diff options
Diffstat (limited to 'host/include')
| -rw-r--r-- | host/include/uhd/exception.hpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/host/include/uhd/exception.hpp b/host/include/uhd/exception.hpp index e2a50bf1e..10cd8f501 100644 --- a/host/include/uhd/exception.hpp +++ b/host/include/uhd/exception.hpp @@ -32,72 +32,105 @@ * * The code() provides an error code which allows the application * the option of printing a cryptic error message from the 1990s. + * + * The dynamic_clone() and dynamic_throw() methods allow us to: + * catch an exception by dynamic type (i.e. derived class), save it, + * and later rethrow it, knowing only the static type (i.e. base class), + * and then finally to catch it again using the derived type. + * + * http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2106.html */ namespace uhd{ struct UHD_API exception : std::runtime_error{ exception(const std::string &what); virtual unsigned code(void) const = 0; + virtual exception *dynamic_clone(void) const = 0; + virtual void dynamic_throw(void) const = 0; }; struct UHD_API assertion_error : exception{ assertion_error(const std::string &what); virtual unsigned code(void) const; + virtual assertion_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API lookup_error : exception{ lookup_error(const std::string &what); virtual unsigned code(void) const; + virtual lookup_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API index_error : lookup_error{ index_error(const std::string &what); virtual unsigned code(void) const; + virtual index_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API key_error : lookup_error{ key_error(const std::string &what); virtual unsigned code(void) const; + virtual key_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API type_error : exception{ type_error(const std::string &what); virtual unsigned code(void) const; + virtual type_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API value_error : exception{ value_error(const std::string &what); virtual unsigned code(void) const; + virtual value_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API runtime_error : exception{ runtime_error(const std::string &what); virtual unsigned code(void) const; + virtual runtime_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API not_implemented_error : runtime_error{ not_implemented_error(const std::string &what); virtual unsigned code(void) const; + virtual not_implemented_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API environment_error : exception{ environment_error(const std::string &what); virtual unsigned code(void) const; + virtual environment_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API io_error : environment_error{ io_error(const std::string &what); virtual unsigned code(void) const; + virtual io_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API os_error : environment_error{ os_error(const std::string &what); virtual unsigned code(void) const; + virtual os_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; struct UHD_API system_error : exception{ system_error(const std::string &what); virtual unsigned code(void) const; + virtual system_error *dynamic_clone(void) const; + virtual void dynamic_throw(void) const; }; /*! |