/* $Id: H:/drh/idioms/book/RCS/xp.doc,v 1.10 1996/06/26 23:02:01 drh Exp $ */#ifndef XP_INCLUDED#define XP_INCLUDED#define T XP_Ttypedef unsigned char *T;extern int XP_add(int n, T z, T x, T y, int carry);extern int XP_sub(int n, T z, T x, T y, int borrow);extern int XP_mul(T z, int n, T x, int m, T y);extern int XP_div(int n, T q, T x, int m, T y, T r,T tmp);extern int XP_sum     (int n, T z, T x, int y);extern int XP_diff    (int n, T z, T x, int y);extern int XP_product (int n, T z, T x, int y);extern int XP_quotient(int n, T z, T x, int y);extern int XP_neg(int n, T z, T x, int carry);extern int XP_cmp(int n, T x, T y);extern void XP_lshift(int n, T z, int m, T x,	int s, int fill);extern void XP_rshift(int n, T z, int m, T x,	int s, int fill);extern int           XP_length (int n, T x);extern unsigned long XP_fromint(int n, T z,	unsigned long u);extern unsigned long XP_toint  (int n, T x);extern int   XP_fromstr(int n, T z, const char *str,	int base, char **end);extern char *XP_tostr  (char *str, int size, int base,	int n, T x);#undef T#endif