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43 Commits

Author SHA1 Message Date
Howard Hinnant 35abaab7d3 This patch introduces an alternative layout for basic_string which when the string is short, the data pointer will be word-aligned. It can be activated with -D_LIBCPP_ALTERNATE_STRING_LAYOUT. These two different layouts (the default and _LIBCPP_ALTERNATE_STRING_LAYOUT) are not ABI compatible with each other. Once one is chosen for a given platform, it is disruptive to change it. 
llvm-svn: 180811
 2013-04-30 21:44:48 +00:00
Howard Hinnant 210051548e Modest performance improvement for std::string's operator==. 
llvm-svn: 180072
 2013-04-22 23:55:13 +00:00
Howard Hinnant 6e41256f68 No functionality change at this time. I've split _LIBCPP_VISIBLE up into two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS. This is in preparation for taking advantage of clang's new __type_visibility__ attribute. 
llvm-svn: 176593
 2013-03-06 23:30:19 +00:00
Howard Hinnant aba500d633 Revert accidental check-in. These changes are probably good, but premature at this point. 
llvm-svn: 174625
 2013-02-07 15:31:44 +00:00
Howard Hinnant 804f9116e5 Michael van der Westhuizen: The attached patch add support for building against libc++abi and libcxxrt to CMake builds of libc++. 
Usage (with the appropriate CC and CXX environment variables) is:
$ cmake -DLIBCXX_CXX_ABI=libcxxabi '-DLIBCXX_LIBCXXABI_INCLUDE_PATHS=/home/michael/libcxxabi/include' ../libcxx
and:
$ cmake -DLIBCXX_CXX_ABI=libcxxrt '-DLIBCXX_LIBCXXRT_INCLUDE_PATHS=/home/michael/libcxxrt/src' ../libcxx

llvm-svn: 174623
 2013-02-07 15:27:39 +00:00
Howard Hinnant 861f006d3f Klaas de Vries: Fix bug in libc++'s std::string::find_first_not_of. 
llvm-svn: 171321
 2012-12-31 20:09:48 +00:00
Howard Hinnant cd47cbc7a4 Provide a way to disable use of extern templates in libc++. This is intended for the clients of libc++, not the libc++ build. The dylib should always contain the extern templates. To disable the client needs to put -D'_LIBCPP_EXTERN_TEMPLATE(...)=' on the command line. 
llvm-svn: 167486
 2012-11-06 21:08:48 +00:00
Howard Hinnant 54d333a601 Rename uses of _ and __ because these are getting stepped on by macros from other system code. 
llvm-svn: 167038
 2012-10-30 19:06:59 +00:00
Argyrios Kyrtzidis 88db3171dd Don't neglect to "return *this". 
llvm-svn: 165860
 2012-10-13 02:03:45 +00:00
Howard Hinnant 931644bfec constexpr applied to <string>. 
llvm-svn: 160563
 2012-07-20 19:09:12 +00:00
Howard Hinnant 53d2fb0aa2 Installation of CityHash by Craig Silverstein 
llvm-svn: 146329
 2011-12-10 20:28:56 +00:00
Howard Hinnant f3d14a65ca Starting using murmur2 when combining multiple size_t's into a single hash, and also for basic_string. Also made hash<thread::id> ever so slighly more portable. I had to tweak one test which is questionable (definitely not portable) anyway. 
llvm-svn: 145795
 2011-12-05 00:08:45 +00:00
Howard Hinnant c206366fd7 Quash a whole bunch of warnings 
llvm-svn: 145624
 2011-12-01 20:21:04 +00:00
Howard Hinnant ab4f438239 Add protection from min/max macros 
llvm-svn: 145407
 2011-11-29 16:45:27 +00:00
Howard Hinnant e4383379ae More windows port work by Ruben Van Boxem 
llvm-svn: 142732
 2011-10-22 20:59:45 +00:00
Howard Hinnant 073458b1ab Windows support by Ruben Van Boxem. 
llvm-svn: 142235
 2011-10-17 20:05:10 +00:00
Howard Hinnant 8668139f36 Fix const correctness bug in __move_assign. Found and fixed by Ion Gaztañaga. 
llvm-svn: 139032
 2011-09-02 20:42:31 +00:00
Howard Hinnant e41124ade1 Don't move assign string::allocator_type when propagate_on_container_move_assignment is false. 
llvm-svn: 137862
 2011-08-17 20:36:18 +00:00
Howard Hinnant 54976f2619 Fixed PR10574: http://llvm.org/bugs/show_bug.cgi?id=10574 
llvm-svn: 137522
 2011-08-12 21:56:02 +00:00
Alexis Hunt 8d2ed56644 Add a new hash class in __gnu_ext for the extension containers. There 
are two motivations for this.

First, this allows users who are specializing __gnu_ext::hash to
continue doing so without changing their code.

Second, SGI specifies hash overloads for char* and const char* that
perform a hash of the string, not of the pointer.

In order to support this, the hashing code for string is factored out.

llvm-svn: 136539
 2011-07-29 23:31:56 +00:00
Howard Hinnant 520a61383c Optimization of string::operator< by M.E. O'Neill. Discussion in http://llvm.org/bugs/show_bug.cgi?id=10461 
llvm-svn: 135893
 2011-07-24 21:45:06 +00:00
Howard Hinnant 5b0bdc2043 http://llvm.org/bugs/show_bug.cgi?id=10461 
llvm-svn: 135873
 2011-07-24 15:07:21 +00:00
Howard Hinnant e3163f5ae3 http://llvm.org/bugs/show_bug.cgi?id=10390 
llvm-svn: 135393
 2011-07-18 15:51:59 +00:00
Howard Hinnant 11af28bdbd Fixing up some ABI issues 
llvm-svn: 134639
 2011-07-07 21:03:52 +00:00
Howard Hinnant ce48a1137d _STD -> _VSTD to avoid macro clash on windows 
llvm-svn: 134190
 2011-06-30 21:18:19 +00:00
Howard Hinnant ce53420e37 Provide names for template and function parameters in forward declarations. The purpose is to aid automated documentation tools. 
llvm-svn: 133008
 2011-06-14 19:58:17 +00:00
Howard Hinnant 2d45a18c24 Bring noexcept for <string> inline with other containers. 
llvm-svn: 132573
 2011-06-03 18:40:47 +00:00
Howard Hinnant 76c7cd0e15 noexcept for Chapter 21 [strings]. 
llvm-svn: 132296
 2011-05-29 19:57:12 +00:00
Howard Hinnant ad16003517 Add always_inline to string move constructors 
llvm-svn: 124252
 2011-01-26 00:06:59 +00:00
Howard Hinnant 36fd9f96cf Reverting an old optimization that conflicts with the new allocator model, and causes some test casees to compile that shouldn't. 
llvm-svn: 122830
 2011-01-04 19:53:31 +00:00
Howard Hinnant c950e77d1d Effort to reduce the number of exported symbols 
llvm-svn: 122057
 2010-12-17 14:46:43 +00:00
Howard Hinnant 5ba1459c4c LWG 1323 
llvm-svn: 119560
 2010-11-17 21:11:40 +00:00
Howard Hinnant 57d1ebcc38 Update <string> to use allocator_traits. 
llvm-svn: 119522
 2010-11-17 17:55:08 +00:00
Howard Hinnant e060133553 visibility-decoration. 
llvm-svn: 114671
 2010-09-23 17:31:07 +00:00
Howard Hinnant f9cca3b7d0 I am experimenting with putting visibility-default attributes on all struct/classes in libc++. This checkin decorates only basic_string and vector as an experiment, and for review by those in this audience that might know more about visibilty than I do. If I get no negative feedback on this procedure I will begin to decorate the entire library in this way. 
llvm-svn: 113590
 2010-09-10 16:42:26 +00:00
Howard Hinnant 7609c9b665 Changed __config to react to all of clang's currently documented has_feature flags, and renamed _LIBCPP_MOVE to _LIBCPP_HAS_NO_RVALUE_REFERENCES to be more consistent with the rest of the libc++'s flags, and with clang's nomenclature. 
llvm-svn: 113086
 2010-09-04 23:28:19 +00:00
Howard Hinnant b3371f6f49 Fixing whitespace problems 
llvm-svn: 111750
 2010-08-22 00:02:43 +00:00
Howard Hinnant eb2692571f patch by Jesse Towner, and bug fix by Sebastian Redl 
llvm-svn: 110724
 2010-08-10 20:48:29 +00:00
Howard Hinnant cbbf633edb [string.conversions] 
llvm-svn: 105336
 2010-06-02 18:20:39 +00:00
Howard Hinnant 128ba7191d patch by Jeffrey Yasskin for porting to Ubuntu Hardy. Everything was accepted except there were some bug fixes needed in <locale> for the __nolocale_* series. For the apple branch I ended up using templates instead of the var_args solution because it seemed both safer and more efficient. 
llvm-svn: 104516
 2010-05-24 17:49:41 +00:00
Howard Hinnant deb23ecdf9 [rand.dist.bern.bin]. The evaluation function for this binomial distribution is hopefully just a placeholder. It is using the simplest and slowest method for computing the distribution and needs to be upgraded. 
llvm-svn: 103524
 2010-05-11 23:26:59 +00:00
Howard Hinnant 5b08a8a432 Wiped out some non-ascii characters that snuck into the copyright. 
llvm-svn: 103516
 2010-05-11 21:36:01 +00:00
Howard Hinnant 3e519524c1 libcxx initial import 
llvm-svn: 103490
 2010-05-11 19:42:16 +00:00