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C++ style guide: Difference between revisions
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→Other C++ features: C++11 is now allowed and C++14 is the new not allowed
(fix link to m-file style guide) |
Carandraug (talk | contribs) (→Other C++ features: C++11 is now allowed and C++14 is the new not allowed) |
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=== C++11 === | === C++11 === | ||
Do not use C++ | C++11 features are generally allowed. Check if the feature you want to | ||
use has been already used. If not, ask on the mailing list. | |||
=== C++14 === | |||
Do not use C++14 features. Octave is widely used in very old systems and we | |||
want them to be able to use up to date versions of Octave. Building a recent | want them to be able to use up to date versions of Octave. Building a recent | ||
compiler in such systems is not a trivial task so the limitation must happen | compiler in such systems is not a trivial task so the limitation must happen | ||
in Octave | in Octave. | ||
An exception: code that requires C++ | An exception: code that requires C++14 feature must also implement an | ||
alternative code in the absence of said feature. In such case, use a | alternative code in the absence of said feature. In such case, use a | ||
configure check. This increases maintenance a lot, must be used sparsely, | configure check. This increases maintenance a lot, must be used sparsely, | ||
and requires approval from other maintainers. | and requires approval from other maintainers. | ||
#if | #if HAVE_THIS_C14_FEATURE | ||
// code that really needs it | // code that really needs it | ||
#else | #else | ||
// alternative code in its absence | // alternative code in its absence | ||
#endif | #endif | ||