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gcc/libstdc++-v3
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Jonathan Wakely beb04ce9d4 Define new filesystem::__file_clock type 
In C++17 the clock used for filesystem::file_time_type is unspecified,
allowing it to be chrono::system_clock. The C++2a draft requires it to
be a distinct type, with additional member functions to convert to/from
other clocks (either the system clock or UTC). In order to avoid an ABI
change later, this patch defines a new distinct type now, which will be
used for std::chrono::file_clock later.

	* include/bits/fs_fwd.h (__file_clock): Define new clock.
	(file_time_type): Redefine in terms of __file_clock.
	* src/filesystem/ops-common.h (file_time): Add FIXME comment about
	overflow.
	* src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give
	internal linkage.
	(internal_file_lock): New helper type for accessing __file_clock.
	(do_copy_file): Use internal_file_lock to convert system time to
	file_time_type.
	(last_write_time(const path&, error_code&)): Likewise.
	(last_write_time(const path&, file_time_type, error_code&)): Likewise.

From-SVN: r267602
2019-01-05 20:03:22 +00:00
..
config Export explicit instantiations for C++17 members of std::string 2019-01-04 23:23:22 +00:00
doc Update copyright years. 2019-01-01 13:31:55 +01:00
include Define new filesystem::__file_clock type 2019-01-05 20:03:22 +00:00
libsupc++ Update copyright years. 2019-01-01 13:31:55 +01:00
po Update copyright years. 2019-01-01 13:31:55 +01:00
python Update copyright years. 2019-01-01 13:31:55 +01:00
scripts Update copyright years. 2019-01-01 13:31:55 +01:00
src Define new filesystem::__file_clock type 2019-01-05 20:03:22 +00:00
testsuite Add allocator-extended copy/move ctors to COW string 2019-01-04 23:23:17 +00:00
acinclude.m4 PR libstdc++/67843 set shared_ptr lock policy at build-time 2018-11-27 23:25:56 +00:00
aclocal.m4 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
ChangeLog Define new filesystem::__file_clock type 2019-01-05 20:03:22 +00:00
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ChangeLog-2017 Update copyright years. 2018-01-03 11:03:58 +01:00
ChangeLog-2018 Update copyright years. 2019-01-01 13:31:55 +01:00
config.h.in PR libstdc++/67843 set shared_ptr lock policy at build-time 2018-11-27 23:25:56 +00:00
configure PR libstdc++/67843 set shared_ptr lock policy at build-time 2018-11-27 23:25:56 +00:00
configure.ac PR libstdc++/67843 set shared_ptr lock policy at build-time 2018-11-27 23:25:56 +00:00
configure.host Don't force visibility to hidden for Darwin > 8. 2018-08-25 09:02:28 +00:00
crossconfig.m4 Define _GLIBCXX_USE_DEV_RANDOM as replacement for _GLIBCXX_USE_RANDOM_TR1 2018-10-16 15:49:29 +01:00
fragment.am PR libstdc++/86450 use -Wabi=2 and simplify -Werror use 2018-07-17 14:18:47 +01:00
linkage.m4
Makefile.am Update copyright years. 2019-01-01 13:31:55 +01:00
Makefile.in Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
README

README 

file: libstdc++-v3/README

New users may wish to point their web browsers to the file
index.html in the 'doc/html' subdirectory.  It contains brief
building instructions and notes on how to configure the library in
interesting ways.