ValueError
==========

.. cpp:class:: pandas::ValueError

   pandas C++ class.

Example
-------

.. code-block:: cpp

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

   // Use ValueError
   ValueError obj;
   // ... operations ...

Constructors
------------

.. list-table::
   :widths: 55 25 20
   :header-rows: 1

   * - Signature
     - Location
     - Example
   * - ``explicit ValueError(const std::string& msg) : std::invalid_argument(msg)``
     - pd_exceptions.h:28
     - :ref:`View <example-valueerror-valueerror-0>`
   * - ``explicit ValueError(const char\* msg) : std::invalid_argument(msg)``
     - pd_exceptions.h:29
     - :ref:`View <example-valueerror-valueerror-1>`


Code Examples
-------------

The following examples are extracted from the test suite.

.. _example-valueerror-valueerror-0:

.. dropdown:: ValueError (pd_test_5_all.cpp:72279)
   :class-title: example-dropdown

   .. code-block:: cpp
      :linenos:
      :lineno-start: 72269
      :emphasize-lines: 11

      }
      
      void case_5_reindex_migration_acceptance(int& local_fail) {
          std::cout << "-- case_5_reindex_migration_acceptance\n";
          // Pre-migration form (what the 8 sites currently emit).
          const std::string pre_what = "cannot reindex on an axis with duplicate labels";
      
          // Post-migration form (what the registry call emits).
          std::string post_what;
          try {
              throw pandas::ValueError(
                  std::string(pandas::error_messages::kCannotReindexDuplicate));
          } catch (const std::exception& e) {
              post_what = e.what();
          }
          check_eq_str("case_5.reindex_what_byte_equal", pre_what, post_what, local_fail);
      }
      
      void case_6_throw_via_registry(int& local_fail) {
          std::cout << "-- case_6_throw_via_registry\n";
          std::string caught;

.. _example-valueerror-valueerror-1:

.. dropdown:: ValueError (pd_test_5_all.cpp:72279)
   :class-title: example-dropdown

   .. code-block:: cpp
      :linenos:
      :lineno-start: 72269
      :emphasize-lines: 11

      }
      
      void case_5_reindex_migration_acceptance(int& local_fail) {
          std::cout << "-- case_5_reindex_migration_acceptance\n";
          // Pre-migration form (what the 8 sites currently emit).
          const std::string pre_what = "cannot reindex on an axis with duplicate labels";
      
          // Post-migration form (what the registry call emits).
          std::string post_what;
          try {
              throw pandas::ValueError(
                  std::string(pandas::error_messages::kCannotReindexDuplicate));
          } catch (const std::exception& e) {
              post_what = e.what();
          }
          check_eq_str("case_5.reindex_what_byte_equal", pre_what, post_what, local_fail);
      }
      
      void case_6_throw_via_registry(int& local_fail) {
          std::cout << "-- case_6_throw_via_registry\n";
          std::string caught;