This rebase skips the following patches in upstream:
+ 37025e1b32
Make the helper routines in string really be constexpr. This required a
bit of refacoring in algorithm as well. Give them better names while
we're at it. All of these are internal rotines; no visible functionality
change.
+ 164b297099
Implement string_view from the library fundamentals TS (n4023). Also
works in C++11 and 03, with reduced functionality (mostly in the area of
constexpr)
+ e4694b4129
Formatting improvements in the <string_view> synopsis suggested by
RSmith. No functionality change.
+ 3a61b30f3a
Minor cleanup for string_view; mostly from suggestions by Richard Smith.
Also, make the tests pass under c++03
+ 484728789e
string_view enhancements. Move to the correct namespace. Better
constexpr support (thanks to Richard for the suggestions). Update the
tests to match this. Add <experimental/__config for experimental
macros/etc to live.
+ b1a40264dc
[libcxx] Add <experimental/utility> header for LFTS.
+ 3ee7233c80
[libcxx] expose experimental::erased_type for all standard versions.
+ 67740670f9
NFC. Remove trailing whitespace and tabs.
+ b9536101dc
NFC. Move definition of _LIBCPP_ASSERT into __debug header and remove
external include guards.
+ 98c4e404ca.
Revert "Turn off extern templates for most uses."
Bug: 17255369
Change-Id: I629ff16275d50e4cc8767b253a2c0542468348d8
code to specify what version of POSIX the system should provide. If
you want to check what version of POSIX is actually available, you're
supposed to test _POSIX_VERSION.
However, since sysconf() has been in POSIX since 1995, it's probably
safe to assume it's available on any system with a C++11 compiler,
especially if _SC_NPROCESSORS_ONLN is defined too. So no point in a
complicated preprocessor rule if just we unconditionally include
<unistd.h> (on non-Windows systems).
Also, I've added a #warning for to help porters detect when a suitable
implementation isn't detected at compile-time.
Howard: Matthew, can you patch CREDITS.TXT? Thanks.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185275 91177308-0d34-0410-b5e6-96231b3b80d8
functions to protect against duration and time_point overflow. Since
we're about to wait anyway, we can afford to spend a few more cycles on
this checking. I purposefully did not treat the timed try_locks with
overflow checking. This fixes
http://llvm.org/bugs/show_bug.cgi?id=13721 . I'm unsure if the standard
needs clarification in this area, or if this is simply QOI. The
<chrono> facilities were never intended to overflow check, but just to
not overflow if durations stayed within +/- 292 years.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@162925 91177308-0d34-0410-b5e6-96231b3b80d8
std:🧵:hardware_concurrency for platforms that don't offer
sysctl, but do provide a POSIX sysconf and _SC_NPROCESSORS_ONLN.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@161190 91177308-0d34-0410-b5e6-96231b3b80d8
Solaris not providing some of the locales that the test suite uses.
Note: This depends on an xlocale (partial) implementation for Solaris and a
couple of fixed standard headers. These will be committed to a branch later
today.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@151720 91177308-0d34-0410-b5e6-96231b3b80d8
