[PATCH] D54643: [libcxx] [test] Portability fix: add missing headers to unordered containers tests.

[Andrey Maksimov via Phabricator]

amakc11 created this revision.
amakc11 added a reviewer: EricWF.
Herald added subscribers: libcxx-commits, ldionne.

A bunch of unordered containers tests call library functions, but don't directly include the corresponding header files:

1. fabs() (defined in <cmath> which is not included);
2. is_permutation() (defined in <algorithm> which is not included);
3. next() (defined in <iterator> which is not included).

As a result, these tests won't compile against some conformant libraries.
Please note, that the list of the updated files might be incomplete, since I don't run "post C++11" tests.


Repository:
  rCXX libc++

https://reviews.llvm.org/D54643

Files:
  test/std/containers/unord/unord.map/unord.map.cnstr/assign_init.pass.cpp
  test/std/containers/unord/unord.map/unord.map.cnstr/assign_move.pass.cpp
  test/std/containers/unord/unord.map/unord.map.cnstr/init.pass.cpp
  test/std/containers/unord/unord.map/unord.map.cnstr/range.pass.cpp
  test/std/containers/unord/unord.multimap/unord.multimap.cnstr/assign_copy.pass.cpp
  test/std/containers/unord/unord.multimap/unord.multimap.cnstr/assign_init.pass.cpp
  test/std/containers/unord/unord.multimap/unord.multimap.cnstr/assign_move.pass.cpp
  test/std/containers/unord/unord.multimap/unord.multimap.cnstr/init.pass.cpp
  test/std/containers/unord/unord.multimap/unord.multimap.cnstr/range.pass.cpp
  test/std/containers/unord/unord.multiset/erase_range.pass.cpp
  test/std/containers/unord/unord.multiset/unord.multiset.cnstr/assign_copy.pass.cpp
  test/std/containers/unord/unord.multiset/unord.multiset.cnstr/assign_init.pass.cpp
  test/std/containers/unord/unord.multiset/unord.multiset.cnstr/assign_move.pass.cpp
  test/std/containers/unord/unord.multiset/unord.multiset.cnstr/init.pass.cpp
  test/std/containers/unord/unord.multiset/unord.multiset.cnstr/range.pass.cpp
  test/std/containers/unord/unord.set/erase_range.pass.cpp
  test/std/containers/unord/unord.set/unord.set.cnstr/assign_copy.pass.cpp
  test/std/containers/unord/unord.set/unord.set.cnstr/assign_init.pass.cpp
  test/std/containers/unord/unord.set/unord.set.cnstr/assign_move.pass.cpp
  test/std/containers/unord/unord.set/unord.set.cnstr/init.pass.cpp
  test/std/containers/unord/unord.set/unord.set.cnstr/range.pass.cpp

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