const al_fixed al_fixtorad_r = (al_fixed)1608;
Introduced in 5.0.0

This constant gives a ratio which can be used to convert a fixed point number in binary angle format to a fixed point number in radians.


    al_fixed rad_angle, binary_angle;

    /* Set the binary angle to 90 degrees. */
    binary_angle = 64;

    /* Now convert to radians (about 1.57). */
    rad_angle = al_fixmul(binary_angle, al_fixtorad_r);

See also: al_fixmul, al_radtofix_r.