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treat warnings as errors in mdspan tests #328

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treat warnings as errors in mdspan tests #328

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1 change: 1 addition & 0 deletions tests/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ macro(mdspan_add_test name)
add_executable(${name} ${name}.cpp)
target_link_libraries(${name} mdspan gtest_main)
add_test(${name} ${name})
set_property(TARGET ${name} PROPERTY COMPILE_WARNING_AS_ERROR ON)
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This isn't supported by the (admittedly quite old) minimum CMake version we require. I'd suggest an option (i.e. MDSPAN_WARNINGS_AS_ERRORS) that defaults to ON and then we use custom cmake logic to set the associated flags. Alternatively, I'd support bumping our minimum cmake version to 3.24 but not sure how others feel about that :P

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People may want the option to turn off warnings-as-errors for tests, especially since different compilers emit different warnings (some of which are spurious). A CMake option sounds like something we would want anyway.

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agreed -- though I just found out with COMPILE_WARNING_AS_ERROR you can pass --compile-no-warning-as-error to cmake to suppress it. But that's only with cmake 3.24

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Neat! That sounds particularly useful, esp. for people who have to configure for MSVC but don't know what flag to use.

endmacro()

if(MDSPAN_USE_SYSTEM_GTEST)
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