SQLLEN application_data_buffer::get_data_at_exec_size()

in modules/platforms/cpp/ignite/odbc/app/application_data_buffer.cpp [1526:1598]

• 55 lines of code
• 25 McCabe index (conditional complexity)

SQLLEN application_data_buffer::get_data_at_exec_size() const {
    switch (m_type) {
        case odbc_native_type::AI_WCHAR:
        case odbc_native_type::AI_CHAR:
        case odbc_native_type::AI_BINARY: {
            const SQLLEN *res_len_ptr = get_result_len();

            if (!res_len_ptr)
                return 0;

            auto s_len = static_cast<std::int32_t>(*res_len_ptr);

            if (s_len <= SQL_LEN_DATA_AT_EXEC_OFFSET)
                s_len = SQL_LEN_DATA_AT_EXEC(s_len);
            else
                s_len = 0;

            if (m_type == odbc_native_type::AI_WCHAR)
                s_len *= 2;

            return s_len;
        }

        case odbc_native_type::AI_SIGNED_SHORT:
            return static_cast<SQLLEN>(sizeof(SQLSMALLINT));
        case odbc_native_type::AI_UNSIGNED_SHORT:
            return static_cast<SQLLEN>(sizeof(SQLUSMALLINT));

        case odbc_native_type::AI_SIGNED_LONG:
            return static_cast<SQLLEN>(sizeof(SQLINTEGER));
        case odbc_native_type::AI_UNSIGNED_LONG:
            return static_cast<SQLLEN>(sizeof(SQLUINTEGER));

        case odbc_native_type::AI_FLOAT:
            return static_cast<SQLLEN>(sizeof(SQLFLOAT));

        case odbc_native_type::AI_DOUBLE:
            return static_cast<SQLLEN>(sizeof(SQLDOUBLE));

        case odbc_native_type::AI_BIT:
            return static_cast<SQLLEN>(sizeof(SQLCHAR));
        case odbc_native_type::AI_SIGNED_TINYINT:
            return static_cast<SQLLEN>(sizeof(SQLSCHAR));
        case odbc_native_type::AI_UNSIGNED_TINYINT:
            return static_cast<SQLLEN>(sizeof(SQLCHAR));

        case odbc_native_type::AI_SIGNED_BIGINT:
        case odbc_native_type::AI_UNSIGNED_BIGINT:
            return static_cast<SQLLEN>(sizeof(SQLBIGINT));

        case odbc_native_type::AI_TDATE:
            return static_cast<SQLLEN>(sizeof(SQL_DATE_STRUCT));

        case odbc_native_type::AI_TTIME:
            return static_cast<SQLLEN>(sizeof(SQL_TIME_STRUCT));

        case odbc_native_type::AI_TTIMESTAMP:
            return static_cast<SQLLEN>(sizeof(SQL_TIMESTAMP_STRUCT));

        case odbc_native_type::AI_NUMERIC:
            return static_cast<SQLLEN>(sizeof(SQL_NUMERIC_STRUCT));

        case odbc_native_type::AI_GUID:
            return static_cast<SQLLEN>(sizeof(SQLGUID));

        case odbc_native_type::AI_DEFAULT:
        case odbc_native_type::AI_UNSUPPORTED:
        default:
            break;
    }

    return 0;
}