| CMP0121 | |
| ------- | |
| .. versionadded:: 3.21 | |
| The :command:`list` command now detects invalid indices. | |
| Prior to CMake version 3.21, the :command:`list` command's ``GET``, | |
| ``INSERT``, ``SUBLIST``, and ``REMOVE_AT`` subcommands did not detect invalid | |
| index arguments. | |
| The ``OLD`` behavior of this policy is for invalid indices to be treated as | |
| their integer value (if any) at the start of the string. For example, | |
| ``2good4you`` is a ``2`` and ``not_an_integer`` is a ``0``. The ``NEW`` | |
| behavior is for invalid indices to trigger an error. | |
| .. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.21 | |
| .. |WARNS_OR_DOES_NOT_WARN| replace:: warns | |
| .. include:: include/STANDARD_ADVICE.rst | |
| .. include:: include/DEPRECATED.rst |