arc - Draws a circular arc. Allegro game programming library.

       Draws a circular arc with centre x, y and radius r, in an anticlockwise direction starting from the angle
       a1  and ending when it reaches a2. These values are specified in 16.16 fixed point format, with 256 equal
       to a full circle, 64 a right angle, etc. Zero is to the right of the  centre  point,  and  larger  values
       rotate anticlockwise from there. Example:

          /* Draw a black arc from 4 to 1 o'clock. */
          arc(screen, SCREEN_W/2, SCREEN_H/2,
              itofix(-21), itofix(43), 50, makecol(0, 0, 0));

       arc - Draws a circular arc. Allegro game programming library.

circle(3alleg4), ellipse(3alleg4), drawing_mode(3alleg4), makecol(3alleg4)

Allegro                                           version 4.4.3                                     arc(3alleg4)

#include<allegro.h>voidarc(BITMAP*bmp,intx,y,fixedang1,ang2,intr,intcolor);