Vectorize

class numpy::Vectorize

numpy C++ class.

Example

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

// Use Vectorize
Vectorize obj;
// ... operations ...

Constructors

Signature	Location	Example
Vectorize(Funcfunc, const VectorizeOptions &opts = VectorizeOptions{})	NP_VECTORIZE.H:76

Operators

Signature	Return Type	Location	Example
auto -> NDArray<std::invoke_result_t<Func, T>> operator()(const NDArray<T>&arr)	auto -> NDArray<std::invoke_result_t<Func, T>>	NP_VECTORIZE.H:92
auto -> NDArray<std::invoke_result_t<Func, T1, T2>> operator()(const NDArray<T1>&arr1, const NDArray<T2>&arr2)	auto -> NDArray<std::invoke_result_t<Func, T1, T2>>	NP_VECTORIZE.H:111
auto -> NDArray<std::invoke_result_t<Func, T1, T2, T3>> operator()(const NDArray<T1>&arr1, const NDArray<T2>&arr2, const NDArray<T3>&arr3)	auto -> NDArray<std::invoke_result_t<Func, T1, T2, T3>>	NP_VECTORIZE.H:145

Indexing / Selection

Signature	Return Type	Location	Example
size_t getCacheSize()	size_t	NP_VECTORIZE.H:193	View
const VectorizeOptions & getOptions()	const VectorizeOptions &	NP_VECTORIZE.H:187
const Signature & getSignature()	const Signature &	NP_VECTORIZE.H:182	View

Other Methods

Signature	Return Type	Location	Example
void clearCache()	void	NP_VECTORIZE.H:192

Code Examples

The following examples are extracted from the test suite.

getCacheSize (np_test_1_all.cpp:15260)

      // Verify results are identical
      for (size_t i = 0; i < 3; ++i) {
        if (std::abs(result_1.getElementAt({ i }) - result_2.getElementAt({ i })) > 1e-15) {
          test11_pass = false;
          break;
        }
      }

      if (test11_pass) {
        // std::cout << "[OK] Caching performance works correctly (cache hits: "
          // << cached_vectorized.getCacheSize() << ")" << std::endl;
        std::cout << " -> tests passed" << std::endl;
      }
      else {
        std::cout << "[FAIL] Caching performance failed" << std::endl;
        errors++;
      }

      // Test 12: Error handling
      std::cout << "========= test_error_handling =======================" ;

getSignature (np_test_1_all.cpp:15167)

        errors++;
      }

      // Test 9: Signature parsing
      std::cout << "========= test_signature_parsing =======================" ;

      auto dot_product = [](double x, double y) { return x * y; };
      auto vectorized_dot = numpy::vectorize(dot_product, "(n),(n)->()");

      // Test that signature is parsed correctly
      auto info = vectorized_dot.getSignature();
      std::cout << info.isValid() << "," << info.numInputs() << "," << info.numOutputs() << "";
      bool test9_pass = info.isValid() && info.numInputs() == 2 && info.numOutputs() == 1;

      if (test9_pass) {
        // std::cout << "[OK] Signature parsing works correctly";
        std::cout << " -> tests passed" << std::endl;
      }
      else {
        std::cout << "[FAIL] Signature parsing failed" << std::endl;
        errors++;