gcc.git/libstdc++-v3/testsuite/21_strings/basic_string/modifiers, branch master

libstdc++: Expand compile-time ranges tests for vector and basic_string.

2025-07-24T13:13:46+00:00

This replaces most test_constexpr invocations with direct calls to
test_ranges(), which is also used for runtime tests.

SimpleAllocator was made constexpr to simplify this refactoring. Other
test allocators, like uneq_allocator (used in from_range constructor
tests), were not updated.

libstdc++-v3/ChangeLog:

	* testsuite/21_strings/basic_string/cons/from_range.cc: Replace
	test_constexpr with test_ranges inside static_assert.
	* testsuite/21_strings/basic_string/modifiers/append/append_range.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/assign/assign_range.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/insert/insert_range.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/replace/replace_with_range.cc:
	Likewise.
	* testsuite/23_containers/vector/bool/cons/from_range.cc: Likewise.
	* testsuite/23_containers/vector/bool/modifiers/assign/assign_range.cc:
	Likewise.
	* testsuite/23_containers/vector/bool/modifiers/insert/insert_range.cc:
	Likewise.
	* testsuite/23_containers/vector/cons/from_range.cc: Likewise.
	* testsuite/23_containers/vector/modifiers/assign/assign_range.cc:
	Likewise.
	* testsuite/23_containers/vector/modifiers/insert/insert_range.cc:
	Likewise.
	* testsuite/23_containers/vector/bool/modifiers/insert/append_range.cc:
	Run full test_ranges instead of span-only in test_constexpr.
	* testsuite/23_containers/vector/modifiers/append_range.cc:
	Replace test_constexpr with calls to test_ranges and test_overlapping.
	* testsuite/util/testsuite_allocator.h (__gnu_test::SimpleAllocator):
	Declared member functions as constexpr.

libstdc++: Add P1206R7 from_range members to std::string [PR111055]

2025-04-11T10:18:30+00:00

This is the last piece of P1206R7, adding new members to
std::basic_string.

libstdc++-v3/ChangeLog:

	PR libstdc++/111055
	* include/bits/basic_string.h (_S_copy_range): New function.
	(basic_string(from_range_t, R%%, const Alloc&)): New
	constructor.
	(append_range, assign_range, insert_range, replace_with_range):
	New functions.
	* include/bits/cow_string.h: Likewise.
	* testsuite/21_strings/basic_string/cons/from_range.cc: New
	test.
	* testsuite/21_strings/basic_string/modifiers/append/append_range.cc:
	New test.
	* testsuite/21_strings/basic_string/modifiers/assign/assign_range.cc:
	New test.
	* testsuite/21_strings/basic_string/modifiers/insert/insert_range.cc:
	New test.
	* testsuite/21_strings/basic_string/modifiers/replace/replace_with_range.cc:
	New test.

Co-authored-by: Tomasz Kamiński

Update copyright years.

2025-01-02T10:59:57+00:00

libstdc++: Fix constexpr basic_string union member [PR113294]

2024-02-12T23:18:04+00:00

A call to `basic_string::clear()` in the std::string move assignment
operator leads to a constexpr error from an access of inactive union
member `_M_local_buf` in the added test (`test_move()`). Changing
`__str._M_local_buf` to `__str._M_use_local_data()` in
`operator=(basic_string&& __str)` fixes this.

	PR libstdc++/113294

libstdc++-v3/ChangeLog:

	* include/bits/basic_string.h (basic_string::operator=): Use
	_M_use_local_data() instead of _M_local_buf on the moved-from
	string.
	* testsuite/21_strings/basic_string/modifiers/constexpr.cc
	(test_move): New test.

Signed-off-by: Paul Keir 
Reviewed-by: Patrick Palka 
Reviewed-by: Jonathan Wakely

Update copyright years.

2024-01-03T11:19:35+00:00

libstdc++: Remove dg-options "-std=gnu++20" from 21_strings tests

2023-09-15T23:10:45+00:00

The testsuite will automatically select C++20 for these tests now, and
removing the hardcoded -std option allows them to be tested for C++23
and C++26 as well.

libstdc++-v3/ChangeLog:

	* testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
	dg-options -std=gnu++20.
	* testsuite/21_strings/basic_string/cons/char/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string/erasure.cc: Likewise.
	* testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
	Likewise.
	* testsuite/21_strings/basic_string/literals/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operations/ends_with/char.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operations/starts_with/char.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
	Likewise.
	* testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/cons/char/range.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
	Likewise.
	* testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
	Likewise.
	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
	Likewise.

Update copyright years.

2023-01-16T10:52:17+00:00

libstdc++: Rename tests like .../wchar_t/1.cc to .../wchar_t.cc

2022-05-26T09:05:51+00:00

There's no need to have directories containing a single test file, we
can rename the files to the directory names and remove the directories.

The dejagnu proc that filters out wchar_t tests just checks for
"wchar_t" anywhere in the path, so will work just as well on wchar_t.cc
or constexpr-wchar_t.cc paths.

libstdc++-v3/ChangeLog:

	* testsuite/21_strings/basic_string/modifiers/pop_back/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/modifiers/pop_back/char.cc:
	...here.
	* testsuite/21_strings/basic_string/modifiers/pop_back/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/modifiers/pop_back/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/modifiers/swap/wchar_t/constexpr.cc:
	Moved to...
	* testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/modifiers/swap/char/constexpr.cc:
	Moved to...
	* testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/contains/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/contains/char.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/contains/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/contains/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/data/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/data/char.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/data/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/data/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/ends_with/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/ends_with/char.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/ends_with/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/starts_with/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/starts_with/char.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/starts_with/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/substr/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/substr/char.cc:
	...here.
	* testsuite/21_strings/basic_string/operations/substr/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/operations/substr/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/range_access/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/range_access/char.cc:
	...here.
	* testsuite/21_strings/basic_string/range_access/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/range_access/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/modifiers/swap/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/modifiers/swap/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/contains/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/contains/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/contains/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/data/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/data/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/data/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/data/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/ends_with/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/starts_with/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/substr/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/substr/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/operations/substr/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/range_access/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/range_access/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/range_access/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char.cc:
	...here.
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t.cc:
	...here.
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t.cc:
	...here.
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char8_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/char8_t.cc:
	...here.
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
	...here.
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string/requirements/explicit_instantiation/wchar_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char.cc:
	...here.
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char8_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char8_t.cc:
	...here.
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/int.cc:
	...here.
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t.cc:
	...here.
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char/1.cc:
	Moved to...
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char.cc:
	...here.
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc:
	Moved to...
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t.cc:
	...here.
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc:
	Moved to...
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t.cc:
	...here.
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char8_t/1.cc:
	Moved to...
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/char8_t.cc:
	...here.
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/short/1.cc:
	Moved to...
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/short.cc:
	...here.
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/wchar_t/1.cc:
	Moved to...
	* testsuite/21_strings/char_traits/requirements/explicit_instantiation/wchar_t.cc:
	...here.

Update copyright years.

2022-01-03T09:42:10+00:00

libstdc++: Fix tests that fail with fully-dynamic-string

2021-11-30T23:10:04+00:00

Fix some tests that assume that a moved-from string is empty, or that
default constructing a string doesn't allocate.

libstdc++-v3/ChangeLog:

	* testsuite/21_strings/basic_string/cons/char/moveable.cc: Allow
	moved-from string to be non-empty.
	* testsuite/21_strings/basic_string/cons/char/moveable2.cc:
	Likewise.
	* testsuite/21_strings/basic_string/cons/char/moveable2_c++17.cc:
	Likewise.
	* testsuite/21_strings/basic_string/cons/wchar_t/moveable.cc:
	Likewise.
	* testsuite/21_strings/basic_string/cons/wchar_t/moveable2.cc:
	Likewise.
	* testsuite/21_strings/basic_string/cons/wchar_t/moveable2_c++17.cc:
	Likewise.
	* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
	Construct empty string before setting oom flag.
	* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
	Likewise.