Here is a list of all struct and union fields with links to the structures/unions they belong to:

A

B

C

D

E

F

G

H

I

K

L

M

N

O

P

Q

R

S

T

U

V

W

~

- u -

• unique_ptr_t : mqtt::ssl_options, mqtt::will_options
• UNSUBSCRIBE : mqtt::token
• unsubscribe() : mqtt::async_client, mqtt::client, mqtt::iasync_client
• update_connection_handler : mqtt::async_client, mqtt::client
• user_name() : mqtt::connect_options_builder
• USER_PROPERTY : mqtt::property