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get_vector_rotation_quat(3)     Allegro manual     get_vector_rotation_quat(3)

NAME
       get_vector_rotation_quat - Constructs a quaternion to rotate points
       around a vector. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void get_vector_rotation_quat(QUAT *q, float x, y, z, float a);

DESCRIPTION
       Constructs a quaternion that will rotate points around the specified
       x,y,z vector by the specified angle (given in binary, 256 degrees to a
       circle format).

Allegro                          version 4.4.2     get_vector_rotation_quat(3)