Gecode::DynamicCastFailed Gecode::Exception exception.hpp Gecode::DynamicCastFailed::DynamicCastFailed (const char *l) DynamicCastFailed const char * l Initialize with location l. Exception: dynamic cast failed Gecode::Exception Gecode::DynamicCastFailed std::exception Gecode::Exception Gecode::DynamicCastFailed std::exception Gecode::DynamicCastFailedDynamicCastFailed Gecode::DynamicCastFailedException Gecode::DynamicCastFailedwhat