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return
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------
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Return from a file, directory or function.
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.. code-block:: cmake
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return()
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Returns from a file, directory or function. When this command is
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encountered in an included file (via :command:`include` or
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:command:`find_package`), it causes processing of the current file to stop
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and control is returned to the including file. If it is encountered in a
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file which is not included by another file, e.g. a ``CMakeLists.txt``,
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control is returned to the parent directory if there is one. If return is
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called in a function, control is returned to the caller of the function.
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Note that a :command:`macro <macro>`, unlike a :command:`function <function>`,
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is expanded in place and therefore cannot handle ``return()``.
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