std::basic_osyncstream<CharT,Traits,Allocator>:: emit
From cppreference.com
<
cpp
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io
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basic osyncstream
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void
emit
(
)
;
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Emits all buffered output and executes any pending flushes, by calling emit() on the underlying std::basic_syncbuf .
Parameters
(none)
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!
See also
destroys the
basic_osyncstream
and emits its internal buffer
(public member function) |
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atomically transmits the entire internal buffer to the wrapped streambuf
(public member function of
std::basic_syncbuf<CharT,Traits,Allocator>
)
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