a554497024
Update copyright years.
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From-SVN: r267494
2019-01-01 13:31:55 +01:00
88b1e41c2d
Make std::function tolerate semantically non-CopyConstructible objects
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To satisfy the CopyConstructible requirement a callable object stored in
a std::function must behave the same when copied from a const or
non-const source. If copying a non-const object doesn't produce an
equivalent copy then the behaviour is undefined. But we can make our
std::function more tolerant of such objects by ensuring we always copy
from a const lvalue.
Additionally use an if constexpr statement in the _M_get_pointer
function to avoid unnecessary instantiations in the discarded branch.
* include/bits/std_function.h (_Base_manager::_M_get_pointer):
Use constexpr if in C++17 mode.
(_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
Copy from const object.
* testsuite/20_util/function/cons/non_copyconstructible.cc: New.
From-SVN: r260080
2018-05-09 14:28:11 +01:00
85ec4feb11
Update copyright years.
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From-SVN: r256169
2018-01-03 11:03:58 +01:00
00677c4877
PR libstdc++/83427 detect weak result type from noexcept functions
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PR libstdc++/83427
* include/bits/refwrap.h (_Maybe_unary_or_binary_function): Move here
from <bits/std_function.h>.
(_Mem_fn_traits_base, _Mem_fn_traits): Move here, from <functional>.
(_Weak_result_type_impl, _Reference_wrapper_base): Deduce noexcept
for function types. Remove partial specializations for member
functions.
(_Weak_result_type_impl): Remove unused partial specializations for
non-referenceable function types and for references to functions.
(_Weak_result_type_memfun, _Reference_wrapper_base_memfun): New
helpers to handle member functions via _Mem_fn_traits.
(_Weak_result_type, reference_wrapper): Derive from new helpers.
* include/bits/std_function.h (_Maybe_unary_or_binary_function): Move
to <bits/refwrap.h>.
* include/std/functional (_Pack, _AllConvertible, _NotSame): Remove.
(_Mem_fn_traits_base, _Mem_fn_traits): Move to <bits/refwrap.h>.
* testsuite/20_util/bind/83427.cc: New test.
* testsuite/20_util/bind/refqual.cc: Add noexcept to functions and
check for weak result types.
* testsuite/20_util/reference_wrapper/83427.cc: New test.
From-SVN: r255651
2017-12-14 17:18:22 +00:00
853ed6bc10
PR libstdc++/81017 add noexcept to std::function move operations
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PR libstdc++/81017
* include/bits/std_function.h (function::function(function&&))
(function::operator=(funtion&&)): Add noexcept.
* testsuite/20_util/function/assign/move.cc: Check for noexcept.
* testsuite/20_util/function/cons/move.cc: Likewise.
From-SVN: r249018
2017-06-08 15:27:45 +01:00
26bddba34a
Fixes to Doxygen comments in libstdc++ headers
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* include/bits/refwrap.h: Fix Doxygen warning.
* include/bits/specfun.h: Likewise.
* include/bits/std_function.h: Likewise.
* include/bits/stl_algo.h (set_union, set_intersection)
(set_difference, set_symmetric_difference): Add Doxygen @param tags
for output iterator parameters.
* include/bits/stl_iterator.h (inserter): Add Doxygen @param tag for
iterator parameter.
* include/std/mutex (try_lock, lock): Change Mutex to Lockable in
Doxygen comments.
From-SVN: r248160
2017-05-17 17:02:33 +01:00
af181c91a9
Add deduction guides for C++17 (P0433R2, partial)
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* include/bits/shared_ptr.h (shared_ptr, weak_ptr): Add deduction
guides for C++17.
* include/bits/std_function.h (function): Likewise.
* include/bits/stl_pair.h (pair): Likewise.
* include/debug/array (__gnu_debug::array): Likewise.
* include/std/array (array): Likewise.
* include/std/functional (make_default_searcher)
(make_boyer_moore_searcher, make_boyer_moore_horspool_searcher):
Remove generator functions.
* include/std/tuple (tuple): Add deduction guides.
* include/std/valarray (valarray): Likewise.
* testsuite/20_util/function_objects/searchers.cc: Adjust to use
class template argument deduction instead of generator functions.
* testsuite/20_util/function/cons/deduction.cc: New test.
* testsuite/20_util/optional/cons/deduction_guide.cc: Rename to ...
* testsuite/20_util/optional/cons/deduction.cc: ... here.
* testsuite/20_util/pair/cons/deduction.cc: New test.
* testsuite/20_util/shared_ptr/cons/deduction.cc: New test.
* testsuite/20_util/tuple/cons/deduction.cc: New test.
* testsuite/20_util/tuple/element_access/get_neg.cc: Adjust dg-error.
* testsuite/20_util/unique_ptr/cons/deduction_neg.cc: New test.
* testsuite/20_util/weak_ptr/cons/deduction.cc: New test.
* testsuite/23_containers/array/cons/deduction.cc: New test.
* testsuite/23_containers/array/cons/deduction_neg.cc: New test.
* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
Adjust dg-error.
* testsuite/23_containers/array/tuple_interface/get_neg.cc: Likewise.
* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
Likewise.
* testsuite/26_numerics/valarray/deduction.cc: New test.
* testsuite/30_threads/lock_guard/cons/deduction.cc: New test.
* testsuite/30_threads/scoped_lock/cons/deduction.cc: New test.
* testsuite/30_threads/unique_lock/cons/deduction.cc: New test.
From-SVN: r246389
2017-03-22 15:58:35 +00:00
4704f28e7a
PR66284 remove std::function special case for reference_wrapper
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PR libstdc++/66284
* doc/xml/manual/intro.xml: Document LWG 2781 change.
* doc/html/*: Regenerate.
* include/std/functional (_Function_base::_Ref_manager): Remove.
(_Function_handler): Remove partial specializations for
reference_wrapper.
(function::target): Remove special case for const qualification.
* testsuite/20_util/function/6.cc: Adjust tests for target type.
* testsuite/20_util/function/7.cc: Likewise.
* testsuite/20_util/function/8.cc: Likewise.
From-SVN: r244364
2017-01-12 14:28:38 +00:00
295ce2e534
Remove unnecessary typedef from std::function
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* include/bits/std_function.h (function::_Signature_type): Remove.
(function::function(_Functor)): Adjust.
From-SVN: r244107
2017-01-05 17:35:49 +00:00
cbe34bb5ed
Update copyright years.
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From-SVN: r243994
2017-01-01 13:07:43 +01:00
c05986b936
Split <functional> into smaller pieces
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* include/Makefile.am: Add <bits/refwrap.h> and <bits/std_function.h>.
Order alphabetically.
* include/Makefile.in: Regenerate.
* include/bits/refwrap.h: New header.
(_Maybe_get_result_type,_Weak_result_type_impl, _Weak_result_type)
(_Reference_wrapper_base_impl, _Reference_wrapper_base)
(reference_wrapper, ref, cref): Move here from <functional>.
* include/bits/shared_ptr_base.h: Include <bits/refwrap.h> and
<bits/stl_function.h> instead of <functional>.
* include/bits/std_function.h: New header.
(_Maybe_unary_or_binary_function, bad_function_call)
(__is_location_invariant, _Nocopy_types, _Any_data)
(_Simple_type_wrapper, _Function_base, _Function_handler, function):
Move here from <functional>.
* include/bits/unique_ptr.h: Include <bits/stl_function.h>.
* include/std/functional: Include new headers and move components to
them.
* include/std/future: Include <bits/std_function.h> instead of
<functional>.
* include/std/mutex: Likewise.
* include/std/regex: Likewise.
* src/c++11/compatibility-thread-c++0x.cc: Include <functional>.
* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
* testsuite/20_util/default_delete/void_neg.cc: Likewise.
* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Adjust dg-error
lines.
* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
* testsuite/30_threads/packaged_task/49668.cc: Include <functional>.
From-SVN: r241410
2016-10-21 16:32:25 +01:00
Jakub Jelinek