If, for the specified stream, stream.rdbuf() is a basic_syncbuf<CHAR,TRAITS,ALLOCATOR>, make stream not emit (i.e., don't transmit data to the wrapped stream buffer) when flushed, otherwise has no effect. Return stream.
Declared in <bslstl_ostream.h>
template<
class CHAR,
class TRAITS>
basic_ostream<CHAR, TRAITS>&
noemit_on_flush(basic_ostream<CHAR, TRAITS>& stream);