IndexBuilder

class numpy::IndexBuilder

numpy C++ class.

Example

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

// Use IndexBuilder
IndexBuilder obj;
// ... operations ...

Math Operations

Signature	Return Type	Location	Example
IndexBuilder & add(ssize_tidx)	IndexBuilder &	NP_INDEX_TYPES.H:297	View
IndexBuilder & add(const Slice &slice)	IndexBuilder &	NP_INDEX_TYPES.H:298	View
IndexBuilder & add(const NDArray<T>&array)	IndexBuilder &	NP_INDEX_TYPES.H:303	View
IndexBuilder & add_all()	IndexBuilder &	NP_INDEX_TYPES.H:299
IndexBuilder & add_ellipsis()	IndexBuilder &	NP_INDEX_TYPES.H:300
IndexBuilder & add_newaxis()	IndexBuilder &	NP_INDEX_TYPES.H:301

Other Methods

Signature	Return Type	Location	Example
IndexExpr build()	IndexExpr	NP_INDEX_TYPES.H:309

Code Examples

The following examples are extracted from the test suite.

add (np_test_1_all.cpp:6410)

void testCharArrayStringOperationsCharArray() {
    std::cout << "========= testStringOperations =======================";

    // Test string concatenation
    std::vector<std::string> words1 = {"Hello", "Good", "Nice"};
    std::vector<std::string> words2 = {" World", " Day", " Work"};

    auto arr1 = array<32>(words1);
    auto arr2 = array<32>(words2);

    auto result = add(arr1, arr2);
    // std::cout << "String concatenation (add):" << std::endl;
    for (size_t i = 0; i < result.size(); ++i) {
        // std::cout << "'" << arr1[i] << "' + '" << arr2[i] << "' = '" << result[i] << "'";
    }

    // Test scalar addition
    auto scalar_result = add(arr1, "!");
    // std::cout << "Scalar concatenation:" << std::endl;
    for (size_t i = 0; i < scalar_result.size(); ++i) {
        // std::cout << "'" << arr1[i] << "' + '!' = '" << scalar_result[i] << "'";

add (np_test_1_all.cpp:6410)

void testCharArrayStringOperationsCharArray() {
    std::cout << "========= testStringOperations =======================";

    // Test string concatenation
    std::vector<std::string> words1 = {"Hello", "Good", "Nice"};
    std::vector<std::string> words2 = {" World", " Day", " Work"};

    auto arr1 = array<32>(words1);
    auto arr2 = array<32>(words2);

    auto result = add(arr1, arr2);
    // std::cout << "String concatenation (add):" << std::endl;
    for (size_t i = 0; i < result.size(); ++i) {
        // std::cout << "'" << arr1[i] << "' + '" << arr2[i] << "' = '" << result[i] << "'";
    }

    // Test scalar addition
    auto scalar_result = add(arr1, "!");
    // std::cout << "Scalar concatenation:" << std::endl;
    for (size_t i = 0; i < scalar_result.size(); ++i) {
        // std::cout << "'" << arr1[i] << "' + '!' = '" << scalar_result[i] << "'";

add (np_test_1_all.cpp:6410)

void testCharArrayStringOperationsCharArray() {
    std::cout << "========= testStringOperations =======================";

    // Test string concatenation
    std::vector<std::string> words1 = {"Hello", "Good", "Nice"};
    std::vector<std::string> words2 = {" World", " Day", " Work"};

    auto arr1 = array<32>(words1);
    auto arr2 = array<32>(words2);

    auto result = add(arr1, arr2);
    // std::cout << "String concatenation (add):" << std::endl;
    for (size_t i = 0; i < result.size(); ++i) {
        // std::cout << "'" << arr1[i] << "' + '" << arr2[i] << "' = '" << result[i] << "'";
    }

    // Test scalar addition
    auto scalar_result = add(arr1, "!");
    // std::cout << "Scalar concatenation:" << std::endl;
    for (size_t i = 0; i < scalar_result.size(); ++i) {
        // std::cout << "'" << arr1[i] << "' + '!' = '" << scalar_result[i] << "'";