SeedSequence
============

.. cpp:class:: numpy::SeedSequence

   numpy C++ class.

Example
-------

.. code-block:: cpp

   #include <numpy/np_ndarray.h>
   using namespace numpy;

   // Use SeedSequence
   SeedSequence obj;
   // ... operations ...

Constructors
------------

.. list-table::
   :widths: 55 25 20
   :header-rows: 1

   * - Signature
     - Location
     - Example
   * - ``SeedSequence(std::optional<std::vector<uint64_t>>entropy = std::nullopt)``
     - NP_BITGEN.H:101
     - 
   * - ``SeedSequence(uint64_tseed)``
     - NP_BITGEN.H:120
     - 

Indexing / Selection
--------------------

.. list-table::
   :widths: 40 20 15 25
   :header-rows: 1

   * - Signature
     - Return Type
     - Location
     - Example
   * - ``const std::vector<uint64_t>& get_entropy()``
     - const std::vector<uint64_t>&
     - NP_BITGEN.H:156
     - :ref:`View <example-seedsequence-get_entropy-0>`

Joining / Splitting
-------------------

.. list-table::
   :widths: 40 20 15 25
   :header-rows: 1

   * - Signature
     - Return Type
     - Location
     - Example
   * - ``uint64_t splitmix64(uint64_t &x)``
     - uint64_t
     - NP_BITGEN.H:89
     - 


Code Examples
-------------

The following examples are extracted from the test suite.

.. _example-seedsequence-get_entropy-0:

.. dropdown:: get_entropy (np_test_1_all.cpp:25068)
   :class-title: example-dropdown

   .. code-block:: cpp
      :linenos:
      :lineno-start: 25058
      :emphasize-lines: 11

                break;
              }
            }
      
            if (!same) {
              std::cout << "  [FAIL] : in np_test_bitgen_seedsequence() : not reproducible";
              throw std::runtime_error("np_test_bitgen_seedsequence failed");
            }
      
            // Test entropy
            auto entropy = ss.get_entropy();
            if (entropy.empty()) {
              std::cout << "  [FAIL] : in np_test_bitgen_seedsequence() : entropy empty";
              throw std::runtime_error("np_test_bitgen_seedsequence failed");
            }
      
            std::cout << " -> tests passed" << std::endl;
          }
      
          // ============================================================================
          // GENERATOR TESTS