ScalarBroadcast

class numpy::ScalarBroadcast

numpy C++ class.

Example

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

// Use ScalarBroadcast
ScalarBroadcast obj;
// ... operations ...

Constructors

Signature	Location	Example
ScalarBroadcast(const T &scalar)	NP_VECTORIZE_BROADCAST.H:361

Indexing / Selection

Signature	Return Type	Location	Example
const T & getElementAt(const std::vector<size_t>&)	const T &	NP_VECTORIZE_BROADCAST.H:369	View
size_t getSize()	size_t	NP_VECTORIZE_BROADCAST.H:372	View
const T & getValue()	const T &	NP_VECTORIZE_BROADCAST.H:363	View

Code Examples

The following examples are extracted from the test suite.

getElementAt (np_test_1_all.cpp:49)

using namespace numpy::benchmark;
using namespace numpy::char_;

// Helper functions for array comparison tests
namespace {
    const double TOLERANCE = 1e-10;

    bool allTrue(const NDArray<bool>& arr) {
        std::vector<size_t> indices(arr.getShape().size(), 0);
        do {
            if (!arr.getElementAt(indices)) {
                return false;
            }
        } while (incrementIndices(indices, arr.getShape()));
        return true;
    }

    bool allFalse(const NDArray<bool>& arr) {
        std::vector<size_t> indices(arr.getShape().size(), 0);
        do {
            if (arr.getElementAt(indices)) {

getSize (np_test_1_all.cpp:2172)

    }

    std::cout << " -> tests passed" << std::endl;
}

void testArrayEdgeCases() {
    std::cout << "========= testArrayEdgeCases =======================";

    // Test 1: Empty arrays
    NDArray<object_> empty_array = createObjectZeros({0});
    if (!(empty_array.getSize() == 0)) {
        std::string description = std::string("testArrayEdgeCases():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(empty_array.getSize() == 0)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }
    if (!(empty_array.getShape() == std::vector<size_t>{0})) {
        std::string description = std::string("testArrayEdgeCases():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(empty_array.getShape() == std::vector<size_t>{0})";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

getValue (np_test_1_all.cpp:28799)

      std::cout << " -> tests passed" << std::endl;
    }

    void np_test_datetime64_accessors() {
      std::cout << "========= datetime64 accessors: getValue/getUnit =======================";

      auto dt = numpy::datetime64("2024-01-15");

      // Test getValue and getUnit
      int64_t value = dt.getValue();
      numpy::DateTimeUnit unit = dt.getUnit();

      bool passed = (value != 0);

      if (!passed) {
        std::cout << "  [FAIL] : in np_test_datetime64_accessors() : Accessor methods failed";
        throw std::runtime_error("np_test_datetime64_accessors failed");
      }

      std::cout << " -> tests passed" << std::endl;