API Changes:
`string_param`, which was previously the argument type when setting field values
has been replaced by `string_view`. Because of this, it is no longer possible to
set message field values directly as integrals.
Users are required to convert numeric arguments to a string type prior to calling
`fields::set` et. al.
Beast provides the non-allocating `to_static_string()` function for this purpose.
To set Content-Length field manually, call `message::content_length`.
fixes#1956
clang complains about missing initializer (even though the field was
properly initialized by the default constructor).
Signed-off-by: Damian Jarek <damian.jarek93@gmail.com>
The `temporary_buffer<A>` class template replaces the use of
`static_string` in `http::fields`, simplifying `set_chunked_impl` and
`set_keep_alive_impl`.
Signed-off-by: Damian Jarek <damian.jarek93@gmail.com>
Not using lambdas in this case reduced the number of instantiations of
the algorithm by a factor of 4x at no (observable) runtime cost.
Signed-off-by: Damian Jarek <damian.jarek93@gmail.com>
