out);

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Effects: Equivalent to basic_ofstream(s.c_str(), mode).

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template<class T> explicit basic_ofstream(const T& s, ios_base::openmode mode = ios_base::out);

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Constraints: is_same_v<T, filesystem​::​path> is true.

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Effects: Equivalent to basic_ofstream(s.c_str(), mode).

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basic_ofstream(basic_ofstream&& rhs);

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Effects: Move constructs the base class, and the contained basic_filebuf.

Then calls basic_ostream<charT, traits>​::​set_rdbuf(​addressof(sb)) to install the contained basic_filebuf.