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Louis Dionne 396145d0da [libc++] Fix error flags and exceptions propagated from input stream operations 
Summary:
This is a re-application of r357533 and r357531. They had been reverted
because we thought the commits broke the LLDB data formatters, but it
turns out this was because only r357531 had been included in the CI
run.

Before this patch, we would only ever throw an exception if the badbit
was set on the stream. The Standard is currently very unclear on how
exceptions should be propagated and what error flags should be set by
the input stream operations. This commit changes libc++ to behave under
a different (but valid) interpretation of the Standard. This interpretation
of the Standard matches what other implementations are doing.

This effectively implements the wording in p1264r0. It hasn't been voted
into the Standard yet, however there is wide agreement that the fix is
correct and it's just a matter of time before the fix is standardized.

PR21586
PR15949
rdar://problem/15347558

Reviewers: mclow.lists, EricWF

Subscribers: christof, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D49863

llvm-svn: 357775
 		2019-04-05 16:33:37 +00:00
..
experimental Revert "[coroutines] Add std::experimental::task<T> type" 2019-03-26 19:50:46 +00:00
ext Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
support [libc++] Remove empty header xlocale/xlocale.h 2019-03-11 15:41:51 +00:00
CMakeLists.txt Revert "[coroutines] Add std::experimental::task<T> type" 2019-03-26 19:50:46 +00:00
__bit_reference Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__bsd_locale_defaults.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__bsd_locale_fallbacks.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__config Fix PR#35967: '<regex> syntax_option_type is not a proper bitmask' Sadly, this is an ABI break, so it's only available if you define either '_LIBCPP_ABI_VERSION > 2' or '_LIBCPP_ABI_UNSTABLE' or '_LIBCPP_ABI_REGEX_CONSTANTS_NONZERO' and rebuild your dylib. 2019-03-28 17:30:23 +00:00
__config_site.in Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__debug Remove exception throwing debug mode handler support. 2019-03-18 21:50:12 +00:00
__errc Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__functional_03 Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__functional_base Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__functional_base_03 Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__hash_table Remove exception throwing debug mode handler support. 2019-03-18 21:50:12 +00:00
__libcpp_version Bump the trunk version to 9.0.0svn 2019-01-16 10:57:02 +00:00
__locale Fix and speedup __libcpp_locale_guard on Windows 2019-03-27 18:09:30 +00:00
__mutex_base Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__node_handle [libc++] Remove visibility-related warnings with Clang 8 2019-02-27 17:33:25 +00:00
__nullptr Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__split_buffer [Libc++] Use #pragma push_macro/pop_macro to better handle min/max on Windows 2017-05-31 22:07:49 +00:00
__sso_allocator Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__std_stream Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__string Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
__threading_support Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
__tree Apply D28248: 'Work around GCC PR37804'. Thanks to mdaniels for the patch 2019-01-23 23:06:18 +00:00
__tuple [libc++] Declare std::tuple_element as struct instead of class 2019-04-01 16:39:34 +00:00
__undef_macros Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
algorithm libcxx: Add _LIBCPP_NODISCARD_EXT to 38 more functions 2019-04-03 18:13:08 +00:00
any Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
array [libc++] Declare std::tuple_element as struct instead of class 2019-04-01 16:39:34 +00:00
atomic Fix C++03 build failure 2019-03-08 23:30:26 +00:00
bit Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
bitset Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cassert Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
ccomplex Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cctype Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cerrno Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cfenv Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cfloat Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
charconv Make to_chars/from_chars work back to C++11. This means that we can use them to implement to_string as well. Reviewed as https://reviews.llvm.org/D59598. 2019-03-20 18:13:23 +00:00
chrono Fix PR41130 - 'operator/ of std::chrono::duration and custom type'. Thanks to Zulan for the report, and Howard for the direction of the fix. 2019-04-01 16:38:02 +00:00
cinttypes Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ciso646 Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
climits Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
clocale Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cmath Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
codecvt Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
compare Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
complex Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
complex.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
condition_variable Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
csetjmp Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
csignal Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstdarg Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstdbool Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstddef Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstdint Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstdio Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstdlib Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cstring Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ctgmath Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
ctime Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
ctype.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cwchar Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
cwctype Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
deque Mark 'front()' and 'back()' as noexcept for array/deque/string/string_view. These are just rebranded 'operator[]', and should be noexcept like it is. 2019-03-19 03:30:07 +00:00
errno.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
exception Make VCRuntime ABI configuration a first-class option. 2019-03-05 01:57:01 +00:00
fenv.h Mark fenv.h as a system header before the #include_next directive 2019-03-29 16:03:57 +00:00
filesystem [libc++] Mark <filesystem> as unavailable on Apple platforms using pragmas 2019-03-20 21:18:14 +00:00
float.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
forward_list Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
fstream [libc++] Mark <filesystem> tests as failing when the dylib doesn't support filesystem 2019-03-20 14:34:00 +00:00
functional [libc++] Use std::is_nothrow_callable for std::invoke according to LWG 2807 2019-04-03 17:54:37 +00:00
future Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
initializer_list Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
inttypes.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
iomanip Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
ios [libc++] Fix error flags and exceptions propagated from input stream operations 2019-04-05 16:33:37 +00:00
iosfwd Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
iostream Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
istream [libc++] Fix error flags and exceptions propagated from input stream operations 2019-04-05 16:33:37 +00:00
iterator Fix a minor bug with std::next and prev not and negative numbers. In particular, std::prev cannot require Bidirectional Iterators, because you might 'go back' -1 places, which goes forward. Thanks to Ville and Jonathan for the bug report. 2019-03-22 22:32:20 +00:00
limits Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
limits.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
list Remove exception throwing debug mode handler support. 2019-03-18 21:50:12 +00:00
locale add a test and a couple minor bug fixes for the implicit-signed-integer-truncation sanitizer. This is PR#40566 2019-02-01 21:59:27 +00:00
locale.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
map [libc++] Avoid UB in the no-exceptions mode in a few places 2019-02-12 16:06:02 +00:00
math.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
memory Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
module.modulemap Revert "[coroutines] Add std::experimental::task<T> type" 2019-03-26 19:50:46 +00:00
mutex libc++/win: Make once_flag have the same size as a pointer. 2019-03-20 22:55:03 +00:00
new Make VCRuntime ABI configuration a first-class option. 2019-03-05 01:57:01 +00:00
numeric Add std::midpoint for integral and poiner types. Described in P0811, reviewed as D59099. 2019-03-14 16:25:55 +00:00
optional Cleaup of requirements for optional. While researching LWG3196, I realized that optional did not reject 'const in_place_t' like it should. Added a test as well, and a check for arrays (which were already disallowed, but now we get a better error message). Should not affect anyone's code. 2019-03-25 16:35:59 +00:00
ostream Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
queue Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
random Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
ratio Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
regex Fix PR#35967: '<regex> syntax_option_type is not a proper bitmask' Sadly, this is an ABI break, so it's only available if you define either '_LIBCPP_ABI_VERSION > 2' or '_LIBCPP_ABI_UNSTABLE' or '_LIBCPP_ABI_REGEX_CONSTANTS_NONZERO' and rebuild your dylib. 2019-03-28 17:30:23 +00:00
scoped_allocator Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
set Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
setjmp.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
shared_mutex Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
span [libc++] Declare std::tuple_element as struct instead of class 2019-04-01 16:39:34 +00:00
sstream add a test and a couple minor bug fixes for the implicit-signed-integer-truncation sanitizer. This is PR#40566 2019-02-01 21:59:27 +00:00
stack Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
stdbool.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
stddef.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
stdexcept Fix ABI compatibility of `<stdexcept>` with VCRuntime. 2019-03-06 20:31:57 +00:00
stdint.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
stdio.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
stdlib.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
streambuf Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
string Mark 'front()' and 'back()' as noexcept for array/deque/string/string_view. These are just rebranded 'operator[]', and should be noexcept like it is. 2019-03-19 03:30:07 +00:00
string.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
string_view Mark 'front()' and 'back()' as noexcept for array/deque/string/string_view. These are just rebranded 'operator[]', and should be noexcept like it is. 2019-03-19 03:30:07 +00:00
strstream Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
system_error Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
tgmath.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
thread Fix backwards test that I committed yesterday. Sigh 2019-04-03 00:01:03 +00:00
tuple [libc++] Declare std::tuple_element as struct instead of class 2019-04-01 16:39:34 +00:00
type_traits [libc++] (Take 2) Correctly handle Objective-C++ ARC qualifiers in std::is_pointer 2019-04-03 14:29:52 +00:00
typeindex Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
typeinfo Make VCRuntime ABI configuration a first-class option. 2019-03-05 01:57:01 +00:00
unordered_map [libc++] Avoid UB in the no-exceptions mode in a few places 2019-02-12 16:06:02 +00:00
unordered_set Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
utility [libc++] Declare std::tuple_element as struct instead of class 2019-04-01 16:39:34 +00:00
valarray Fix a number of bugs in __val_expr's subset operator[]. 2019-04-02 08:05:23 +00:00
variant Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
vector Add visibility attributes and inline to some vector methods. 2019-03-19 19:19:44 +00:00
version Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
wchar.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00
wctype.h Update more file headers across all of the LLVM projects in the monorepo 2019-01-19 10:56:40 +00:00