Macro BOOST_ONCE

Macro BOOST_ONCE_INIT

BOOST_ONCE_INIT — The call_once function and once_flag type (statically initialized to BOOST_ONCE_INIT) can be used to run a routine exactly once. This can be used to initialize data in a thread-safe manner.

Synopsis

BOOST_ONCE_INIT

Description

The implementation-defined macro BOOST_ONCE_INIT is a constant value used to initialize once_flag instances to indicate that the logically associated routine has not been run yet. See call_once for more details.