Defined in header <ostream> | ||
---|---|---|
template< class CharT, class Traits > std::basic_ostream<CharT, Traits>& emit_on_flush( std::basic_ostream<CharT, Traits>& os ); | (1) | (since C++20) |
template< class CharT, class Traits > std::basic_ostream<CharT, Traits>& no_emit_on_flush( std::basic_ostream<CharT, Traits>& os ); | (2) | (since C++20) |
If os.rdbuf()
actually points to a std::basic_syncbuf<CharT, Traits, Allocator>
buf
, toggles whether it emits (i.e., transmits data to the underlying stream buffer) when flushed:
buf.set_emit_on_sync(true)
buf.set_emit_on_sync(false)
Otherwise, these manipulators have no effect.
This is an output-only I/O manipulator, it may be called with an expression such as out << std::emit_on_flush
for any out
of type std::basic_ostream
.
os | - | reference to output stream |
os
(reference to the stream after manipulation).
changes the current emit-on-sync policy (public member function of std::basic_syncbuf<CharT,Traits,Allocator> ) |
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