`BOOST_OUTCOME_THREAD_LOCAL`

Compiler-specific markup used to mark variables as having thread local storage duration.

note

This isn’t used inside Outcome, but is used by its unit test suite.

Overridable: Define before inclusion.

Default: To thread_local if the compiler implements C++ 11 thread_local, else __thread for the one supported compiler (older Mac OS XCode) which does not.

Header: <boost/outcome/config.hpp>