al_fixsin - Allegro 5 API

       This  function  finds  the  sine  of a value using a lookup table.  The input value must be a fixed point
       binary angle.

       Example:

              al_fixed angle;
              int result;

              /* Set the binary angle to 90 degrees. */
              angle = al_itofix(64);

              /* The sine of 90 degrees is one. */
              result = al_fixtoi(al_fixsin(angle));
              assert(result == 1);

       al_fixsin - Allegro 5 API

       Returns the sine of a fixed point binary format angle as a fixed point value.

Allegro reference manual                                                                      al_fixsin(3alleg5)

              #include <allegro5/allegro.h>

              al_fixed al_fixsin(al_fixed x);