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CMake/Tests/CompileFeatures/genex_test.cpp

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Features: Add COMPILE_FEATURES generator expression. Allow setting build properties based on the features available for a target. The availability of features is determined at generate-time by evaluating the link implementation. Ensure that the <LANG>_STANDARD determined while evaluating COMPILE_FEATURES in the link implementation is not lower than that provided by the INTERFACE of the link implementation. This is similar to handling of transitive properties such as POSITION_INDEPENDENT_CODE.
2014-05-15 13:32:30 +04:00
#if !HAVE_OVERRIDE_CONTROL
Features: Test an expectation of whether OVERRIDE_CONTROL is expected The tests below test the presence of both cxx_final and cxx_override, only one of which is supported by MSVC. The test is in part intended to verify that the COMPILE_FEATURES genex supports multiple arguments and allows users to define names for groups of features (Clang already calls cxx_final and cxx_override 'override control' as a group). Keep the test, and allow the expectation to be set as appropriate.
2015-01-03 16:57:31 +03:00
#if EXPECT_OVERRIDE_CONTROL
Features: Add COMPILE_FEATURES generator expression. Allow setting build properties based on the features available for a target. The availability of features is determined at generate-time by evaluating the link implementation. Ensure that the <LANG>_STANDARD determined while evaluating COMPILE_FEATURES in the link implementation is not lower than that provided by the INTERFACE of the link implementation. This is similar to handling of transitive properties such as POSITION_INDEPENDENT_CODE.
2014-05-15 13:32:30 +04:00
#error "Expect override control feature"
Features: Test an expectation of whether OVERRIDE_CONTROL is expected The tests below test the presence of both cxx_final and cxx_override, only one of which is supported by MSVC. The test is in part intended to verify that the COMPILE_FEATURES genex supports multiple arguments and allows users to define names for groups of features (Clang already calls cxx_final and cxx_override 'override control' as a group). Keep the test, and allow the expectation to be set as appropriate.
2015-01-03 16:57:31 +03:00
#endif
Features: Add COMPILE_FEATURES generator expression. Allow setting build properties based on the features available for a target. The availability of features is determined at generate-time by evaluating the link implementation. Ensure that the <LANG>_STANDARD determined while evaluating COMPILE_FEATURES in the link implementation is not lower than that provided by the INTERFACE of the link implementation. This is similar to handling of transitive properties such as POSITION_INDEPENDENT_CODE.
2014-05-15 13:32:30 +04:00
#else
struct A
{
virtual int getA() { return 7; }
};
Features: Enable writing of MSVC compiler feature header. Notes: VS2015 and above are the only MSVC versions to support cxx_final, so remove usages from the tests, and instead only test for cxx_override. VS2012 and above to conform to cxx_decltype_incomplete_return_types proposal, but without support for auto return types the dcl.type.simple example in the proposal doesn't compile. VS2013 and above to conform to the updated cxx_contextual_conversions proposal, but VS2010 and above pass the test. Compilers such as MSVC have no explicit flags to enable C++11 mode, it just is always on. So only run the link tests with compilers that require a flag to specify the language version.
2015-01-06 21:19:44 +03:00
struct B : A
Features: Add COMPILE_FEATURES generator expression. Allow setting build properties based on the features available for a target. The availability of features is determined at generate-time by evaluating the link implementation. Ensure that the <LANG>_STANDARD determined while evaluating COMPILE_FEATURES in the link implementation is not lower than that provided by the INTERFACE of the link implementation. This is similar to handling of transitive properties such as POSITION_INDEPENDENT_CODE.
2014-05-15 13:32:30 +04:00
{
int getA() override { return 42; }
};
#endif
Features: Test nullptr as a side-effect activation of static_assert. Because not all compilers under test support the existing 'activation features', add another test to ensure that compilers which support both static_assert and nullptr behave as expected in this test.
2015-01-03 17:09:53 +03:00
#if !HAVE_NULLPTR
#error "Expect nullptr feature"
#else
const char* getString()
{
return nullptr;
}
#endif
Features: Add COMPILE_FEATURES generator expression. Allow setting build properties based on the features available for a target. The availability of features is determined at generate-time by evaluating the link implementation. Ensure that the <LANG>_STANDARD determined while evaluating COMPILE_FEATURES in the link implementation is not lower than that provided by the INTERFACE of the link implementation. This is similar to handling of transitive properties such as POSITION_INDEPENDENT_CODE.
2014-05-15 13:32:30 +04:00
int main()
{
}