mkp224o/ed25519/amd64-64-24k/sc25519_iszero.c

#include "sc25519.h"

int sc25519_iszero_vartime(const sc25519 *x)
{
  if(x->v[0] != 0) return 0;
  if(x->v[1] != 0) return 0;
  if(x->v[2] != 0) return 0;
  if(x->v[3] != 0) return 0;
  return 1;
}