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#include <stdio.h>#define ulong unsigned long#define ushort unsigned shortint Printfloat10(char *s,long double ext) {  int k;  char *e=(char *)&ext;  if (*(ulong *)e==0 && *(ushort *)(e+4)==0 && *(ulong *)(e+6)==0x7FFF8000L)    k=sprintf(s,"+INF 7FFF 80000000 00000000");  else if (*(ulong *)e==0 && *(ushort *)(e+4)==0 &&    *(ulong *)(e+6)==0xFFFF8000L)    k=sprintf(s,"-INF FFFF 80000000 00000000");  else if ((*(ulong *)(e+6) & 0x7FFF8000L)==0x7FFF8000L)    k=sprintf(s,"%cNAN %04X %08lX %08lX",(e[9] & 0x80)==0?'+':'-',    (int)(*(ushort *)(e+8)),*(ulong *)(e+4),*(ulong *)e);  else if ((*(ulong *)(e+6) & 0x7FFF0000L)==0x7FFF0000L)    k=sprintf(s,"%c??? %04X %08lX %08lX",(e[9] & 0x80)==0?'+':'-',    (int)(*(ushort *)(e+8)),*(ulong *)(e+4),*(ulong *)e);  else if ((*(ulong *)(e+6) & 0x7FFF0000L)!=0 &&    (*(ulong *)(e+6) & 0x00008000)==0)    k=sprintf(s,"%cUNORM %04X %08lX %08lX",(e[9] & 0x80)==0?'+':'-',    (int)(*(ushort *)(e+8)),*(ulong *)(e+4),*(ulong *)e);  else if (*(ulong *)e==0 && *(ushort *)(e+4)==0 &&    *(ulong *)(e+6)==0x80000000L)    k=sprintf(s,"-0.0");               // Negative floating 0.0  else if (ext==0.0)    k=sprintf(s,"0.0");                // Print 0 with decimal point  else if ((ext>=-1.e10 && ext<-1.0) || (ext>1.0 && ext<=1.e10))    k=sprintf(s,"%#.20Lg",ext);  else if ((ext>=-1.0 && ext<=-1.e-5) || (ext>=1.e-5 && ext<=1.0))    k=sprintf(s,"%#.19Lf",ext);  else    k=sprintf(s,"%#.19Le",ext);  return k;};int main(){   char buf[4096];   long double x = 0xFFFFFFFFFFFFFFFF;   Printfloat10(buf, x);   return 0;}