Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Exception thrown when trying to add a duplicate service to an execution_context.

class service_already_exists :
  public std::logic_error

Name	Description
service_already_exists [constructor]

Header: boost/asio/execution_context.hpp

Convenience header: boost/asio/execution.hpp