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Showing content from https://timsong-cpp.github.io/cppwp/n4659/ofstream.cons below:

[ofstream.cons]

30 Input/output library [input.output] 30.9 File-based streams [file.streams] 30.9.4 Class template basic_­ofstream [ofstream] 30.9.4.1 basic_­ofstream constructors [ofstream.cons]

basic_ofstream();

Effects: Constructs an object of class basic_­ofstream<charT, traits>, initializing the base class with basic_­ostream(&sb) and initializing sb with basic_­filebuf<charT, traits>()) ([ostream.cons], [filebuf.cons]).

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);

Effects: Constructs an object of class basic_­ofstream<charT, traits>, initializing the base class with basic_­ostream(&sb) and initializing sb with basic_­filebuf<charT, traits>()) ([ostream.cons], [filebuf.cons]), then calls rdbuf()->open(s, mode | ios_­base​::​out). If that function returns a null pointer, calls setstate(​failbit).

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

Effects: The same as basic_­ofstream(s.c_­str(), mode).

basic_ofstream(basic_ofstream&& rhs);

Effects: Move constructs from the rvalue rhs. This is accomplished by move constructing the base class, and the contained basic_­filebuf. Next basic_­ostream<charT, traits>​::​set_­rdbuf(&sb) is called to install the contained basic_­filebuf.


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