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Author SHA1 Message Date
Ed Schouten
63e70b67eb Add support for arc4random() to random_device. 
Nuxi CloudABI (https://github.com/NuxiNL/cloudlibc) does not allow
processes to access the global filesystem namespace. This breaks
random_device, as it attempts to use /dev/{u,}random. This change adds
support for arc4random(), which is present on CloudABI.

In my opinion it would also make sense to use arc4random() on other
operating systems, such as *BSD and Mac OS X, but I'd rather leave that
to the maintainers of the respective platforms. Switching to
arc4random() does change the ABI.

This change also attempts to make some cleanups to the code. It adds a
single #define for every random interface, instead of testing against
operating systems explicitly.

As discussed, also validate the token argument to be equal to
"/dev/urandom" on all systems that only provide pseudo-random numbers.
This should cause little to no breakage, as "/dev/urandom" is also the
default argument value.

Reviewed by: jfb
Differential Revision: http://reviews.llvm.org/D8134


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@231764 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-10 07:46:06 +00:00
Eric Fiselier
f51d676a0e Get libc++ building on Sun Solaris. Patch from C Bergstrom. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@226947 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-01-23 22:22:36 +00:00
JF Bastien
2bd5ffd330 libc++: add NaCl and PNaCl support for std::random_device 
Summary:
The NaCl sandbox doesn't allow opening files under /dev, but it offers an API which provides the same capabilities. This is the same random device emulation that nacl_io performs for POSIX support, but nacl_io is an optional library so libc++ can't assume that device emulation will be performed. Note that NaCl only supports /dev/urandom, not /dev/random.

This patch also cleans up some of the preprocessor #endif, and fixes the test for Win32 (it accepts any token, and would therefore never throw regardless of the token provided).

Test Plan: ninja check-libcxx

Reviewers: dschuff, mclow.lists, danalbert

Subscribers: jfb, cfe-commits

Differential Revision: http://reviews.llvm.org/D6442

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@223068 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-12-01 19:19:55 +00:00
Marshall Clow
5ffb8d0fbe Fix PR#20843: binomial_distribution<unsigned> is broken. Add test to ensure that signed and unsigned verstions produce the same sequence. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@217976 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-09-17 18:33:58 +00:00
Marshall Clow
65ccddb341 Mark seed_seq default constructor and size() as noexcept. This is implied, but not required by LWG issue 2180 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@193227 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-23 05:56:47 +00:00
Marshall Clow
b8dd5caf5a patch by Yaron: Uses rand_s() from stdlib.h (when building for Windows) 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@192325 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-09 21:49:03 +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
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
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
Howard Hinnant
ddb4e4cbb1 Neglected to remove a debugging comment from last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@182422 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-05-21 21:19:35 +00:00
Howard Hinnant
8f72d5ce16 Fix a couple of bugs in linear_congruential_engine::seed. Regression test added. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@182421 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-05-21 21:05:12 +00:00
Howard Hinnant
83eade6abb 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. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@176593 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-06 23:30:19 +00:00
Howard Hinnant
0a69fa14d2 Zhang Xiongpang: Add definitions for const data members. Fixes http://llvm.org/bugs/show_bug.cgi?id=14585. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@170026 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-12 21:14:28 +00:00
Howard Hinnant
9c0df1416f Rename uses of _ and __ because these are getting stepped on by macros from other system code. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@167038 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-30 19:06:59 +00:00
Howard Hinnant
33be35effe Dimitry Andric: many visibility fixes. Howard: Much appreciated. Can you send me a patch to CREDITS.TXT? 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@163862 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-14 00:39:16 +00:00
Howard Hinnant
c83960a9e4 noexcept applied to <random>. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@160579 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-07-20 21:44:27 +00:00
Howard Hinnant
8efd3dac5d Update <random> with constexpr support. Patch contributed by Jonathan Sauer. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@153896 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-02 21:00:45 +00:00
Howard Hinnant
27b4fd30ef This is an initial commit of constexpr support as proposed by Richard Smith. This by no means completes constexpr support. Indeed, it hardly scratches the surface. All it does is lay the foundation in <__config> and changes those few places in the library that are already using that foundation. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@153856 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-02 00:40:41 +00:00
Howard Hinnant
ec3773c2da Quash a whole bunch of warnings 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145624 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-01 20:21:04 +00:00
Howard Hinnant
9996844df0 Further macro protection by replacing _[A-Z] with _[A-Z]p 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145410 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-29 18:15:50 +00:00
Howard Hinnant
66c6f9733b Add protection from min/max macros 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145407 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-29 16:45:27 +00:00
Howard Hinnant
08e17472e4 Windows support by Ruben Van Boxem. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@142235 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-17 20:05:10 +00:00
Howard Hinnant
43edf2d1e1 Fix needle-in-haystack bug found by Walter Brown 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@137617 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 17:22:22 +00:00
Howard Hinnant
e3e3291f3a Fixed PR10574: http://llvm.org/bugs/show_bug.cgi?id=10574 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@137522 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 21:56:02 +00:00
Howard Hinnant
0949eedbd6 _STD -> _VSTD to avoid macro clash on windows 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@134190 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-30 21:18:19 +00:00
Howard Hinnant
75f7695c62 Think-o in poisson_distribution at mean == 10 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@129520 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-14 15:59:22 +00:00
Howard Hinnant
ef3b2e2e34 Fix bug in Sseq constraints found by Seth Cantrell 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@129285 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-11 18:22:12 +00:00
Howard Hinnant
995676a98e LWG 1522 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:34:48 +00:00
Howard Hinnant
9650b6cce3 LWG 1439 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119703 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:01:36 +00:00
Howard Hinnant
b64f8b07c1 license change 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 22:09:02 +00:00
Howard Hinnant
3c143ad882 Patch by Marshall Clow to make the assignment operators of piecewise_constant_distribution and piecewise_linear_distribution exception safe. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@116404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 14:37:09 +00:00
Howard Hinnant
b9af2eae4a visibility-decoration. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@114559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 18:02:38 +00:00
Howard Hinnant
73d21a4f07 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. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@113086 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-04 23:28:19 +00:00
Howard Hinnant
324bb03bb9 Fixing whitespace problems 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-22 00:02:43 +00:00
Howard Hinnant
3ec31849df Implemented some adaptor constructors which I had missed. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-28 15:49:54 +00:00
Howard Hinnant
c326721e65 Completed [alg.random.shuffle]. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104708 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-26 17:49:34 +00:00
Howard Hinnant
5430540d57 [rand.dist.samp.plinear]. This means we've got a fully tested and functional <random>! 489 tests over 48 sections are passing. :-) The only thing still on my plate in this area is to back-port some of this technology to random_shuffle/shuffle in <algorithm>. That will involve shuffling header bits around (<random> depepends on <algorithm>), but it won't entail that much development (compared to what has been required for <random>). 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-25 00:27:34 +00:00
Howard Hinnant
2a59254a44 Optimized [rand.dist.samp.pconst] and several bug fixes in other distributions 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104478 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-24 00:35:40 +00:00
Howard Hinnant
d6d1171f2c [rand.dist.samp.pconst] plus some bug fixes in the tests of the other distributions 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-20 15:11:46 +00:00
Howard Hinnant
551d8e4ddb [rand.dist.samp.discrete] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104103 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 01:53:57 +00:00
Howard Hinnant
321b4bb7ae [rand.dist.norm.t] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 20:08:04 +00:00
Howard Hinnant
d8bc09b616 [rand.dist.norm.f] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@104035 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:32:30 +00:00
Howard Hinnant
d7d0113295 [rand.dist.norm.cauchy]. I'm having trouble testing the output as all statistical properties are undefined. They do not converge upon any one value as the number of samples increases. Suggestions for tests welcome. 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103983 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 21:55:46 +00:00
Howard Hinnant
2bc36fcff3 [rand.dist.norm.lognormal] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103957 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 18:31:53 +00:00
Howard Hinnant
c2b0dc7e33 [rand.dist.pois.extreme] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 16:21:56 +00:00
Howard Hinnant
34e8a57b76 [rand.dist.bern.geo] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103937 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 13:44:27 +00:00
Howard Hinnant
f2fe5d5a61 [rand.dist.bern.negbin] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 00:09:38 +00:00
Howard Hinnant
df40dc6c1a Beefed up the tests for all of the distributions to include checks against the expected skewness and kurtosis 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103910 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-16 17:56:20 +00:00
Howard Hinnant
9de6e30761 [rand.dist.pois.weibull] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103891 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-16 01:09:02 +00:00
Howard Hinnant
97dc2f35c3 [rand.dist.norm.chisq] 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103888 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-15 23:36:00 +00:00