Cleanup stream read method guards #288
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Matches style used for stream write code.
Guard against the container itself being trivial to avoid ambiguous calls. This excludes `std::array`, which is served by the other method taking trivial types. A trivial container of trivial types is itself trivial. Note: Technically, this should guard for types with `.data()` and `.size()` members. Such members imply a contiguous container.
These methods are basically identical, and may be combined into a single method at some point.
It could potentially be collapsed with the method above, but needs C++17 flags set to allow that. Reference: https://en.cppreference.com/w/cpp/string/basic_string/data
This can potentially handle the size prefix part of any container read, including containers we don't yet support serialization for. Currently we simply delegate for the details of reading the actual container contents.
This is now served by the more general size prefixed container read case.
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If PR #290 is merged, this branch can use C++17 features for MSVC builds. |
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I just took another look at this. It should be fine to merge now. Once we enable C++17 on all systems we could then remove the one largely redundant method. If we want to do the method removal as part of this PR, then we should wait until the other changes are merged first. |
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Unless we plan to update to requiring C++17 now on all Linux compilers, I would prefer merging and writing up an issue for later work. Better to close this branch out instead of letting it grow stale over time. We could create a C++17 tag for issues as a reminder on which ones are waiting on C++17 as standard to complete. |
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Ok, very good suggestion. I wrote up an issue. I'll merge this now. |
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This is the read update corresponding to PR #287. Tagging Issue #278 as related. Tagging PR #281 as related for simplifying the template parameters.
There was one slight difference to the write case. I didn't collapse one of the string read methods into the generalized container form, since the
string.data()method didn't have a non-const overload until C++17. Reference:https://en.cppreference.com/w/cpp/string/basic_string/data
The current Linux flags are set for C++14. I'm uncertain if there are blocking issues with the Windows project, particularly regarding the Google Test unit test project. If it's fine to update to C++17, then we can collapse those two methods into one.