# std::basic_syncbuf<CharT,Traits,Allocator>::set_emit_on_sync

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< cpp‎ | io‎ | basic syncbuf

void set_emit_on_sync( bool b ) noexcept; |  |

Changes the current emit-on-sync policy.

The value false (the default) indicates that any flush will be postponed until a call to emit.

The value true makes flushes apply immediately.

### Parameters

b | - | new value for the emit-on-sync policy

### Example

| This section is incomplete Reason: no example

### See also

sync [virtual] | synchronizes the buffers with the associated character sequence (virtual protected member function of `std::basic_streambuf<CharT,Traits>`)
emit | atomically transmits the entire internal buffer to the wrapped streambuf (public member function)
emit_on_flushno_emit_on_flush (C++20) | controls whether a stream's `basic_syncbuf` emits on flush (function template)

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