std::basic_osyncstream<CharT,Traits,Allocator>::emit
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< cpp | io | basic osyncstream
C++
Input/output library
| I/O manipulators | ||||
| Print functions (C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
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(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
| Synchronized Output | ||||
(C++20) | ||||
| Types | ||||
| Error category interface | ||||
(C++11) | ||||
(C++11) |
std::basic_osyncstream
| Public member functions | ||||
(C++20) | ||||
(C++20) | ||||
basic_osyncstream::emit (C++20) |
| void emit(); |
|
Emits all buffered output and executes any pending flushes, by calling emit() on the underlying std::basic_syncbuf.
[edit] Parameters
(none)
[edit] Example
Run this code
#include <iostream> #include <syncstream> int main() { { std::osyncstream bout(std::cout); bout << "Hello," << '\n'; / no flush bout.emit(); / characters transferred; cout not flushed bout << "World!" << std::endl; / flush noted; cout not flushed bout.emit(); / characters transferred; cout flushed bout << "Greetings." << '\n'; / no flush } / destructor calls emit(): characters transferred; cout not flushed / emit can be used for local exception-handling on the wrapped stream std::osyncstream bout(std::cout); bout << "Hello, " << "World!" << '\n'; try { bout.emit(); } catch (...) { / handle exceptions } }
Output:
Hello, World! Greetings. Hello, World!
[edit] See also
destroys the basic_osyncstream and emits its internal buffer (public member function) [edit] | |
| atomically transmits the entire internal buffer to the wrapped streambuf (public member function of std::basic_syncbuf<CharT,Traits,Allocator>) [edit]
|
