C++ (Cpp) GF2X::normalize Beispiele

Beispiel #1

Datei: GF2X.cpp Projekt: tell/ntl-unix

void SetCoeff(GF2X& x, long i, long val)
{
   if (i < 0) {
      LogicError("SetCoeff: negative index");
      return; // NOTE: helps the compiler optimize
   }

   val = val & 1;

   if (val) {
      SetCoeff(x, i);
      return;
   }

   // we want to clear position i

   long n;

   n = x.xrep.length();
   long wi = i/NTL_BITS_PER_LONG;

   if (wi >= n) 
      return;

   long bi = i - wi*NTL_BITS_PER_LONG;

   x.xrep[wi] &= ~(1UL << bi);
   if (wi == n-1 && !x.xrep[wi]) x.normalize();
}

Beispiel #2

Datei: GF2X.c Projekt: FredericJacobs/newNTL

void SetCoeff(GF2X& x, long i, long val)
{
   if (i < 0) {
      Error("SetCoeff: negative index");
      return;
   }

   val = val & 1;

   if (val) {
      SetCoeff(x, i);
      return;
   }

   // we want to clear position i

   long n;

   n = x.xrep.length();
   long wi = i/newNTL_BITS_PER_LONG;

   if (wi >= n) 
      return;

   long bi = i - wi*newNTL_BITS_PER_LONG;

   x.xrep[wi] &= ~(1UL << bi);
   if (wi == n-1) x.normalize();
}