FBBuilder

class numpy::FBBuilder

numpy C++ class.

Example

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

// Use FBBuilder
FBBuilder obj;
// ... operations ...

Other Methods

Signature	Return Type	Location	Example
int32_t current_offset() const	int32_t	df_dataframe.h:21581
void pad(size_t alignment)	void	df_dataframe.h:21545	View
pad(4)		df_dataframe.h:21550	View
pad(4)		df_dataframe.h:21559	View
void write_i16(int16_t val)	void	df_dataframe.h:21563
void write_i32(int32_t val)	void	df_dataframe.h:21568
void write_i64(int64_t val)	void	df_dataframe.h:21575
int32_t write_string(const std::string& s)	int32_t	df_dataframe.h:21549

Code Examples

The following examples are extracted from the test suite.

pad (np_test_1_all.cpp:18733)

    std::cout << "========= testPadding =======================";

    // Create test array
    auto array = createInt32Array({ 2, 2 }, 0);
    array.setElementAt({ 0, 0 }, 1);
    array.setElementAt({ 0, 1 }, 2);
    array.setElementAt({ 1, 0 }, 3);
    array.setElementAt({ 1, 1 }, 4);

    // Test constant padding
    auto padded_const = pad(array, 1, "constant", 0);
    if (!(padded_const.getShape()[0] == 4)) {
        std::string description = std::string("testPadding():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(padded_const.getShape()[0] == 4)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }
    if (!(padded_const.getShape()[1] == 4)) {
        std::string description = std::string("testPadding():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(padded_const.getShape()[1] == 4)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

pad (np_test_1_all.cpp:18733)

    std::cout << "========= testPadding =======================";

    // Create test array
    auto array = createInt32Array({ 2, 2 }, 0);
    array.setElementAt({ 0, 0 }, 1);
    array.setElementAt({ 0, 1 }, 2);
    array.setElementAt({ 1, 0 }, 3);
    array.setElementAt({ 1, 1 }, 4);

    // Test constant padding
    auto padded_const = pad(array, 1, "constant", 0);
    if (!(padded_const.getShape()[0] == 4)) {
        std::string description = std::string("testPadding():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(padded_const.getShape()[0] == 4)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }
    if (!(padded_const.getShape()[1] == 4)) {
        std::string description = std::string("testPadding():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(padded_const.getShape()[1] == 4)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }

pad (np_test_1_all.cpp:18733)

    std::cout << "========= testPadding =======================";

    // Create test array
    auto array = createInt32Array({ 2, 2 }, 0);
    array.setElementAt({ 0, 0 }, 1);
    array.setElementAt({ 0, 1 }, 2);
    array.setElementAt({ 1, 0 }, 3);
    array.setElementAt({ 1, 1 }, 4);

    // Test constant padding
    auto padded_const = pad(array, 1, "constant", 0);
    if (!(padded_const.getShape()[0] == 4)) {
        std::string description = std::string("testPadding():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(padded_const.getShape()[0] == 4)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }
    if (!(padded_const.getShape()[1] == 4)) {
        std::string description = std::string("testPadding():") + __FILE__ + ":" + std::to_string(__LINE__) + ": !(padded_const.getShape()[1] == 4)";
        std::cout << std::string("[FAIL] ") + description << std::endl;
        throw std::runtime_error(description);
    }