SeedSequence

class numpy::SeedSequence

numpy C++ class.

Example

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

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

Constructors

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

Signature	Return Type	Location	Example
const std::vector<uint64_t>& get_entropy()	const std::vector<uint64_t>&	NP_BITGEN.H:156	View

Joining / Splitting

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.

get_entropy (np_test_1_all.cpp:25068)

          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