Primary dependencies for timer

chrono

<boost/chrono/chrono.hpp>

config

<boost/config.hpp>

<boost/config/abi_prefix.hpp>

<boost/config/abi_suffix.hpp>

<boost/config/auto_link.hpp>

<boost/config/header_deprecated.hpp>

<boost/cstdint.hpp>

<boost/limits.hpp>

core

<boost/noncopyable.hpp>

io

<boost/io/ios_state.hpp>

predef

<boost/predef.h>

system

<boost/cerrno.hpp>

<boost/system/api_config.hpp>

throw_exception

<boost/throw_exception.hpp>

Secondary dependencies for timer

chrono

core

system

throw_exception

mpl

ratio

typeof

utility

variant2

Reverse dependencies for timer