On Wed, Nov 18, 2015 at 1:06 PM, Brad King <brad.k...@kitware.com> wrote:
> On 11/18/2015 02:32 PM, Levi Morrison wrote: > > After some other tweaks I am able to get Intel C++ compiler versions > > 12.1.4 13.0.1, 14.0.0, 14.0.2, 15.0.0, 15.0.2, 15.0.3 to work! > > Both tests found by `ctest -R CompileFeatures -VV` pass. > > Great. However, the concern I raised earlier about detecting > C++11 features in C++14 mode has not been addressed. For example: > > set(Intel14_CXX11 "__ICC >= 1400 && __INTEL_CXX11_MODE__") > > In C++14 mode this check fails so all the conditional features are > detected to not exist. Tests/CompileFeatures/CMakeFiles/CMakeOutput.log > shows: > > Detecting CXX [-std=c++1y] compiler features compiled with the following > output: > ... > Feature record: CXX_FEATURE:0cxx_defaulted_move_initializers > ... > Detecting CXX [-std=c++11] compiler features compiled with the following > output: > ... > Feature record: CXX_FEATURE:1cxx_defaulted_move_initializers > > The "0" and "1" are an internal detection code encoding for whether > the feature exists according to the feature test specified. We see > that the C++14 mode does not think the feature exists. This is not > the case for GNU or other compilers. > > I'm not sure why this doesn't cause problems in the test, but the > conditions need to be fixed to avoid this problem. __INTEL_CXX11_MODE__ > only tells us that we are in *exactly* C++11 mode and so is not > reliable for detecting C++11 features in C++14 mode. > > -Brad > > My builds don't seem to be attempting this: Detecting CXX [-std=c++1y] compiler features compiled with the following > output You are getting this out of the CMakeFiles/CMakeOutput.log, correct?
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