Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::contract::null_old — Return a null old value.
// In header: <boost/contract/old.hpp> old_value null_old();
The related old value pointer will also be null. This function is often only used by the code expanded by BOOST_CONTRACT_OLDOF
See Also:
Returns: |
Null old value. |