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a1dc38a567
Document and add explicit tests for empty string input:
`if(EXISTS "")` and `if(IS_DIRECTORY "")` are always false.
This avoids need for users to do extra checks due to
CMake non-short-circuit logic as below:
if("${p}")
if(EXISTS "${p}")
14 lines
377 B
CMake
14 lines
377 B
CMake
set(d "/long/path/to/directory")
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foreach(i RANGE 11)
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string(APPEND d "${d}")
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endforeach()
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string(LENGTH "${d}" dl)
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if(IS_DIRECTORY "${d}/")
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message(FATAL_ERROR "Directory should not exist!")
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else()
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message(STATUS "Directory path with length ${dl} correctly does not exist.")
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endif()
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if(IS_DIRECTORY "")
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message(FATAL_ERROR "IS_DIRECTORY \"\" should not exist")
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endif()
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