27 lines
536 B
C
27 lines
536 B
C
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#include "nrutil.h"
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#define MACC 6
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void mpdiv(q,r,u,v,n,m)
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int m,n;
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unsigned char q[],r[],u[],v[];
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{
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void mpinv(),mpmov(),mpmul(),mpsad(),mpsub();
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int is;
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unsigned char *rr,*s;
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rr=cvector(1,(n+MACC)<<1);
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s=cvector(1,(n+MACC)<<1);
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mpinv(s,v,n+MACC,m);
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mpmul(rr,s,u,n+MACC,n);
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mpsad(s,rr,n+MACC-1,1);
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mpmov(q,&s[2],n-m+1);
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mpmul(rr,q,v,n-m+1,m);
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mpsub(&is,&rr[1],u,&rr[1],n);
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if (is) nrerror("MACC too small in mpdiv");
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mpmov(r,&rr[n-m+1],m);
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free_cvector(s,1,(n+MACC)<<1);
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free_cvector(rr,1,(n+MACC)<<1);
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}
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#undef MACC
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