cpp_qcbbinom() that may change input
p, tol and max_iter.Add const keywords to UnirootEqn input
of cpp_uniroot(), so that it may take a constant pointer to
a UnirootEqn object, a pointer to a constant
UnirootEqn object, or both.
Use BH package to compute generalized hypergeometric
functions and their numerical derivatives; also use NULL
for self-determined tolerance.
Add precision level in generalized hypergeometric functions for flexible trade-off of computational accuracy and time.
Use hypergeo2 package to compute generalized
hypergeometric function at high precision.