CMake:VariablesListsStrings: Difference between revisions

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==Scope of variables in CMake==
{{CMake/Template/Moved}}


In CMake variables don't have to be declared, they are created upon their first usage:
This page has moved [https://gitlab.kitware.com/cmake/community/wikis/doc/cmake/VariablesListsStrings here].
 
src/foo/CMakeLists.txt:
 
  set(SomeVariable "Hello world")
 
This creates (if it didn't exist yet) the variable <tt>SomeVariable</tt>.
In CMake all variables in CMake are '''global'''.
Global means that the variables exist in the file where they have been created, in all subdirectories connected using ADD_SUBDIRECTORY() or SUBDIRS(), and in all included files in any of these directories. They don't propagate up to the parent directories.
Also if the value of a variable is changed in a subdirectory, the change doesn't propagate up to the variable in the parent directory.
 
==Strings vs. lists==
 
==Emulating maps==
 
==Boolean values in CMake==
 
==Using CMake regexps==
 
==Escaping==
 
==The CMake cache==

Latest revision as of 15:41, 30 April 2018


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