std::basic_osyncstream<CharT,Traits,Allocator>::get_wrapped
From cppreference.com
streambuf_type* get_wrapped() const noexcept;
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Returns a pointer to the wrapped std::basic_streambuf, obtained by calling get_wrapped() on the underlying std::basic_syncbuf.
Parameters
(none)
Example
Wrapped buffer can be safely wrapped again in a different synchronized output stream.
Run this code
#include <iostream>
#include <syncstream>
int main()
{
std::osyncstream bout1(std::cout);
bout1 << "Hello, ";
{
std::osyncstream(bout1.get_wrapped()) << "Goodbye, " << "Planet!" << '\n';
} // emits the contents of the temporary buffer
bout1 << "World!" << '\n';
} // emits the contents of bout1
Output:
Goodbye, Planet!
Hello, World!