CMake/Help/policy/CMP0055.rst
Gregor Jasny d54617d006 break: Add policy CMP0055 to check calls strictly
Reject break() without loop scope or any arguments.

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
2014-11-25 14:14:20 -05:00

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CMP0055
-------
Strict checking for the :command:`break` command.
CMake 3.1 and lower allowed calls to the :command:`break` command
outside of a loop context and also ignored any given arguments.
This was undefined behavior.
The OLD behavior for this policy is to allow :command:`break` to be placed
outside of loop contexts and ignores any arguments. The NEW behavior for this
policy is to issue an error if a misplaced break or any arguments are found.
This policy was introduced in CMake version 3.2.
CMake version |release| warns when the policy is not set and uses
OLD behavior. Use the cmake_policy command to set it to OLD or
NEW explicitly.