| list |
| ---- |
| |
| List operations. |
| |
| :: |
| |
| list(LENGTH <list> <output variable>) |
| list(GET <list> <element index> [<element index> ...] |
| <output variable>) |
| list(APPEND <list> [<element> ...]) |
| list(FIND <list> <value> <output variable>) |
| list(INSERT <list> <element_index> <element> [<element> ...]) |
| list(REMOVE_ITEM <list> <value> [<value> ...]) |
| list(REMOVE_AT <list> <index> [<index> ...]) |
| list(REMOVE_DUPLICATES <list>) |
| list(REVERSE <list>) |
| list(SORT <list>) |
| |
| LENGTH will return a given list's length. |
| |
| GET will return list of elements specified by indices from the list. |
| |
| APPEND will append elements to the list. |
| |
| FIND will return the index of the element specified in the list or -1 |
| if it wasn't found. |
| |
| INSERT will insert elements to the list to the specified location. |
| |
| REMOVE_AT and REMOVE_ITEM will remove items from the list. The |
| difference is that REMOVE_ITEM will remove the given items, while |
| REMOVE_AT will remove the items at the given indices. |
| |
| REMOVE_DUPLICATES will remove duplicated items in the list. |
| |
| REVERSE reverses the contents of the list in-place. |
| |
| SORT sorts the list in-place alphabetically. |
| |
| The list subcommands APPEND, INSERT, REMOVE_AT, REMOVE_ITEM, |
| REMOVE_DUPLICATES, REVERSE and SORT may create new values for the list |
| within the current CMake variable scope. Similar to the SET command, |
| the LIST command creates new variable values in the current scope, |
| even if the list itself is actually defined in a parent scope. To |
| propagate the results of these operations upwards, use SET with |
| PARENT_SCOPE, SET with CACHE INTERNAL, or some other means of value |
| propagation. |
| |
| NOTES: A list in cmake is a ; separated group of strings. To create a |
| list the set command can be used. For example, set(var a b c d e) |
| creates a list with a;b;c;d;e, and set(var "a b c d e") creates a |
| string or a list with one item in it. (Note macro arguments are not |
| variables, and therefore cannot be used in LIST commands.) |
| |
| When specifying index values, if <element index> is 0 or greater, it |
| is indexed from the beginning of the list, with 0 representing the |
| first list element. If <element index> is -1 or lesser, it is indexed |
| from the end of the list, with -1 representing the last list element. |
| Be careful when counting with negative indices: they do not start from |
| 0. -0 is equivalent to 0, the first list element. |