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Upgrade to C++17

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Chris Thrasher
2025-09-21 13:23:25 -06:00
parent c6cefc6596
commit db46dc4cb2
93 changed files with 431 additions and 917 deletions
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docs/contributing.md
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@@ -211,16 +211,10 @@ and so on.
### C++ standard version
Catch2 currently targets C++14 as the minimum supported C++ version.
Catch2 currently targets C++17 as the minimum supported C++ version.
Features from higher language versions should be used only sparingly,
when the benefits from using them outweigh the maintenance overhead.
Example of good use of polyfilling features is our use of `conjunction`,
where if available we use `std::conjunction` and otherwise provide our
own implementation. The reason it is good is that the surface area for
maintenance is quite small, and `std::conjunction` can directly use
compiler built-ins, thus providing significant compilation benefits.
Example of bad use of polyfilling features would be to keep around two
sets of metaprogramming in the stringification implementation, once
using C++14 compliant TMP and once using C++17's `if constexpr`. While