class_group 0.6.1

Rust library for building IQC: cryptography based on class groups (Cl) of imaginary quadratic orders
Documentation 
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test(N) = /* check cardinalities and compatibility of forksubset/forallsubset */
{ my(l1,l2,l3,k);
  l1 = [];
  forsubset(N, s, l1 = concat(l1,s));
  if (#l1 != 2^N, error(N));

  l2 = [];
  for (k = 0, N,
    l3 = [];
    forsubset([N,k], s, l3 = concat(l3,s));
    if (#l3 != binomial(N,k),  error([N,k]));
    l2 = concat(l2, l3);
  );
  if (l1 != l2, error("size ", N));
}
test(0);
test(1);
test(2);
test(3);
test(4);
test(5);

forsubset(4,s,print(s));
\\ corner cases
forsubset([0,0],s,print(s))
forsubset(0,s,print(s))
forsubset([0,1],s,print(s))
forsubset(-1,s,)
forsubset([2,-1],s,)
\\ errors
forsubset('x,s,)