Files
CMake/Tests/RunCMake/if/AndOr.cmake
Brad King 41adfc6b04 Help: Clarify precedence of AND and OR in 'if' conditions
The wording update in commit b74819e4fe (Help: Format 'if' command
documentation, 2013-12-18, v3.0.0-rc1~227^2~1) incorrectly implied that
`AND` has higher precedence than `OR`.  Although this is common in many
languages, it has never been true in CMake's implementation.  Revise
the wording to clarify the precedence.

Add a test case demonstrating the order.

Fixes: #23207
2022-02-09 14:24:43 -05:00

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CMake

# AND and OR are the same precedence
if(1 OR 0 AND 0) # equivalent to ((1 OR 0) AND 0)
message(FATAL_ERROR "AND incorrectly evaluated before OR")
else()
message(STATUS "OR and AND correctly evaluated left to right")
endif()