Version macros
Overridable: None of the following macros are overridable.
Header: <boost/outcome/config.hpp>
- BOOST_OUTCOME_VERSION_MAJOR <number>- Major version for cmake and DLL version stamping. 
- BOOST_OUTCOME_VERSION_MINOR <number>- Minor version for cmake and DLL version stamping. 
- BOOST_OUTCOME_VERSION_PATCH <number>- Patch version for cmake and DLL version stamping. 
- BOOST_OUTCOME_VERSION_REVISION <number>- Revision version for cmake and DLL version stamping. 
- BOOST_OUTCOME_UNSTABLE_VERSION <number>- Defined between stable releases of Outcome. It means the inline namespace will be permuted per-commit to ensure ABI uniqueness such that multiple versions of Outcome in a single process space cannot collide. 
- 
The namespace configuration of this Outcome v2. Consists of a sequence of bracketed tokens later fused by the preprocessor into namespace and C++ module names. 
- BOOST_OUTCOME_V2_NAMESPACE <identifier>- The Outcome namespace, which may be permuted per SHA commit. This is not fully qualified. 
- BOOST_OUTCOME_V2_NAMESPACE_BEGIN <keywords and identifiers>- Expands into the appropriate namespace markup to enter the Outcome v2 namespace. 
- BOOST_OUTCOME_V2_NAMESPACE_EXPORT_BEGIN <keywords and identifiers>- Expands into the appropriate namespace markup to enter the C++ module exported Outcome v2 namespace. 
- BOOST_OUTCOME_V2_NAMESPACE_END <keywords and identifiers>- Expands into the appropriate namespace markup to exit the Outcome v2 namespace. 



