[libcxx-commits] [PATCH] D103272: [libc++] Refactor the ranges::prev and ranges::next tests

[Arthur O'Dwyer via Phabricator via libcxx-commits]

Quuxplusone added a comment.

Partly reviewed, but had to step away in the middle.



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Comment at: libcxx/test/std/iterators/iterator.primitives/range.iter.ops/range.iter.ops.next/constraints.verify.cpp:19-25
 void proper_constraints() {
   auto p = std::unique_ptr<int>();
   std::ranges::next(p);    // expected-error {{no matching function for call}}
   std::ranges::next(p, p); // expected-error {{no matching function for call}}
   std::ranges::next(p, 5); // expected-error {{no matching function for call}}
   std::ranges::next(p, 7); // expected-error {{no matching function for call}}
 }
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It would be even nicer to make this a real SFINAE test and enable it for gcc-10/gcc-11.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D103272/new/

https://reviews.llvm.org/D103272