| Re: [eigen] Taking advantage of C++11 features in Eigen |
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On 12.02.2014 13:18, Helmut Jarausch wrote:
Gnu's standard library is full of code like
#if defined(__cplusplus) && __cplusplus >= 201103L
I would not consider GCCs standard library as a good example of clean
code ;) Partially, that is because they must implement C++11 library
functions but still need to be compatible with C++03 (unless they wanted
to provide separate headers for that).
and AFAIR the preprocessor symbol cplusplus is standardized.
Yes it is, but I still think we should abstract from that. Some
compilers with experimental C++11 support do not already define
__cplusplus to be 201103L, but we might still want to allow certain
features (e.g. we allow move semantics if __GXX_EXPERIMENTAL_CXX0X__ is
defined).
This also allows people experimenting with Eigen more easily to enable
or disable certain features.
Christoph
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Dipl.-Inf., Dipl.-Math. Christoph Hertzberg
Cartesium 0.049
Universität Bremen
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