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gcc/libstdc++-v3
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Ville Voutilainen 509912a611 Make poisoned hashes SFINAE away the call operator of the hash. 
* include/bits/functional_hash.h
(__poison_hash::__enable_hash_call): New.
* include/std/optional (__optional_hash_call_base): New.
(hash<optional<_Tp>>): Derive from the new base,
move the hash function into that base.
* include/std/variant (__variant_hash_call_base_impl): New.
(__variant_hash_call_base): Likewise.
(hash<variant<_Types...>>): Derive from the new base,
move the hash function into that base.
* testsuite/20_util/optional/hash.cc: Add tests for is_callable.
* testsuite/20_util/variant/hash.cc: Likewise.

From-SVN: r244748
2017-01-21 17:38:23 +02:00
..
config PR65411 don't retry fclose on EINTR 2017-01-13 17:52:34 +00:00
doc Fix typo in recent doc updates 2017-01-19 23:15:13 +00:00
include Make poisoned hashes SFINAE away the call operator of the hash. 2017-01-21 17:38:23 +02:00
libsupc++ PR79114 use decayed type in std::throw_with_nested assertion 2017-01-17 15:26:06 +00:00
po re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 2017-01-17 10:38:48 +01:00
python re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 2017-01-17 10:38:48 +01:00
scripts Update copyright years. 2017-01-01 13:07:43 +01:00
src re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 2017-01-17 10:38:48 +01:00
testsuite Make poisoned hashes SFINAE away the call operator of the hash. 2017-01-21 17:38:23 +02:00
acinclude.m4 Support unsigned __int20 in checks for size_t mangling 2017-01-20 17:46:36 +00:00
aclocal.m4 Build libgo with -Wa,-nH if possible (PR go/78978) [non-libgo parts] 2017-01-06 14:33:47 +00:00
ChangeLog Make poisoned hashes SFINAE away the call operator of the hash. 2017-01-21 17:38:23 +02:00
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ChangeLog-2016 Update copyright years. 2017-01-01 13:07:43 +01:00
config.h.in PR79017 workaround incomplete C99 math on darwin 2017-01-09 17:15:58 +00:00
configure Support unsigned __int20 in checks for size_t mangling 2017-01-20 17:46:36 +00:00
configure.ac re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 2017-01-17 10:38:48 +01:00
configure.host
crossconfig.m4 crossconfig.m4: Add fuchsia OS. 2017-01-17 23:36:12 +00:00
fragment.am re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 2017-01-17 10:38:48 +01:00
linkage.m4
Makefile.am Update copyright years. 2017-01-01 13:07:43 +01:00
Makefile.in re PR other/79046 (g++ -print-file-name=plugin uses full version number in path) 2017-01-17 10:38:48 +01:00
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.