...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
Set or clear the Content-Length field.
void content_length( boost::optional< std::uint64_t > const& value);
This function adjusts the Content-Length field as follows:
valuespecifies a value, the Content-Length field is set to the value. Otherwise
If "chunked" token appears as the last item in the Transfer-Encoding field it is unconditionally removed.
The value to set for Content-Length.