| .. _implementation-defined-behavior: |
| |
| =============================== |
| Implementation-defined behavior |
| =============================== |
| |
| Contains the implementation details of the implementation-defined behavior in |
| libc++. Implementation-defined is mandated to be documented by the Standard. |
| |
| .. note: |
| This page is far from complete. |
| |
| |
| Implementation-defined behavior |
| =============================== |
| |
| Updating the Time Zone Database |
| ------------------------------- |
| |
| The Standard allows implementations to automatically update the |
| *remote time zone database*. Libc++ opts not to do that. Instead calling |
| |
| - ``std::chrono::remote_version()`` will update the version information of the |
| *remote time zone database*, |
| - ``std::chrono::reload_tzdb()``, if needed, will update the entire |
| *remote time zone database*. |
| |
| This offers a way for users to update the *remote time zone database* and |
| give them full control over the process. |
| |
| Listed in the index of implementation-defined behavior |
| ====================================================== |
| |
| The order of the entries matches the entries in the |
| `draft of the Standard <http://eel.is/c++draft/impldefindex>`_. |
