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- #include <math.h>
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- double a_r = 0.666666; /* Normal aspect ratio for circles. */
- extern unsigned char gmask;
- extern unsigned gaddr;
- void gline(int, int, int, int);
- void glinr(int, int, int, int);
- void gmode();
- void gset(int, int);
- void gmap(int, int);
- int gpnt(int, int);
- void gfill(int, int, int, int);
- void gfclr(int, int, int, int);
- void gbox(int, int, int, int);
- void gboxr(int, int, int, int);
- void gfilv(int, int, int, int);
- void gfilh(int, int, int, int);
- void grset(int, int);
- void gcls();
- void gcirc(unsigned, unsigned, long);
- void grcirc(unsigned, unsigned, long);
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