MergeError

class pandas::MergeError

pandas C++ class.

Example

#include <pandas/pandas.h>
using namespace pandas;

// Use MergeError
MergeError obj;
// ... operations ...

Constructors

Signature	Location	Example
explicit MergeError(const std::string& msg) : std::invalid_argument(msg)	pd_exceptions.h:84	View
explicit MergeError(const char\* msg) : std::invalid_argument(msg)	pd_exceptions.h:85	View

Code Examples

The following examples are extracted from the test suite.

MergeError (pd_test_5_all.cpp:73286)

    std::cout << "-- case_9_merge_error_typed_throw\n";
    static_assert(std::is_base_of_v<std::invalid_argument, pandas::MergeError>,
                  "pandas::MergeError must inherit std::invalid_argument");
    static_assert(std::is_base_of_v<std::exception, pandas::MergeError>,
                  "pandas::MergeError must inherit std::exception");

    // Round-trip via constant.
    {
        std::string caught;
        try {
            throw pandas::MergeError(
                std::string(pandas::error_messages::kMergeKeysNotUniqueLeftOneToOne));
        } catch (const std::exception& e) {
            caught = e.what();
        }
        check_eq_str(
            "case_9.MergeError_round_trip_constant",
            "Merge keys are not unique in left dataset; not a one-to-one merge",
            caught,
            local_fail);
    }

MergeError (pd_test_5_all.cpp:73286)

    std::cout << "-- case_9_merge_error_typed_throw\n";
    static_assert(std::is_base_of_v<std::invalid_argument, pandas::MergeError>,
                  "pandas::MergeError must inherit std::invalid_argument");
    static_assert(std::is_base_of_v<std::exception, pandas::MergeError>,
                  "pandas::MergeError must inherit std::exception");

    // Round-trip via constant.
    {
        std::string caught;
        try {
            throw pandas::MergeError(
                std::string(pandas::error_messages::kMergeKeysNotUniqueLeftOneToOne));
        } catch (const std::exception& e) {
            caught = e.what();
        }
        check_eq_str(
            "case_9.MergeError_round_trip_constant",
            "Merge keys are not unique in left dataset; not a one-to-one merge",
            caught,
            local_fail);
    }