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* [PATCH] libstdc++: Reduce header dependencies from PSTL headers [PR92546]
@ 2022-03-17 19:01 Jonathan Wakely
  2022-03-17 20:43 ` Thomas Rodgers
  0 siblings, 1 reply; 4+ messages in thread
From: Jonathan Wakely @ 2022-03-17 19:01 UTC (permalink / raw)
  To: libstdc++, gcc-patches; +Cc: trodgers

Tested x86_64-linux. Tom, any objection?

-- >8 --

This avoids including the whole of <functional> in <algorithm>, as the
<pstl/glue_algorithm_defs.h> header only actually needs std::pair.

This also avoids including <iterator> in <pstl/utils.h>, which only
needs <type_traits>, std::bad_alloc, and std::terminate (which can be
repalced with std::__terminate). This matters less, because
<pstl/utils.h> is only included by the <pstl/*_impl.h> headers and they
all use <iterator> anyway, and are only included by <execution>.

libstdc++-v3/ChangeLog:

	PR libstdc++/92546
	* include/pstl/glue_algorithm_defs.h: Replace <functional> with
	<bits/stl_pair.h>.
	* include/pstl/utils.h: Replace <iterator> with <type_traits>.
	(__pstl::__internal::__except_handler): Use std::__terminate
	instead of std::terminate.
	* src/c++17/fs_path.cc: Include <array>.
	* testsuite/25_algorithms/adjacent_find/constexpr.cc: Include
	<functional>.
	* testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
	* testsuite/25_algorithms/clamp/constrained.cc: Likewise.
	* testsuite/25_algorithms/equal/constrained.cc: Likewise.
	* testsuite/25_algorithms/for_each/constrained.cc: Likewise.
	* testsuite/25_algorithms/includes/constrained.cc: Likewise.
	* testsuite/25_algorithms/is_heap/constexpr.cc: Likewise.
	* testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise.
	* testsuite/25_algorithms/is_permutation/constrained.cc: Include
	<iterator>.
	* testsuite/25_algorithms/is_sorted/constexpr.cc: Include
	<functional>.
	* testsuite/25_algorithms/is_sorted_until/constexpr.cc:
	Likewise.
	* testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
	Likewise.
	* testsuite/25_algorithms/lexicographical_compare/constrained.cc:
	Likewise.
	* testsuite/25_algorithms/lexicographical_compare_three_way/1.cc:
	Include <array>.
	* testsuite/25_algorithms/lower_bound/constexpr.cc: Include
	<functional>.
	* testsuite/25_algorithms/max/constrained.cc: Likewise.
	* testsuite/25_algorithms/max_element/constrained.cc: Likewise.
	* testsuite/25_algorithms/min/constrained.cc: Likewise.
	* testsuite/25_algorithms/min_element/constrained.cc: Likewise.
	* testsuite/25_algorithms/minmax_element/constrained.cc:
	Likewise.
	* testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
	* testsuite/25_algorithms/move/93872.cc: Likewise.
	* testsuite/25_algorithms/move_backward/93872.cc: Include
	<iterator>.
	* testsuite/25_algorithms/nth_element/constexpr.cc: Include
	<functional>.
	* testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise.
	* testsuite/25_algorithms/partial_sort_copy/constexpr.cc:
	Likewise.
	* testsuite/25_algorithms/search/constexpr.cc: Likewise.
	* testsuite/25_algorithms/search_n/constrained.cc: Likewise.
	* testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
	* testsuite/25_algorithms/set_difference/constrained.cc:
	Likewise.
	* testsuite/25_algorithms/set_intersection/constexpr.cc:
	Likewise.
	* testsuite/25_algorithms/set_intersection/constrained.cc:
	Likewise.
	* testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
	Likewise.
	* testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
	* testsuite/25_algorithms/set_union/constrained.cc: Likewise.
	* testsuite/25_algorithms/sort/constexpr.cc: Likewise.
	* testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise.
	* testsuite/25_algorithms/transform/constrained.cc: Likewise.
	* testsuite/25_algorithms/unique/constexpr.cc: Likewise.
	* testsuite/25_algorithms/unique/constrained.cc: Likewise.
	* testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
	* testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
	* testsuite/std/ranges/adaptors/elements.cc: Include <vector>.
	* testsuite/std/ranges/adaptors/lazy_split.cc: Likewise.
	* testsuite/std/ranges/adaptors/split.cc: Likewise.
---
 libstdc++-v3/include/pstl/glue_algorithm_defs.h               | 2 +-
 libstdc++-v3/include/pstl/utils.h                             | 4 ++--
 libstdc++-v3/src/c++17/fs_path.cc                             | 1 +
 .../testsuite/25_algorithms/adjacent_find/constexpr.cc        | 1 +
 .../testsuite/25_algorithms/binary_search/constexpr.cc        | 1 +
 libstdc++-v3/testsuite/25_algorithms/clamp/constrained.cc     | 1 +
 libstdc++-v3/testsuite/25_algorithms/equal/constrained.cc     | 1 +
 libstdc++-v3/testsuite/25_algorithms/for_each/constrained.cc  | 1 +
 libstdc++-v3/testsuite/25_algorithms/includes/constrained.cc  | 1 +
 libstdc++-v3/testsuite/25_algorithms/is_heap/constexpr.cc     | 1 +
 .../testsuite/25_algorithms/is_heap_until/constexpr.cc        | 1 +
 .../testsuite/25_algorithms/is_permutation/constrained.cc     | 1 +
 libstdc++-v3/testsuite/25_algorithms/is_sorted/constexpr.cc   | 1 +
 .../testsuite/25_algorithms/is_sorted_until/constexpr.cc      | 1 +
 .../25_algorithms/lexicographical_compare/constexpr.cc        | 1 +
 .../25_algorithms/lexicographical_compare/constrained.cc      | 1 +
 .../25_algorithms/lexicographical_compare_three_way/1.cc      | 1 +
 libstdc++-v3/testsuite/25_algorithms/lower_bound/constexpr.cc | 1 +
 libstdc++-v3/testsuite/25_algorithms/max/constrained.cc       | 1 +
 .../testsuite/25_algorithms/max_element/constrained.cc        | 1 +
 libstdc++-v3/testsuite/25_algorithms/min/constrained.cc       | 1 +
 .../testsuite/25_algorithms/min_element/constrained.cc        | 1 +
 .../testsuite/25_algorithms/minmax_element/constrained.cc     | 1 +
 libstdc++-v3/testsuite/25_algorithms/mismatch/constexpr.cc    | 1 +
 libstdc++-v3/testsuite/25_algorithms/move/93872.cc            | 1 +
 libstdc++-v3/testsuite/25_algorithms/move_backward/93872.cc   | 1 +
 libstdc++-v3/testsuite/25_algorithms/nth_element/constexpr.cc | 1 +
 .../testsuite/25_algorithms/partial_sort/constexpr.cc         | 1 +
 .../testsuite/25_algorithms/partial_sort_copy/constexpr.cc    | 1 +
 libstdc++-v3/testsuite/25_algorithms/search/constexpr.cc      | 1 +
 libstdc++-v3/testsuite/25_algorithms/search_n/constrained.cc  | 1 +
 .../testsuite/25_algorithms/set_difference/constexpr.cc       | 1 +
 .../testsuite/25_algorithms/set_difference/constrained.cc     | 1 +
 .../testsuite/25_algorithms/set_intersection/constexpr.cc     | 1 +
 .../testsuite/25_algorithms/set_intersection/constrained.cc   | 1 +
 .../25_algorithms/set_symmetric_difference/constexpr.cc       | 1 +
 libstdc++-v3/testsuite/25_algorithms/set_union/constexpr.cc   | 1 +
 libstdc++-v3/testsuite/25_algorithms/set_union/constrained.cc | 1 +
 libstdc++-v3/testsuite/25_algorithms/sort/constexpr.cc        | 1 +
 libstdc++-v3/testsuite/25_algorithms/sort_heap/constexpr.cc   | 1 +
 libstdc++-v3/testsuite/25_algorithms/transform/constrained.cc | 1 +
 libstdc++-v3/testsuite/25_algorithms/unique/constexpr.cc      | 1 +
 libstdc++-v3/testsuite/25_algorithms/unique/constrained.cc    | 1 +
 libstdc++-v3/testsuite/25_algorithms/unique_copy/constexpr.cc | 1 +
 libstdc++-v3/testsuite/25_algorithms/upper_bound/constexpr.cc | 1 +
 libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc        | 3 ++-
 libstdc++-v3/testsuite/std/ranges/adaptors/lazy_split.cc      | 1 +
 libstdc++-v3/testsuite/std/ranges/adaptors/split.cc           | 1 +
 48 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/libstdc++-v3/include/pstl/glue_algorithm_defs.h b/libstdc++-v3/include/pstl/glue_algorithm_defs.h
index 48bc56ae401..cef78e22e31 100644
--- a/libstdc++-v3/include/pstl/glue_algorithm_defs.h
+++ b/libstdc++-v3/include/pstl/glue_algorithm_defs.h
@@ -10,7 +10,7 @@
 #ifndef _PSTL_GLUE_ALGORITHM_DEFS_H
 #define _PSTL_GLUE_ALGORITHM_DEFS_H
 
-#include <functional>
+#include <bits/stl_pair.h>
 
 #include "execution_defs.h"
 
diff --git a/libstdc++-v3/include/pstl/utils.h b/libstdc++-v3/include/pstl/utils.h
index 1711f292678..0e908f1c539 100644
--- a/libstdc++-v3/include/pstl/utils.h
+++ b/libstdc++-v3/include/pstl/utils.h
@@ -11,7 +11,7 @@
 #define _PSTL_UTILS_H
 
 #include <new>
-#include <iterator>
+#include <type_traits>
 
 namespace __pstl
 {
@@ -32,7 +32,7 @@ __except_handler(_Fp __f)
     }
     catch (...)
     {
-        std::terminate(); // Good bye according to the standard [algorithms.parallel.exceptions]
+        std::__terminate(); // Good bye according to the standard [algorithms.parallel.exceptions]
     }
 }
 
diff --git a/libstdc++-v3/src/c++17/fs_path.cc b/libstdc++-v3/src/c++17/fs_path.cc
index a44fa284879..047082350ec 100644
--- a/libstdc++-v3/src/c++17/fs_path.cc
+++ b/libstdc++-v3/src/c++17/fs_path.cc
@@ -33,6 +33,7 @@
 
 #include <filesystem>
 #include <algorithm>
+#include <array>
 #include <bits/stl_uninitialized.h>
 
 namespace fs = std::filesystem;
diff --git a/libstdc++-v3/testsuite/25_algorithms/adjacent_find/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/adjacent_find/constexpr.cc
index d2a741e8c91..772db230041 100644
--- a/libstdc++-v3/testsuite/25_algorithms/adjacent_find/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/adjacent_find/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr std::array<int, 12> car{{0, 1, 2, 3, 4, 5, 6, 6, 8, 9, 9, 11}};
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/binary_search/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/binary_search/constexpr.cc
index 733a18c31ad..f7a5fa12d3b 100644
--- a/libstdc++-v3/testsuite/25_algorithms/binary_search/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/binary_search/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/clamp/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/clamp/constrained.cc
index 41b1f679234..5464dcf9a83 100644
--- a/libstdc++-v3/testsuite/25_algorithms/clamp/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/clamp/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/equal/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/equal/constrained.cc
index ac034813255..cab35525c2d 100644
--- a/libstdc++-v3/testsuite/25_algorithms/equal/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/equal/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/for_each/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/for_each/constrained.cc
index 85044a15092..9ffc33f88d5 100644
--- a/libstdc++-v3/testsuite/25_algorithms/for_each/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/for_each/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/includes/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/includes/constrained.cc
index 1dd4312b4c8..a0ace5d82c2 100644
--- a/libstdc++-v3/testsuite/25_algorithms/includes/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/includes/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/is_heap/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/is_heap/constexpr.cc
index 420ff94cfdc..a2e8e3981a1 100644
--- a/libstdc++-v3/testsuite/25_algorithms/is_heap/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/is_heap/constexpr.cc
@@ -19,6 +19,7 @@
 // { dg-do compile { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <array>
 
 // heap
diff --git a/libstdc++-v3/testsuite/25_algorithms/is_heap_until/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/is_heap_until/constexpr.cc
index 53e991fa4b9..be316eb8e95 100644
--- a/libstdc++-v3/testsuite/25_algorithms/is_heap_until/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/is_heap_until/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 // heap
 constexpr std::array<int, 23>
diff --git a/libstdc++-v3/testsuite/25_algorithms/is_permutation/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/is_permutation/constrained.cc
index b5814a05add..8d2013620b5 100644
--- a/libstdc++-v3/testsuite/25_algorithms/is_permutation/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/is_permutation/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <iterator>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/is_sorted/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/is_sorted/constexpr.cc
index e020d2ee17e..422c1ceaf65 100644
--- a/libstdc++-v3/testsuite/25_algorithms/is_sorted/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/is_sorted/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr std::array<int, 12> ca0{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}};
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/is_sorted_until/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/is_sorted_until/constexpr.cc
index 161437ed2a1..b3906330d69 100644
--- a/libstdc++-v3/testsuite/25_algorithms/is_sorted_until/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/is_sorted_until/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constexpr.cc
index 855da0c766b..d69527113d5 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc
index 708f3dd8aba..ef904e65d68 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare_three_way/1.cc b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare_three_way/1.cc
index 48be0f6412b..16b77033713 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare_three_way/1.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare_three_way/1.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <array>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/lower_bound/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/lower_bound/constexpr.cc
index 6041ffcb0c7..8cd8fb98921 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lower_bound/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lower_bound/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/max/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/max/constrained.cc
index bba8e807ed6..10af2b172f8 100644
--- a/libstdc++-v3/testsuite/25_algorithms/max/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/max/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/max_element/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/max_element/constrained.cc
index 7139e37fcc9..a4291b29381 100644
--- a/libstdc++-v3/testsuite/25_algorithms/max_element/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/max_element/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/min/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/min/constrained.cc
index 8bec9f9debc..405bf968335 100644
--- a/libstdc++-v3/testsuite/25_algorithms/min/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/min/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/min_element/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/min_element/constrained.cc
index bc07e3fe5e4..94ec58708f7 100644
--- a/libstdc++-v3/testsuite/25_algorithms/min_element/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/min_element/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax_element/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/minmax_element/constrained.cc
index f8785c4c45c..df199230a78 100644
--- a/libstdc++-v3/testsuite/25_algorithms/minmax_element/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax_element/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/mismatch/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/mismatch/constexpr.cc
index 3b4433c05f4..f32c1a6224d 100644
--- a/libstdc++-v3/testsuite/25_algorithms/mismatch/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/mismatch/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/move/93872.cc b/libstdc++-v3/testsuite/25_algorithms/move/93872.cc
index b7801269545..4b0c8105171 100644
--- a/libstdc++-v3/testsuite/25_algorithms/move/93872.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/move/93872.cc
@@ -19,6 +19,7 @@
 // { dg-do compile { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 
 struct X
 {
diff --git a/libstdc++-v3/testsuite/25_algorithms/move_backward/93872.cc b/libstdc++-v3/testsuite/25_algorithms/move_backward/93872.cc
index af1fd106334..4dc51a178fa 100644
--- a/libstdc++-v3/testsuite/25_algorithms/move_backward/93872.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/move_backward/93872.cc
@@ -19,6 +19,7 @@
 // { dg-do compile { target c++2a } }
 
 #include <algorithm>
+#include <iterator>
 
 struct X
 {
diff --git a/libstdc++-v3/testsuite/25_algorithms/nth_element/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/nth_element/constexpr.cc
index 36b71e44b78..5bd424a9cea 100644
--- a/libstdc++-v3/testsuite/25_algorithms/nth_element/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/nth_element/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/partial_sort/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/partial_sort/constexpr.cc
index 63ff97eb3a1..f24db97b51c 100644
--- a/libstdc++-v3/testsuite/25_algorithms/partial_sort/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/partial_sort/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/constexpr.cc
index eca915fd57a..c87b9785790 100644
--- a/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/partial_sort_copy/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/search/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/search/constexpr.cc
index de0ff5d2193..a796a081c85 100644
--- a/libstdc++-v3/testsuite/25_algorithms/search/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/search/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/search_n/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/search_n/constrained.cc
index d91daf74f1f..0ba12fe7afa 100644
--- a/libstdc++-v3/testsuite/25_algorithms/search_n/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/search_n/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_difference/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/set_difference/constexpr.cc
index 5c520ecaa4e..0eb0f6a0156 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_difference/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_difference/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_difference/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/set_difference/constrained.cc
index b27d1c73c5b..bee831fd0bf 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_difference/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_difference/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_intersection/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/set_intersection/constexpr.cc
index b561f18302e..15ee0169950 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_intersection/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_intersection/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_intersection/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/set_intersection/constrained.cc
index 39311f26f5c..c80d0408aae 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_intersection/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_intersection/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc
index fc578cc7e79..ee9934408ca 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_union/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/set_union/constexpr.cc
index 87821137382..e9a1cbfd658 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_union/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_union/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/set_union/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/set_union/constrained.cc
index f53827fd209..2e8a603c4d7 100644
--- a/libstdc++-v3/testsuite/25_algorithms/set_union/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_union/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/sort/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/sort/constexpr.cc
index b6a71294782..2a55f3ec702 100644
--- a/libstdc++-v3/testsuite/25_algorithms/sort/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/sort/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/sort_heap/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/sort_heap/constexpr.cc
index b799f566da5..98c5f01b6ad 100644
--- a/libstdc++-v3/testsuite/25_algorithms/sort_heap/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/sort_heap/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/transform/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/transform/constrained.cc
index 1db415697e4..b3005d96147 100644
--- a/libstdc++-v3/testsuite/25_algorithms/transform/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/transform/constrained.cc
@@ -19,6 +19,7 @@
 // { dg-do run { target c++2a } }
 
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/unique/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/unique/constexpr.cc
index 7475ec721e5..384cec27d56 100644
--- a/libstdc++-v3/testsuite/25_algorithms/unique/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/unique/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/unique/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/unique/constrained.cc
index f0fc3c3b6b5..2f0f6872440 100644
--- a/libstdc++-v3/testsuite/25_algorithms/unique/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/unique/constrained.cc
@@ -20,6 +20,7 @@
 
 #include <list>
 #include <algorithm>
+#include <functional>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/25_algorithms/unique_copy/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/unique_copy/constexpr.cc
index 200a5ce470f..bfa375c023f 100644
--- a/libstdc++-v3/testsuite/25_algorithms/unique_copy/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/unique_copy/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/25_algorithms/upper_bound/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/upper_bound/constexpr.cc
index 2e87bab0170..0735c608a84 100644
--- a/libstdc++-v3/testsuite/25_algorithms/upper_bound/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/upper_bound/constexpr.cc
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()
diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc
index 93a1c6d3053..30e4e419a34 100644
--- a/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc
+++ b/libstdc++-v3/testsuite/std/ranges/adaptors/elements.cc
@@ -20,9 +20,10 @@
 
 #include <algorithm>
 #include <ranges>
+#include <tuple>
+#include <vector>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
-#include <tuple>
 
 namespace ranges = std::ranges;
 namespace views = ranges::views;
diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/lazy_split.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/lazy_split.cc
index e46f76d7632..21c0837cdd3 100644
--- a/libstdc++-v3/testsuite/std/ranges/adaptors/lazy_split.cc
+++ b/libstdc++-v3/testsuite/std/ranges/adaptors/lazy_split.cc
@@ -22,6 +22,7 @@
 #include <ranges>
 #include <string>
 #include <string_view>
+#include <vector>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/split.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/split.cc
index ca10608efb5..a46f898a663 100644
--- a/libstdc++-v3/testsuite/std/ranges/adaptors/split.cc
+++ b/libstdc++-v3/testsuite/std/ranges/adaptors/split.cc
@@ -22,6 +22,7 @@
 #include <ranges>
 #include <string>
 #include <string_view>
+#include <vector>
 #include <testsuite_hooks.h>
 #include <testsuite_iterators.h>
 
-- 
2.34.1


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2022-03-17 19:01 [PATCH] libstdc++: Reduce header dependencies from PSTL headers [PR92546] Jonathan Wakely
2022-03-17 20:43 ` Thomas Rodgers
2022-03-18 10:16   ` Jonathan Wakely
2022-03-18 10:46     ` Jonathan Wakely

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