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Error reporting
===============
In addition to `cppy::ptr`, cppy provides a set a convenience function for
reporting errors which all return a NULL pointer allowing them to be used as
follows:
.. code:: c++
PyObject* function( PyObject* obj )
{
cppy::ptr obj_ptr( cppy::incref( obj ) );
if( !obj_ptr.is_bool() )
return type_error( obj_ptr.get(), 'bool' )
return obj_ptr.get()
}
Functions
---------
Functions taking two arguments provide sensible pre-formated error messages.
.. code:: c++
inline PyObject* system_error( const char* message )
inline PyObject* type_error( const char* message )
inline PyObject* type_error( PyObject* ob, const char* expected )
inline PyObject* value_error( const char* message )
inline PyObject* runtime_error( const char* message )
inline PyObject* attribute_error( const char* message )
inline PyObject* attribute_error( PyObject* ob, const char* attr )
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