identity_quat - Global variable containing the identity quaternion. Allegro game programming library.

       Global  variable containing the 'do nothing' identity quaternion.  Multiplying by the identity quaternion
       has no effect.

Allegro                                           version 4.4.3                           identity_quat(3alleg4)

       identity_quat - Global variable containing the identity quaternion. Allegro game programming library.

#include<allegro.h>externQUATidentity_quat;