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

This is the documentation for a snapshot of the develop branch, built from commit 5a46ce5992.

prepend

Completion token type used to specify that the completion handler arguments should be passed additional values before the results of the operation.

template<
    typename CompletionToken,
    typename... Values>
constexpr prepend_t< decay_t< CompletionToken >, decay_t< Values >... > prepend(
    CompletionToken && completion_token,
    Values &&... values);

Requirements

Header: boost/asio/prepend.hpp

Convenience header: boost/asio.hpp