Asio's implementation can use std::atomic<>
in preference to boost::detail::atomic_count
.
Support for the standard atomic integer template is automatically enabled
for g++
4.5 and later, when the -std=c++0x
or -std=gnu++0x
compiler options are used. It may be
disabled by defining ASIO_DISABLE_STD_ATOMIC
,
or explicitly enabled for other compilers by defining ASIO_HAS_STD_ATOMIC
.