ItemsRange

class numpy::ItemsRange

numpy C++ class.

Example

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

// Use ItemsRange
ItemsRange obj;
// ... operations ...

Other Methods

Signature	Return Type	Location	Example
ItemsIterator begin() const	ItemsIterator	df_dataframe.h:1011	View
explicit ItemsRange(const DataFrame\* df) : df\_(df)	explicit ItemsRange(const DataFrame* df) :	df_dataframe.h:1009
ItemsIterator end() const	ItemsIterator	df_dataframe.h:1015	View

Code Examples

The following examples are extracted from the test suite.

begin (np_test_1_all.cpp:6171)

    // Test sorted data generation
    std::vector<int> data = gen.generate(50, DataPattern::SORTED);

    if (!(data.size() == 50)) {
        std::string description = std::string("test_data_generator_sortedBenchmarkSorting():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(data.size() == 50)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

    // Verify data is sorted
    if (!(std::is_sorted(data.begin(), data.end()))) {
        std::string description = std::string("test_data_generator_sortedBenchmarkSorting():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(std::is_sorted(data.begin(), data.end()))";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

    // std::cout << "Sorted data generation test passed" << std::endl;

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

end (np_test_1_all.cpp:6171)

    // Test sorted data generation
    std::vector<int> data = gen.generate(50, DataPattern::SORTED);

    if (!(data.size() == 50)) {
        std::string description = std::string("test_data_generator_sortedBenchmarkSorting():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(data.size() == 50)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

    // Verify data is sorted
    if (!(std::is_sorted(data.begin(), data.end()))) {
        std::string description = std::string("test_data_generator_sortedBenchmarkSorting():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(std::is_sorted(data.begin(), data.end()))";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

    // std::cout << "Sorted data generation test passed" << std::endl;

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