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Author SHA1 Message Date
Howard Hinnant
9a894d93de Zhihao Yuan noted that there were a few unneeded statements. Eliminated the unnecessary ones, and commented the ones that are there for non-obvious reasons such as to help things limp along in C++03 language mode. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189039 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-22 18:29:50 +00:00
Howard Hinnant
1c44f51de7 Zhihao Yuan noted that a move assignment operation was missing from std::adjacent_difference. Fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189036 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-22 18:02:34 +00:00
Howard Hinnant
8a1df3ca0c David Blaikie suggested this test for detecting constexpr on the error_category default constructor. Additionally I decided to make this constructor trivial as well, as I could not come up with a rationale for not doing so. Fully tested with both current Apple clang and tip-of-trunk clang. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@189034 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-22 17:41:48 +00:00
Marshall Clow
5c316a6d04 LWG 2145 - mark constructor for std::error_category as inline and constexpr. Leave the (existing, out-of-line, non-constexpr) in the dylib for compatibility with existing programs) 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188858 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-21 02:57:19 +00:00
Howard Hinnant
de8fc6b2b1 Relax complete-type check for functions and function pointers to allow void return type. This bug was exposed by Eli Friedman's commit to clang r188324. Anywhere this version of clang ships, this libc++ fix must follow. However this fix is compatible with previous clangs, and so this libc++ doesn't need to wait for this clang. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188413 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-14 21:28:31 +00:00
Howard Hinnant
7f76450ee9 Xing Xue: port to IBM XLC++/AIX. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188396 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-14 18:00:20 +00:00
Marshall Clow
2df3700879 Add a deleted assignment operator for basic_ostream; LWG Issue #2067 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188375 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-14 15:15:28 +00:00
Marshall Clow
198a2a59ee Implement LWG Issue #2187 (emplace_back and emplace for vector<bool>) 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188333 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-13 23:54:12 +00:00
Marshall Clow
5cfc6ab2b8 Second half (map/multimap) of N3657 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188320 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-13 22:18:47 +00:00
Marshall Clow
4a0a98166c First half of support for N3657; heterogenous lookups for set/multiset 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188241 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-13 01:11:06 +00:00
Howard Hinnant
0f678bd69e Nico Rieck: this patch series fixes visibility issues on Windows as explained in <http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-August/031214.html>. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188192 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-12 18:38:34 +00:00
Howard Hinnant
80e19ac90f Add a check for arrays of unknown bounds to is_destructible. This fixes http://llvm.org/bugs/show_bug.cgi?id=16839 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188080 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-09 16:53:45 +00:00
Howard Hinnant
5ea5d31f6d Partial implementation of N3665. This paper was not voted into the C++1y draft. However I was looking at it and with some experimentation realized that I could partially implement it, and at the same time offer a performance optimization to cout. I simply added an xsputn override to the cout filebuf. The override does nothing special at all if there is a non-trivial codecvt installed. However if the codecvt returns true for always_noconv(), then this function can dump an entire string to fwrite, instead of doing it a character at a time under overflow(). This just makes sense. I stopped short of a full implementation of N3665 because in order to do so, xsputn would have to allocate a buffer when always_noconv() returned false, and I don't want to go to that expense. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188077 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-09 16:25:43 +00:00
Marshall Clow
051c848e88 N3644 tests for map/multimap/set/multiset. Drive-by NOEXCEPT for __tree_const_iterator constructor. Fix comment typos in other tests 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188019 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-08 21:52:50 +00:00
Howard Hinnant
a4e87abbb9 My previous reorganization of addressof broke -std=c++03. Thanks much to Arnold Schwaighofer for catching this. This patch also catches a few more missing addressof in <future>, thanks go to Zhihao Yuan for catching these. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187997 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-08 18:38:55 +00:00
Arnold Schwaighofer
a709c823f7 Revert r187927. 
Zhihao Yuan: Replace operator& with addressof in reference_wrapper constructor.

It breaks a clang bootstrap.



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187959 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-08 03:06:24 +00:00
Howard Hinnant
d8bfe7ba56 Zhihao Yuan: Replace operator& with addressof in reference_wrapper constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187927 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 23:02:42 +00:00
Marshall Clow
193ef03eb5 N3644 support for <unordered_set> and <unordered_map> 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187915 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 21:30:44 +00:00
Marshall Clow
b92ee614f2 N3644 support for vector<bool> 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187911 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 20:53:44 +00:00
Marshall Clow
0f164c9d75 N3644 support for <string> and <vector> 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187909 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 20:48:48 +00:00
Howard Hinnant
36ba399a33 Correct logic bug in find optimization for vector<bool>. This fixes http://llvm.org/bugs/show_bug.cgi?id=16816 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187908 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 20:42:16 +00:00
Howard Hinnant
ab61b2c9f1 War on tabs 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187906 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-07 19:39:48 +00:00
Marshall Clow
5a11f94583 Implement NULL iterators for <forward_list> and <deque> re: N3644 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187805 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-06 16:14:36 +00:00
Marshall Clow
65d2e6a392 Implement NULL iterators for <list> re: N3644 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187740 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-05 21:23:28 +00:00
Howard Hinnant
824c19963e debug mode for unordered_map. Also picked up a missing check and test in unordered_multimap. This wraps up debug mode for the unordered containers. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187659 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-02 17:50:49 +00:00
Howard Hinnant
8b00e6c960 Ok, 3 major changes for debug mode in one commit: 
1.  I had been detecting and trapping iterator == and \!= among iterators
    in different containers as an error.  But the trapping itself is actually
    an error.
    
    Consider:
    
    #include <iostream>
    #include <vector>
    #include <algorithm>

    template <class C>
    void
    display(const C& c)
    {
        std::cout << "{";
        bool first = true;
        for (const auto& x : c)
        {
            if (\!first)
                std::cout << ", ";
            first = false;
            std::cout << x;
        }
        std::cout << "}\n";
    }

    int
    main()
    {
        typedef std::vector<int> V;
        V v1 = {1, 3, 5};
        V v2 = {2, 4, 6};
        display(v1);
        display(v2);
        V::iterator i = std::find(v1.begin(), v1.end(), 1);
        V::iterator j = std::find(v2.begin(), v2.end(), 2);
        if (*i == *j)
            i = j;    // perfectly legal
        // ...
        if (i \!= j)   // the only way to check
            v2.push_back(*i);
        display(v1);
        display(v2);
    }

    It is legal to assign an iterator from one container to another of the
    same type.  This is required to work.  One might want to test whether or
    not such an assignment had been made.  The way one performs such a check
    is using the iterator's ==, \!= operator.  This is a logical and necessary
    function and does not constitute an error.

2.  I had a header circular dependence bug when _LIBCPP_DEBUG2 is defined.
    This caused a problem in several of the libc++ tests.
    Fixed.

3.  There is a serious problem when _LIBCPP_DEBUG2=1 at the moment in that
    std::basic_string is inoperable.  std::basic_string uses __wrap_iterator
    to implement its iterators.  __wrap_iterator has been rigged up in debug
    mode to support vector.  But string hasn't been rigged up yet.  This means
    that one gets false positives when using std::string in debug mode.  I've
    upped std::string's priority in www/debug_mode.html.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187636 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-02 00:26:35 +00:00
Howard Hinnant
e9df0a5c6c Nico Rieck: Currently _MSC_VER and _WIN32 are used to guard code which is 
MSVC-specific, MSVCRT-specific, or Windows-specific. Because Clang can
also define _MSC_VER, and MSVCRT is not necessarily the only C runtime,
these macros should not be used interchangeably.

This patch divides all Windows-related bits into the aforementioned
categories. Two new macros are introduced:

- _LIBCPP_MSVC: Defined when compiling with MSVC. Detected using
  _MSC_VER, excluding Clang.
- _LIBCPP_MSVCRT: Defined when using the Microsoft CRT. This is the default
   when _WIN32 is defined.

This leaves _WIN32 for code using the Windows API.

This also corrects the spelling of _LIBCP_HAS_IS_BASE_OF to _LIBCPP_HAS_IS_BASE_OF.

Nico, please prepare a patch for CREDITS.TXT, thanks.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187593 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-01 18:17:34 +00:00
Howard Hinnant
56dcf0b809 Taking another swing at correctly optimizing fill_n. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187587 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-01 17:29:28 +00:00
Howard Hinnant
eb34122153 Constrain fill_n -> memset operations to include implicit convertibility to unsigned char. This fixes http://llvm.org/bugs/show_bug.cgi?id=16764. Also a drive-by fix on a chrono test suite bug. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187552 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-08-01 00:41:55 +00:00
Marshall Clow
a61e6f8705 Implement constexpr (n3302) and fix operator *= and /= 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187529 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-31 21:02:34 +00:00
Marshall Clow
0777473911 Backwards! 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187518 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-31 19:39:37 +00:00
Marshall Clow
832b304076 Implement n3469 - constexpr for chrono 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187517 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-31 19:32:19 +00:00
Howard Hinnant
f890d9bfaa Debug mode for unordered_multimap. Some mods were done for unordered_map as well to keep all the tests passing. However unordered_map is at the very least still missing tests, if not functionality (if it isn't tested, it probably isn't working). 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187446 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-30 21:04:42 +00:00
Howard Hinnant
0bb0a7c9ea Debug mode for unordered_multiset. The exercise spotted a few places I had missed on unordered_set, so I picked those up as well. 
There are actually two debug modes:

   1.  -D_LIBCPP_DEBUG2 or -D_LIBCPP_DEBUG2=1
       This is a relatively expensive debug mode, but very thorough.  This is normally what you want to debug with, but may turn O(1) operations into O(N) operations.

   2.  -D_LIBCPP_DEBUG2=0
       This is "debug lite."  Only preconditions that can be checked with O(1) expense are checked.  For example range checking on an indexing operation.  But not iterator validity.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187369 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-29 19:05:47 +00:00
Marshall Clow
ff46409221 Implement N3421; comparison predicates<void> 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187357 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-29 14:21:53 +00:00
Marshall Clow
f182038521 literal suffixes for std::chrono 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187078 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-24 21:18:14 +00:00
Howard Hinnant
39213641f4 Debug mode for unordered_set. I believe this to be fairly complete for 
unordered_set, however it is not complete yet for unordered_multiset,
unordered_map or unordered_multimap.  There has been a lot of work done
for these other three containers, however that work was done just to
keep all of the tests passing.

You can try this out with -D_LIBCPP_DEBUG2.  You will have to link to a
libc++.dylib that has been compiled with src/debug.cpp.  So far, vector
(but not vector<bool>), list, and unordered_set are treated.  I hope to
get the other three unordered containers up fairly quickly now that
unordered_set is done.

The flag _LIBCPP_DEBUG2 will eventually be changed to _LIBCPP_DEBUG, but
not today.  This is my second effort at getting debug mode going for
libc++, and I'm not quite yet ready to throw all of the work under the
first attempt away.

The basic design is that all of the debug information is kept in a
central database, instead of in the containers.  This has been done as
an attempt to have debug mode and non-debug mode be ABI compatible with
each other.  There are some circumstances where if you construct a
container in an environment without debug mode and pass it into debug
mode, the checking will get confused and let you know with a readable
error message.  Passing containers the other way: from debug mode out to
a non-debugging mode container should be 100% safe (at least that is the
goal).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186991 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-23 22:01:58 +00:00
Marshall Clow
152343260f Implement string suffixes from N3642 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186956 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-23 17:05:24 +00:00
Howard Hinnant
cd59accbf5 Bill Fisher: This patch fixes a bug where std::regex in ECMAScript mode was ignoring capture groups inside lookahead assertions. 
For example, matching /(?=(a))(a)/ to "a" should yield two captures: \1 = "a", \2 = "a"

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186954 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-23 16:18:04 +00:00
Richard Smith
01fbfc2fa6 Add some missing cv-qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186909 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-23 01:24:30 +00:00
Anders Carlsson
b8e0d9086e Fix a bug in std::fill_n where memset would end up being called in cases when it shouldn’t. 
Reviewed by Howard.



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186875 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-22 21:08:00 +00:00
Marshall Clow
da0a0e8a1b Make tuple's constructor and std::get<>(tuple) constexpr. Final stage of fixing bug #16599. Thanks to Howard for the review and updates. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186834 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-22 16:02:19 +00:00
Marshall Clow
8fc4f5a251 Make std::get constexpr 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186525 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-17 18:25:36 +00:00
Marshall Clow
206f6cdc33 Bug 16599 part 2: Make std::pair's constructors and comparison operators (and make_pair) constexpr. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186430 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-16 17:45:44 +00:00
Marshall Clow
01a0e90783 Make std::forward and std::move (and std::move_if_noexcept) constexpr in C++14 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186344 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-15 20:46:11 +00:00
Howard Hinnant
1e1d05121d Bill Fisher: This patch fixes an ill-formed comparison when parsing control escapes, e.g. "\cA\ca". The code will now throw an error_escape exception for invalid control sequences like "\c:" or "\c". 
I've added the test cases to bad_escape.pass.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186335 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-15 18:21:11 +00:00
Marshall Clow
ac93d0ebf2 Add macro _LIBCPP_CONSTEXPR_AFTER_CXX11 for functions that have been marked constexpr post C++11 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186323 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-15 14:57:19 +00:00
Marshall Clow
e8029e54f1 Implement n3584 - Addressing Tuples by Type 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186237 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-13 02:54:05 +00:00
Howard Hinnant
e840208989 Bill Fisher: This patch fixes a less likely case where '\b' can back up into invalid memory, when driven by a regex_iterator (for case 1, see r185273 or http://llvm.org/bugs/show_bug.cgi?id=16240) 
The attached test program also supplies a test for the case 1 fix in r185273.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186089 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-11 15:32:55 +00:00
Marshall Clow
809e93f7f2 move __save_flags from <random> to <ios> in preparation for reuse; no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185968 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-09 20:34:14 +00:00