std::basic_spanstream<CharT,Traits>::basic_spanstream

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Input/output library

I/O manipulators
Print functions(C++23)
C-style I/O
Buffers
basic_streambuf
basic_filebuf
basic_stringbuf
basic_spanbuf (C++23)
strstreambuf (C++98/26*)
basic_syncbuf (C++20)
Streams
Abstractions
ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I/O
basic_ifstream
basic_ofstream
basic_fstream
String I/O
basic_istringstream
basic_ostringstream
basic_stringstream
Array I/O
basic_ispanstream (C++23)
basic_ospanstream (C++23)
basic_spanstream (C++23)
istrstream (C++98/26*)
ostrstream (C++98/26*)
strstream (C++98/26*)
Synchronized Output
basic_osyncstream (C++20)
Types
streamoff
streamsize
fpos
Error category interface
iostream_category (C++11)
io_errc (C++11)

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std::basic_spanstream

Member functions
basic_spanstream::basic_spanstream
basic_spanstream::operator=
basic_spanstream::swap
basic_spanstream::rdbuf
Underlying buffer operations
basic_spanstream::span
Non-member functions
swap(std::basic_spanstream)

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explicit basic_spanstream(std::span<CharT> s,std::ios_base::openmode mode= std::ios_base::in\|std::ios_base::out);	(1)	(since C++23)
basic_spanstream( basic_spanstream&& rhs);	(2)	(since C++23)
basic_spanstream(const basic_spanstream&)= delete;	(3)	(since C++23)

Constructs a newbasic_spanstream.

1) Uses the storage referenced bys as initial underlying buffer of the wrappedstd::basic_spanbuf device. The wrappedstd::basic_spanbuf object is constructed asbasic_spanbuf<Char, Traits>(s, mode).

2) Move constructor. Move constructs thestd::basic_iostream base subobject and the wrappedstd::basic_spanbuf from those ofrhs, and then callsset_rdbuf with the address of the wrappedstd::basic_spanbuf in*this to install it.

3) Copy constructor is deleted.basic_spanstream is not copyable.

[edit]Parameters

s - std::span referencing the storage to be use as initial underlying buffer of stream

mode

specifies stream open mode. Following constants and bit-wise OR between them may be used:

Constant	Explanation
`app`	seek to the end of stream before each write
`binary`	open inbinary mode
`in`	open for reading
`out`	open for writing
`trunc`	discard the contents of the stream when opening
`ate`	seek to the end of stream immediately after open
`noreplace`(C++23)	open in exclusive mode

other - anotherbasic_spanstream to be moved from