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Help: 3 subtypes of boolean generator expressions.

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Main classification by return type,
subclassification by dependences
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Joachim Wuttke (h)
2018-11-04 15:48:02 +01:00
committed by Joachim Wuttke (o)
parent 9891adf74b
commit fe8acf7c05
1 changed files with 20 additions and 10 deletions
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Help/manual/cmake-generator-expressions.7.rst
+20 -10
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@@ -63,6 +63,9 @@ They are typically used to construct the condition in a
Available boolean expressions are:
Logical Operators
-----------------
``$<BOOL:condition>``
``1`` if the ``condition`` is true, else ``0``
@@ -79,12 +82,29 @@ Available boolean expressions are:
``$<NOT:condition>``
``0`` if ``condition`` is ``1``, else ``1``
String Comparisons
------------------
``$<STREQUAL:a,b>``
``1`` if ``a`` is STREQUAL ``b``, else ``0``
``$<EQUAL:a,b>``
``1`` if ``a`` is EQUAL ``b`` in a numeric comparison, else ``0``
``$<IN_LIST:a,b>``
``1`` if ``a`` is IN_LIST ``b``, else ``0``
``$<VERSION_LESS:v1,v2>``
``1`` if ``v1`` is a version less than ``v2``, else ``0``.
``$<VERSION_GREATER:v1,v2>``
``1`` if ``v1`` is a version greater than ``v2``, else ``0``.
``$<VERSION_EQUAL:v1,v2>``
``1`` if ``v1`` is the same version as ``v2``, else ``0``.
``$<VERSION_LESS_EQUAL:v1,v2>``
``1`` if ``v1`` is a version less than or equal to ``v2``, else ``0``.
``$<VERSION_GREATER_EQUAL:v1,v2>``
``1`` if ``v1`` is a version greater than or equal to ``v2``, else ``0``.
Variable Queries
----------------
``$<TARGET_EXISTS:target>``
``1`` if ``target`` exists, else ``0``.
``$<CONFIG:cfg>``
@@ -104,16 +124,6 @@ Available boolean expressions are:
``1`` if the CMake-id of the CXX compiler matches ``compiler_id``,
otherwise ``0``.
See also the :variable:`CMAKE_<LANG>_COMPILER_ID` variable.
``$<VERSION_LESS:v1,v2>``
``1`` if ``v1`` is a version less than ``v2``, else ``0``.
``$<VERSION_GREATER:v1,v2>``
``1`` if ``v1`` is a version greater than ``v2``, else ``0``.
``$<VERSION_EQUAL:v1,v2>``
``1`` if ``v1`` is the same version as ``v2``, else ``0``.
``$<VERSION_LESS_EQUAL:v1,v2>``
``1`` if ``v1`` is a version less than or equal to ``v2``, else ``0``.
``$<VERSION_GREATER_EQUAL:v1,v2>``
``1`` if ``v1`` is a version greater than or equal to ``v2``, else ``0``.
``$<C_COMPILER_VERSION:version>``
``1`` if the version of the C compiler matches ``version``, otherwise ``0``.
See also the :variable:`CMAKE_<LANG>_COMPILER_VERSION` variable.