[Cmake-commits] CMake branch, master, updated. v3.8.0-951-g0085701

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- Log -----------------------------------------------------------------
https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=008570150ccd23bbaa42d7543e49fbfa5d28ade4
commit 008570150ccd23bbaa42d7543e49fbfa5d28ade4
Merge: 74672e2 d0b70e6
Author:     Brad King <brad.king at kitware.com>
AuthorDate: Tue Apr 25 20:41:07 2017 +0000
Commit:     Kitware Robot <kwrobot at kitware.com>
CommitDate: Tue Apr 25 16:41:13 2017 -0400

    Merge topic 'doc-eq-delete'
    
    d0b70e67 Help/dev: Document CM_EQ_DELETE and CM_DISABLE_COPY
    
    Acked-by: Kitware Robot <kwrobot at kitware.com>
    Merge-request: !755


https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=d0b70e676e286cfa7fe1b72cafdf5f704e1038d2
commit d0b70e676e286cfa7fe1b72cafdf5f704e1038d2
Author:     Daniel Pfeifer <daniel at pfeifer-mail.de>
AuthorDate: Mon Apr 24 23:36:05 2017 +0200
Commit:     Daniel Pfeifer <daniel at pfeifer-mail.de>
CommitDate: Tue Apr 25 22:08:47 2017 +0200

    Help/dev: Document CM_EQ_DELETE and CM_DISABLE_COPY

diff --git a/Help/dev/source.rst b/Help/dev/source.rst
index 3ac9aca..7e44995 100644
--- a/Help/dev/source.rst
+++ b/Help/dev/source.rst
@@ -34,6 +34,24 @@ need to be handled with care:
   warnings about deprecated interfaces in general.  Use the ``CM_AUTO_PTR``
   macro instead.
 
+* Use ``CM_EQ_DELETE;`` instead of ``= delete;``.
+
+  Defining functions as *deleted* is not supported in C++98.  Using
+  ``CM_EQ_DELETE`` will delete the functions if the compiler supports it and
+  give them no implementation otherwise.  Calling such a function will lead
+  to compiler errors if the compiler supports *deleted* functions and linker
+  errors otherwise.
+
+* Use ``CM_DISABLE_COPY(Class)`` to mark classes as non-copyable.
+
+  The ``CM_DISABLE_COPY`` macro should be used in the private section of a
+  class to make sure that attempts to copy or assign an instance of the class
+  lead to compiler errors even if the compiler does not support *deleted*
+  functions.  As a guideline, all polymorphic classes should be made
+  non-copyable in order to avoid slicing.  Classes that are composed of or
+  derived from non-copyable classes must also be made non-copyable explicitly
+  with ``CM_DISABLE_COPY``.
+
 * Use ``size_t`` instead of ``std::size_t``.
 
   Various implementations have differing implementation of ``size_t``.

-----------------------------------------------------------------------

Summary of changes:
 Help/dev/source.rst |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)


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