imrcpan/freebsd
1
0 Fork 0
mirror of https://github.com/freebsd/freebsd-src.git synced 2026-10-30 12:25:10 +01:00
Code Issues Packages Projects Releases Wiki Activity
Files
17b66b68c3d4fa66ca57504aeccc8da7c3cfc405
freebsd/contrib/libc++/include/bitset
T
Dimitry Andric e8948c9522 Merge clang, llvm, lld, lldb, compiler-rt and libc++ 5.0.0 release. 
MFC r309126 (by emaste):

  Correct lld llvm-tblgen dependency file name

MFC r309169:

  Get rid of separate Subversion mergeinfo properties for llvm-dwarfdump
  and llvm-lto.  The mergeinfo confuses Subversion enormously, and these
  directories will just use the mergeinfo for llvm itself.

MFC r312765:

  Pull in r276136 from upstream llvm trunk (by Wei Mi):

    Use ValueOffsetPair to enhance value reuse during SCEV expansion.

    In D12090, the ExprValueMap was added to reuse existing value during
    SCEV expansion. However, const folding and sext/zext distribution can
    make the reuse still difficult.

    A simplified case is: suppose we know S1 expands to V1 in
    ExprValueMap, and
      S1 = S2 + C_a
      S3 = S2 + C_b
    where C_a and C_b are different SCEVConstants. Then we'd like to
    expand S3 as V1 - C_a + C_b instead of expanding S2 literally. It is
    helpful when S2 is a complex SCEV expr and S2 has no entry in
    ExprValueMap, which is usually caused by the fact that S3 is
    generated from S1 after const folding.

    In order to do that, we represent ExprValueMap as a mapping from SCEV
    to ValueOffsetPair. We will save both S1->{V1, 0} and S2->{V1, C_a}
    into the ExprValueMap when we create SCEV for V1. When S3 is
    expanded, it will first expand S2 to V1 - C_a because of S2->{V1,
    C_a} in the map, then expand S3 to V1 - C_a + C_b.

    Differential Revision: https://reviews.llvm.org/D21313

  This should fix assertion failures when building OpenCV >= 3.1.

  PR:		215649

MFC r312831:

  Revert r312765 for now, since it causes assertions when building
  lang/spidermonkey24.

  Reported by:	antoine
  PR:		215649

MFC r316511 (by jhb):

  Add an implementation of __ffssi2() derived from __ffsdi2().

  Newer versions of GCC include an __ffssi2() symbol in libgcc and the
  compiler can emit calls to it in generated code.  This is true for at
  least GCC 6.2 when compiling world for mips and mips64.

  Reviewed by:	jmallett, dim
  Sponsored by:	DARPA / AFRL
  Differential Revision:	https://reviews.freebsd.org/D10086

MFC r318601 (by adrian):

  [libcompiler-rt] add bswapdi2/bswapsi2

  This is required for mips gcc 6.3 userland to build/run.

  Reviewed by:	emaste, dim
  Approved by:	emaste
  Differential Revision:	https://reviews.freebsd.org/D10838

MFC r318884 (by emaste):

  lldb: map TRAP_CAP to a trace trap

  In the absense of a more specific handler for TRAP_CAP (generated by
  ENOTCAPABLE or ECAPMODE while in capability mode) treat it as a trace
  trap.

  Example usage (testing the bug in PR219173):

  % proccontrol -m trapcap lldb usr.bin/hexdump/obj/hexdump -- -Cv -s 1 /bin/ls
  ...
  (lldb) run
  Process 12980 launching
  Process 12980 launched: '.../usr.bin/hexdump/obj/hexdump' (x86_64)
  Process 12980 stopped
  * thread #1, stop reason = trace
      frame #0: 0x0000004b80c65f1a libc.so.7`__sys_lseek + 10
  ...

  In the future we should have LLDB control the trapcap procctl itself
  (as it does with ASLR), as well as report a specific stop reason.
  This change eliminates an assertion failure from LLDB for now.

MFC r319796:

  Remove a few unneeded files from libllvm, libclang and liblldb.

MFC r319885 (by emaste):

  lld: ELF: Fix ICF crash on absolute symbol relocations.

  If two sections contained relocations to absolute symbols with the same
  value we would crash when trying to access their sections. Add a check that
  both symbols point to sections before accessing their sections, and treat
  absolute symbols as equal if their values are equal.

  Obtained from:	LLD commit r292578

MFC r319918:

  Revert r319796 for now, it can cause undefined references when linking
  in some circumstances.

  Reported by:	Shawn Webb <[email protected]>

MFC r319957 (by emaste):

  lld: Add armelf emulation mode

  Obtained from:	LLD r305375

MFC r321369:

  Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to
  5.0.0 (trunk r308421).  Upstream has branched for the 5.0.0 release,
  which should be in about a month.  Please report bugs and regressions,
  so we can get them into the release.

  Please note that from 3.5.0 onwards, clang, llvm and lldb require C++11
  support to build; see UPDATING for more information.

MFC r321420:

  Add a few more object files to liblldb, which should solve errors when
  linking the lldb executable in some cases.  In particular, when the
  -ffunction-sections -fdata-sections options are turned off, or
  ineffective.

  Reported by:	Shawn Webb, Mark Millard

MFC r321433:

  Cleanup stale Options.inc files from the previous libllvm build for
  clang 4.0.0.  Otherwise, these can get included before the two newly
  generated ones (which are different) for clang 5.0.0.

  Reported by:	Mark Millard

MFC r321439 (by bdrewery):

  Move llvm Options.inc hack from r321433 for NO_CLEAN to lib/clang/libllvm.

  The files are only ever generated to .OBJDIR, not to WORLDTMP (as a
  sysroot) and are only ever included from a compilation.  So using
  a beforebuild target here removes the file before the compilation
  tries to include it.

MFC r321664:

  Pull in r308891 from upstream llvm trunk (by Benjamin Kramer):

    [CodeGenPrepare] Cut off FindAllMemoryUses if there are too many uses.

    This avoids excessive compile time. The case I'm looking at is
    Function.cpp from an old version of LLVM that still had the giant
    memcmp string matcher in it. Before r308322 this compiled in about 2
    minutes, after it, clang takes infinite* time to compile it. With
    this patch we're at 5 min, which is still bad but this is a
    pathological case.

    The cut off at 20 uses was chosen by looking at other cut-offs in LLVM
    for user scanning. It's probably too high, but does the job and is
    very unlikely to regress anything.

    Fixes PR33900.

    * I'm impatient and aborted after 15 minutes, on the bug report it was
      killed after 2h.

  Pull in r308986 from upstream llvm trunk (by Simon Pilgrim):

    [X86][CGP] Reduce memcmp() expansion to 2 load pairs (PR33914)

    D35067/rL308322 attempted to support up to 4 load pairs for memcmp
    inlining which resulted in regressions for some optimized libc memcmp
    implementations (PR33914).

    Until we can match these more optimal cases, this patch reduces the
    memcmp expansion to a maximum of 2 load pairs (which matches what we
    do for -Os).

    This patch should be considered for the 5.0.0 release branch as well

    Differential Revision: https://reviews.llvm.org/D35830

  These fix a hang (or extremely long compile time) when building older
  LLVM ports.

  Reported by:    antoine
  PR:             219139

MFC r321719:

  Pull in r309503 from upstream clang trunk (by Richard Smith):

    PR33902: Invalidate line number cache when adding more text to
    existing buffer.

    This led to crashes as the line number cache would report a bogus
    line number for a line of code, and we'd try to find a nonexistent
    column within the line when printing diagnostics.

  This fixes an assertion when building the graphics/champlain port.

  Reported by:	antoine, kwm
  PR:		219139

MFC r321723:

  Upgrade our copies of clang, llvm, lld and lldb to r309439 from the
  upstream release_50 branch.  This is just after upstream's 5.0.0-rc1.

MFC r322320:

  Upgrade our copies of clang, llvm and libc++ to r310316 from the
  upstream release_50 branch.

MFC r322326 (by emaste):

  lldb: Make i386-*-freebsd expression work on JIT path

  * Enable i386 ABI creation for freebsd
  * Added an extra argument in ABISysV_i386::PrepareTrivialCall for mmap
    syscall
  * Unlike linux, the last argument of mmap is actually 64-bit(off_t).
    This requires us to push an additional word for the higher order bits.
  * Prior to this change, ktrace dump will show mmap failures due to
    invalid argument coming from the 6th mmap argument.

  Submitted by:	Karnajit Wangkhem
  Differential Revision:	https://reviews.llvm.org/D34776

MFC r322360 (by emaste):

  lldb: Report inferior signals as signals, not exceptions, on FreeBSD

  This is the FreeBSD equivalent of LLVM r238549.

  This serves 2 purposes:

  * LLDB should handle inferior process signals SIGSEGV/SIGILL/SIGBUS/
    SIGFPE the way it is suppose to be handled. Prior to this fix these
    signals will neither create a coredump, nor exit from the debugger
    or work for signal handling scenario.
  * eInvalidCrashReason need not report "unknown crash reason" if we have
    a valid si_signo

  llvm.org/pr23699

  Patch by Karnajit Wangkhem

  Differential Revision:  https://reviews.llvm.org/D35223

  Submitted by:	Karnajit Wangkhem
  Obtained from:	LLVM r310591

MFC r322474 (by emaste):

  lld: Add `-z muldefs` option.

  Obtained from:	LLVM r310757

MFC r322740:

  Upgrade our copies of clang, llvm, lld and libc++ to r311219 from the
  upstream release_50 branch.

MFC r322855:

  Upgrade our copies of clang, llvm, lldb and compiler-rt to r311606 from
  the upstream release_50 branch.

  As of this version, lib/msun's trig test should also work correctly
  again (see bug 220989 for more information).

  PR:		220989

MFC r323112:

  Upgrade our copies of clang, llvm, lldb and compiler-rt to r312293 from
  the upstream release_50 branch.  This corresponds to 5.0.0 rc4.

  As of this version, the cad/stepcode port should now compile in a more
  reasonable time on i386 (see bug 221836 for more information).

  PR:		221836

MFC r323245:

  Upgrade our copies of clang, llvm, lld, lldb, compiler-rt and libc++ to
  5.0.0 release (upstream r312559).

  Release notes for llvm, clang and lld will be available here soon:
  <http://releases.llvm.org/5.0.0/docs/ReleaseNotes.html>
  <http://releases.llvm.org/5.0.0/tools/clang/docs/ReleaseNotes.html>
  <http://releases.llvm.org/5.0.0/tools/lld/docs/ReleaseNotes.html>

  Relnotes:	yes
2017-09-26 19:56:36 +00:00

1098 lines
32 KiB
C++
Raw Blame History

// -*- C++ -*-
//===---------------------------- bitset ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_BITSET
#define _LIBCPP_BITSET
/*
bitset synopsis
namespace std
{
namespace std {
template <size_t N>
class bitset
{
public:
// bit reference:
class reference
{
friend class bitset;
reference() noexcept;
public:
~reference() noexcept;
reference& operator=(bool x) noexcept; // for b[i] = x;
reference& operator=(const reference&) noexcept; // for b[i] = b[j];
bool operator~() const noexcept; // flips the bit
operator bool() const noexcept; // for x = b[i];
reference& flip() noexcept; // for b[i].flip();
};
// 23.3.5.1 constructors:
constexpr bitset() noexcept;
constexpr bitset(unsigned long long val) noexcept;
template <class charT>
explicit bitset(const charT* str,
typename basic_string<charT>::size_type n = basic_string<charT>::npos,
charT zero = charT('0'), charT one = charT('1'));
template<class charT, class traits, class Allocator>
explicit bitset(const basic_string<charT,traits,Allocator>& str,
typename basic_string<charT,traits,Allocator>::size_type pos = 0,
typename basic_string<charT,traits,Allocator>::size_type n =
basic_string<charT,traits,Allocator>::npos,
charT zero = charT('0'), charT one = charT('1'));
// 23.3.5.2 bitset operations:
bitset& operator&=(const bitset& rhs) noexcept;
bitset& operator|=(const bitset& rhs) noexcept;
bitset& operator^=(const bitset& rhs) noexcept;
bitset& operator<<=(size_t pos) noexcept;
bitset& operator>>=(size_t pos) noexcept;
bitset& set() noexcept;
bitset& set(size_t pos, bool val = true);
bitset& reset() noexcept;
bitset& reset(size_t pos);
bitset operator~() const noexcept;
bitset& flip() noexcept;
bitset& flip(size_t pos);
// element access:
constexpr bool operator[](size_t pos) const; // for b[i];
reference operator[](size_t pos); // for b[i];
unsigned long to_ulong() const;
unsigned long long to_ullong() const;
template <class charT, class traits, class Allocator>
basic_string<charT, traits, Allocator> to_string(charT zero = charT('0'), charT one = charT('1')) const;
template <class charT, class traits>
basic_string<charT, traits, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const;
template <class charT>
basic_string<charT, char_traits<charT>, allocator<charT> > to_string(charT zero = charT('0'), charT one = charT('1')) const;
basic_string<char, char_traits<char>, allocator<char> > to_string(char zero = '0', char one = '1') const;
size_t count() const noexcept;
constexpr size_t size() const noexcept;
bool operator==(const bitset& rhs) const noexcept;
bool operator!=(const bitset& rhs) const noexcept;
bool test(size_t pos) const;
bool all() const noexcept;
bool any() const noexcept;
bool none() const noexcept;
bitset operator<<(size_t pos) const noexcept;
bitset operator>>(size_t pos) const noexcept;
};
// 23.3.5.3 bitset operators:
template <size_t N>
bitset<N> operator&(const bitset<N>&, const bitset<N>&) noexcept;
template <size_t N>
bitset<N> operator|(const bitset<N>&, const bitset<N>&) noexcept;
template <size_t N>
bitset<N> operator^(const bitset<N>&, const bitset<N>&) noexcept;
template <class charT, class traits, size_t N>
basic_istream<charT, traits>&
operator>>(basic_istream<charT, traits>& is, bitset<N>& x);
template <class charT, class traits, size_t N>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x);
template <size_t N> struct hash<std::bitset<N>>;
} // std
*/
#include <__config>
#include <__bit_reference>
#include <cstddef>
#include <climits>
#include <string>
#include <stdexcept>
#include <iosfwd>
#include <__functional_base>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <size_t _N_words, size_t _Size>
class __bitset;
template <size_t _N_words, size_t _Size>
struct __has_storage_type<__bitset<_N_words, _Size> >
{
static const bool value = true;
};
template <size_t _N_words, size_t _Size>
class __bitset
{
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
friend class __bit_reference<__bitset>;
friend class __bit_const_reference<__bitset>;
friend class __bit_iterator<__bitset, false>;
friend class __bit_iterator<__bitset, true>;
friend struct __bit_array<__bitset>;
__storage_type __first_[_N_words];
typedef __bit_reference<__bitset> reference;
typedef __bit_const_reference<__bitset> const_reference;
typedef __bit_iterator<__bitset, false> iterator;
typedef __bit_iterator<__bitset, true> const_iterator;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT
{return reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT
{return const_reference(__first_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT
{return iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT
{return const_iterator(__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY
void operator&=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void operator|=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void operator^=(const __bitset& __v) _NOEXCEPT;
void flip() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const
{return to_ulong(integral_constant<bool, _Size < sizeof(unsigned long) * CHAR_BIT>());}
_LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const
{return to_ullong(integral_constant<bool, _Size < sizeof(unsigned long long) * CHAR_BIT>());}
bool all() const _NOEXCEPT;
bool any() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_t __hash_code() const _NOEXCEPT;
private:
#ifdef _LIBCPP_CXX03_LANG
void __init(unsigned long long __v, false_type) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void __init(unsigned long long __v, true_type) _NOEXCEPT;
#endif // _LIBCPP_CXX03_LANG
unsigned long to_ulong(false_type) const;
_LIBCPP_INLINE_VISIBILITY
unsigned long to_ulong(true_type) const;
unsigned long long to_ullong(false_type) const;
_LIBCPP_INLINE_VISIBILITY
unsigned long long to_ullong(true_type) const;
_LIBCPP_INLINE_VISIBILITY
unsigned long long to_ullong(true_type, false_type) const;
unsigned long long to_ullong(true_type, true_type) const;
};
template <size_t _N_words, size_t _Size>
inline
_LIBCPP_CONSTEXPR
__bitset<_N_words, _Size>::__bitset() _NOEXCEPT
#ifndef _LIBCPP_CXX03_LANG
: __first_{0}
#endif
{
#ifdef _LIBCPP_CXX03_LANG
_VSTD::fill_n(__first_, _N_words, __storage_type(0));
#endif
}
#ifdef _LIBCPP_CXX03_LANG
template <size_t _N_words, size_t _Size>
void
__bitset<_N_words, _Size>::__init(unsigned long long __v, false_type) _NOEXCEPT
{
__storage_type __t[sizeof(unsigned long long) / sizeof(__storage_type)];
for (size_t __i = 0; __i < sizeof(__t)/sizeof(__t[0]); ++__i, __v >>= __bits_per_word)
__t[__i] = static_cast<__storage_type>(__v);
_VSTD::copy(__t, __t + sizeof(__t)/sizeof(__t[0]), __first_);
_VSTD::fill(__first_ + sizeof(__t)/sizeof(__t[0]), __first_ + sizeof(__first_)/sizeof(__first_[0]),
__storage_type(0));
}
template <size_t _N_words, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
void
__bitset<_N_words, _Size>::__init(unsigned long long __v, true_type) _NOEXCEPT
{
__first_[0] = __v;
_VSTD::fill(__first_ + 1, __first_ + sizeof(__first_)/sizeof(__first_[0]), __storage_type(0));
}
#endif // _LIBCPP_CXX03_LANG
template <size_t _N_words, size_t _Size>
inline
_LIBCPP_CONSTEXPR
__bitset<_N_words, _Size>::__bitset(unsigned long long __v) _NOEXCEPT
#ifndef _LIBCPP_CXX03_LANG
#if __SIZEOF_SIZE_T__ == 8
: __first_{__v}
#elif __SIZEOF_SIZE_T__ == 4
: __first_{static_cast<__storage_type>(__v), static_cast<__storage_type>(__v >> __bits_per_word)}
#else
#error This constructor has not been ported to this platform
#endif
#endif
{
#ifdef _LIBCPP_CXX03_LANG
__init(__v, integral_constant<bool, sizeof(unsigned long long) == sizeof(__storage_type)>());
#endif
}
template <size_t _N_words, size_t _Size>
inline
void
__bitset<_N_words, _Size>::operator&=(const __bitset& __v) _NOEXCEPT
{
for (size_type __i = 0; __i < _N_words; ++__i)
__first_[__i] &= __v.__first_[__i];
}
template <size_t _N_words, size_t _Size>
inline
void
__bitset<_N_words, _Size>::operator|=(const __bitset& __v) _NOEXCEPT
{
for (size_type __i = 0; __i < _N_words; ++__i)
__first_[__i] |= __v.__first_[__i];
}
template <size_t _N_words, size_t _Size>
inline
void
__bitset<_N_words, _Size>::operator^=(const __bitset& __v) _NOEXCEPT
{
for (size_type __i = 0; __i < _N_words; ++__i)
__first_[__i] ^= __v.__first_[__i];
}
template <size_t _N_words, size_t _Size>
void
__bitset<_N_words, _Size>::flip() _NOEXCEPT
{
// do middle whole words
size_type __n = _Size;
__storage_pointer __p = __first_;
for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word)
*__p = ~*__p;
// do last partial word
if (__n > 0)
{
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
__storage_type __b = *__p & __m;
*__p &= ~__m;
*__p |= ~__b & __m;
}
}
template <size_t _N_words, size_t _Size>
unsigned long
__bitset<_N_words, _Size>::to_ulong(false_type) const
{
const_iterator __e = __make_iter(_Size);
const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long) * CHAR_BIT), __e, true);
if (__i != __e)
__throw_overflow_error("bitset to_ulong overflow error");
return __first_[0];
}
template <size_t _N_words, size_t _Size>
inline
unsigned long
__bitset<_N_words, _Size>::to_ulong(true_type) const
{
return __first_[0];
}
template <size_t _N_words, size_t _Size>
unsigned long long
__bitset<_N_words, _Size>::to_ullong(false_type) const
{
const_iterator __e = __make_iter(_Size);
const_iterator __i = _VSTD::find(__make_iter(sizeof(unsigned long long) * CHAR_BIT), __e, true);
if (__i != __e)
__throw_overflow_error("bitset to_ullong overflow error");
return to_ullong(true_type());
}
template <size_t _N_words, size_t _Size>
inline
unsigned long long
__bitset<_N_words, _Size>::to_ullong(true_type) const
{
return to_ullong(true_type(), integral_constant<bool, sizeof(__storage_type) < sizeof(unsigned long long)>());
}
template <size_t _N_words, size_t _Size>
inline
unsigned long long
__bitset<_N_words, _Size>::to_ullong(true_type, false_type) const
{
return __first_[0];
}
template <size_t _N_words, size_t _Size>
unsigned long long
__bitset<_N_words, _Size>::to_ullong(true_type, true_type) const
{
unsigned long long __r = __first_[0];
for (std::size_t __i = 1; __i < sizeof(unsigned long long) / sizeof(__storage_type); ++__i)
__r |= static_cast<unsigned long long>(__first_[__i]) << (sizeof(__storage_type) * CHAR_BIT);
return __r;
}
template <size_t _N_words, size_t _Size>
bool
__bitset<_N_words, _Size>::all() const _NOEXCEPT
{
// do middle whole words
size_type __n = _Size;
__const_storage_pointer __p = __first_;
for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word)
if (~*__p)
return false;
// do last partial word
if (__n > 0)
{
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
if (~*__p & __m)
return false;
}
return true;
}
template <size_t _N_words, size_t _Size>
bool
__bitset<_N_words, _Size>::any() const _NOEXCEPT
{
// do middle whole words
size_type __n = _Size;
__const_storage_pointer __p = __first_;
for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word)
if (*__p)
return true;
// do last partial word
if (__n > 0)
{
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n);
if (*__p & __m)
return true;
}
return false;
}
template <size_t _N_words, size_t _Size>
inline
size_t
__bitset<_N_words, _Size>::__hash_code() const _NOEXCEPT
{
size_t __h = 0;
for (size_type __i = 0; __i < _N_words; ++__i)
__h ^= __first_[__i];
return __h;
}
template <size_t _Size>
class __bitset<1, _Size>
{
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
friend class __bit_reference<__bitset>;
friend class __bit_const_reference<__bitset>;
friend class __bit_iterator<__bitset, false>;
friend class __bit_iterator<__bitset, true>;
friend struct __bit_array<__bitset>;
__storage_type __first_;
typedef __bit_reference<__bitset> reference;
typedef __bit_const_reference<__bitset> const_reference;
typedef __bit_iterator<__bitset, false> iterator;
typedef __bit_iterator<__bitset, true> const_iterator;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t __pos) _NOEXCEPT
{return reference(&__first_, __storage_type(1) << __pos);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t __pos) const _NOEXCEPT
{return const_reference(&__first_, __storage_type(1) << __pos);}
_LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t __pos) _NOEXCEPT
{return iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t __pos) const _NOEXCEPT
{return const_iterator(&__first_ + __pos / __bits_per_word, __pos % __bits_per_word);}
_LIBCPP_INLINE_VISIBILITY
void operator&=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void operator|=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void operator^=(const __bitset& __v) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void flip() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
unsigned long to_ulong() const;
_LIBCPP_INLINE_VISIBILITY
unsigned long long to_ullong() const;
_LIBCPP_INLINE_VISIBILITY
bool all() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bool any() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
size_t __hash_code() const _NOEXCEPT;
};
template <size_t _Size>
inline
_LIBCPP_CONSTEXPR
__bitset<1, _Size>::__bitset() _NOEXCEPT
: __first_(0)
{
}
template <size_t _Size>
inline
_LIBCPP_CONSTEXPR
__bitset<1, _Size>::__bitset(unsigned long long __v) _NOEXCEPT
: __first_(static_cast<__storage_type>(__v))
{
}
template <size_t _Size>
inline
void
__bitset<1, _Size>::operator&=(const __bitset& __v) _NOEXCEPT
{
__first_ &= __v.__first_;
}
template <size_t _Size>
inline
void
__bitset<1, _Size>::operator|=(const __bitset& __v) _NOEXCEPT
{
__first_ |= __v.__first_;
}
template <size_t _Size>
inline
void
__bitset<1, _Size>::operator^=(const __bitset& __v) _NOEXCEPT
{
__first_ ^= __v.__first_;
}
template <size_t _Size>
inline
void
__bitset<1, _Size>::flip() _NOEXCEPT
{
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size);
__first_ = ~__first_;
__first_ &= __m;
}
template <size_t _Size>
inline
unsigned long
__bitset<1, _Size>::to_ulong() const
{
return __first_;
}
template <size_t _Size>
inline
unsigned long long
__bitset<1, _Size>::to_ullong() const
{
return __first_;
}
template <size_t _Size>
inline
bool
__bitset<1, _Size>::all() const _NOEXCEPT
{
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size);
return !(~__first_ & __m);
}
template <size_t _Size>
inline
bool
__bitset<1, _Size>::any() const _NOEXCEPT
{
__storage_type __m = ~__storage_type(0) >> (__bits_per_word - _Size);
return __first_ & __m;
}
template <size_t _Size>
inline
size_t
__bitset<1, _Size>::__hash_code() const _NOEXCEPT
{
return __first_;
}
template <>
class __bitset<0, 0>
{
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
friend class __bit_reference<__bitset>;
friend class __bit_const_reference<__bitset>;
friend class __bit_iterator<__bitset, false>;
friend class __bit_iterator<__bitset, true>;
friend struct __bit_array<__bitset>;
typedef __bit_reference<__bitset> reference;
typedef __bit_const_reference<__bitset> const_reference;
typedef __bit_iterator<__bitset, false> iterator;
typedef __bit_iterator<__bitset, true> const_iterator;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR __bitset() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
explicit _LIBCPP_CONSTEXPR __bitset(unsigned long long) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY reference __make_ref(size_t) _NOEXCEPT
{return reference(0, 1);}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR const_reference __make_ref(size_t) const _NOEXCEPT
{return const_reference(0, 1);}
_LIBCPP_INLINE_VISIBILITY iterator __make_iter(size_t) _NOEXCEPT
{return iterator(0, 0);}
_LIBCPP_INLINE_VISIBILITY const_iterator __make_iter(size_t) const _NOEXCEPT
{return const_iterator(0, 0);}
_LIBCPP_INLINE_VISIBILITY void operator&=(const __bitset&) _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY void operator|=(const __bitset&) _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY void operator^=(const __bitset&) _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY void flip() _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY unsigned long to_ulong() const {return 0;}
_LIBCPP_INLINE_VISIBILITY unsigned long long to_ullong() const {return 0;}
_LIBCPP_INLINE_VISIBILITY bool all() const _NOEXCEPT {return true;}
_LIBCPP_INLINE_VISIBILITY bool any() const _NOEXCEPT {return false;}
_LIBCPP_INLINE_VISIBILITY size_t __hash_code() const _NOEXCEPT {return 0;}
};
inline
_LIBCPP_CONSTEXPR
__bitset<0, 0>::__bitset() _NOEXCEPT
{
}
inline
_LIBCPP_CONSTEXPR
__bitset<0, 0>::__bitset(unsigned long long) _NOEXCEPT
{
}
template <size_t _Size> class _LIBCPP_TEMPLATE_VIS bitset;
template <size_t _Size> struct hash<bitset<_Size> >;
template <size_t _Size>
class _LIBCPP_TEMPLATE_VIS bitset
: private __bitset<_Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1, _Size>
{
public:
static const unsigned __n_words = _Size == 0 ? 0 : (_Size - 1) / (sizeof(size_t) * CHAR_BIT) + 1;
typedef __bitset<__n_words, _Size> base;
public:
typedef typename base::reference reference;
typedef typename base::const_reference const_reference;
// 23.3.5.1 constructors:
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bitset() _NOEXCEPT {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bitset(unsigned long long __v) _NOEXCEPT : base(__v) {}
template<class _CharT>
explicit bitset(const _CharT* __str,
typename basic_string<_CharT>::size_type __n = basic_string<_CharT>::npos,
_CharT __zero = _CharT('0'), _CharT __one = _CharT('1'));
template<class _CharT, class _Traits, class _Allocator>
explicit bitset(const basic_string<_CharT,_Traits,_Allocator>& __str,
typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos = 0,
typename basic_string<_CharT,_Traits,_Allocator>::size_type __n =
(basic_string<_CharT,_Traits,_Allocator>::npos),
_CharT __zero = _CharT('0'), _CharT __one = _CharT('1'));
// 23.3.5.2 bitset operations:
_LIBCPP_INLINE_VISIBILITY
bitset& operator&=(const bitset& __rhs) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bitset& operator|=(const bitset& __rhs) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bitset& operator^=(const bitset& __rhs) _NOEXCEPT;
bitset& operator<<=(size_t __pos) _NOEXCEPT;
bitset& operator>>=(size_t __pos) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bitset& set() _NOEXCEPT;
bitset& set(size_t __pos, bool __val = true);
_LIBCPP_INLINE_VISIBILITY
bitset& reset() _NOEXCEPT;
bitset& reset(size_t __pos);
_LIBCPP_INLINE_VISIBILITY
bitset operator~() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bitset& flip() _NOEXCEPT;
bitset& flip(size_t __pos);
// element access:
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
const_reference operator[](size_t __p) const {return base::__make_ref(__p);}
_LIBCPP_INLINE_VISIBILITY reference operator[](size_t __p) {return base::__make_ref(__p);}
_LIBCPP_INLINE_VISIBILITY
unsigned long to_ulong() const;
_LIBCPP_INLINE_VISIBILITY
unsigned long long to_ullong() const;
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator> to_string(_CharT __zero = _CharT('0'),
_CharT __one = _CharT('1')) const;
template <class _CharT, class _Traits>
_LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, _Traits, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'),
_CharT __one = _CharT('1')) const;
template <class _CharT>
_LIBCPP_INLINE_VISIBILITY
basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> > to_string(_CharT __zero = _CharT('0'),
_CharT __one = _CharT('1')) const;
_LIBCPP_INLINE_VISIBILITY
basic_string<char, char_traits<char>, allocator<char> > to_string(char __zero = '0',
char __one = '1') const;
_LIBCPP_INLINE_VISIBILITY
size_t count() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR size_t size() const _NOEXCEPT {return _Size;}
_LIBCPP_INLINE_VISIBILITY
bool operator==(const bitset& __rhs) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bool operator!=(const bitset& __rhs) const _NOEXCEPT;
bool test(size_t __pos) const;
_LIBCPP_INLINE_VISIBILITY
bool all() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bool any() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY bool none() const _NOEXCEPT {return !any();}
_LIBCPP_INLINE_VISIBILITY
bitset operator<<(size_t __pos) const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bitset operator>>(size_t __pos) const _NOEXCEPT;
private:
_LIBCPP_INLINE_VISIBILITY
size_t __hash_code() const _NOEXCEPT {return base::__hash_code();}
friend struct hash<bitset>;
};
template <size_t _Size>
template<class _CharT>
bitset<_Size>::bitset(const _CharT* __str,
typename basic_string<_CharT>::size_type __n,
_CharT __zero, _CharT __one)
{
size_t __rlen = _VSTD::min(__n, char_traits<_CharT>::length(__str));
for (size_t __i = 0; __i < __rlen; ++__i)
if (__str[__i] != __zero && __str[__i] != __one)
__throw_invalid_argument("bitset string ctor has invalid argument");
size_t _Mp = _VSTD::min(__rlen, _Size);
size_t __i = 0;
for (; __i < _Mp; ++__i)
{
_CharT __c = __str[_Mp - 1 - __i];
if (__c == __zero)
(*this)[__i] = false;
else
(*this)[__i] = true;
}
_VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false);
}
template <size_t _Size>
template<class _CharT, class _Traits, class _Allocator>
bitset<_Size>::bitset(const basic_string<_CharT,_Traits,_Allocator>& __str,
typename basic_string<_CharT,_Traits,_Allocator>::size_type __pos,
typename basic_string<_CharT,_Traits,_Allocator>::size_type __n,
_CharT __zero, _CharT __one)
{
if (__pos > __str.size())
__throw_out_of_range("bitset string pos out of range");
size_t __rlen = _VSTD::min(__n, __str.size() - __pos);
for (size_t __i = __pos; __i < __pos + __rlen; ++__i)
if (!_Traits::eq(__str[__i], __zero) && !_Traits::eq(__str[__i], __one))
__throw_invalid_argument("bitset string ctor has invalid argument");
size_t _Mp = _VSTD::min(__rlen, _Size);
size_t __i = 0;
for (; __i < _Mp; ++__i)
{
_CharT __c = __str[__pos + _Mp - 1 - __i];
if (_Traits::eq(__c, __zero))
(*this)[__i] = false;
else
(*this)[__i] = true;
}
_VSTD::fill(base::__make_iter(__i), base::__make_iter(_Size), false);
}
template <size_t _Size>
inline
bitset<_Size>&
bitset<_Size>::operator&=(const bitset& __rhs) _NOEXCEPT
{
base::operator&=(__rhs);
return *this;
}
template <size_t _Size>
inline
bitset<_Size>&
bitset<_Size>::operator|=(const bitset& __rhs) _NOEXCEPT
{
base::operator|=(__rhs);
return *this;
}
template <size_t _Size>
inline
bitset<_Size>&
bitset<_Size>::operator^=(const bitset& __rhs) _NOEXCEPT
{
base::operator^=(__rhs);
return *this;
}
template <size_t _Size>
bitset<_Size>&
bitset<_Size>::operator<<=(size_t __pos) _NOEXCEPT
{
__pos = _VSTD::min(__pos, _Size);
_VSTD::copy_backward(base::__make_iter(0), base::__make_iter(_Size - __pos), base::__make_iter(_Size));
_VSTD::fill_n(base::__make_iter(0), __pos, false);
return *this;
}
template <size_t _Size>
bitset<_Size>&
bitset<_Size>::operator>>=(size_t __pos) _NOEXCEPT
{
__pos = _VSTD::min(__pos, _Size);
_VSTD::copy(base::__make_iter(__pos), base::__make_iter(_Size), base::__make_iter(0));
_VSTD::fill_n(base::__make_iter(_Size - __pos), __pos, false);
return *this;
}
template <size_t _Size>
inline
bitset<_Size>&
bitset<_Size>::set() _NOEXCEPT
{
_VSTD::fill_n(base::__make_iter(0), _Size, true);
return *this;
}
template <size_t _Size>
bitset<_Size>&
bitset<_Size>::set(size_t __pos, bool __val)
{
if (__pos >= _Size)
__throw_out_of_range("bitset set argument out of range");
(*this)[__pos] = __val;
return *this;
}
template <size_t _Size>
inline
bitset<_Size>&
bitset<_Size>::reset() _NOEXCEPT
{
_VSTD::fill_n(base::__make_iter(0), _Size, false);
return *this;
}
template <size_t _Size>
bitset<_Size>&
bitset<_Size>::reset(size_t __pos)
{
if (__pos >= _Size)
__throw_out_of_range("bitset reset argument out of range");
(*this)[__pos] = false;
return *this;
}
template <size_t _Size>
inline
bitset<_Size>
bitset<_Size>::operator~() const _NOEXCEPT
{
bitset __x(*this);
__x.flip();
return __x;
}
template <size_t _Size>
inline
bitset<_Size>&
bitset<_Size>::flip() _NOEXCEPT
{
base::flip();
return *this;
}
template <size_t _Size>
bitset<_Size>&
bitset<_Size>::flip(size_t __pos)
{
if (__pos >= _Size)
__throw_out_of_range("bitset flip argument out of range");
reference r = base::__make_ref(__pos);
r = ~r;
return *this;
}
template <size_t _Size>
inline
unsigned long
bitset<_Size>::to_ulong() const
{
return base::to_ulong();
}
template <size_t _Size>
inline
unsigned long long
bitset<_Size>::to_ullong() const
{
return base::to_ullong();
}
template <size_t _Size>
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
bitset<_Size>::to_string(_CharT __zero, _CharT __one) const
{
basic_string<_CharT, _Traits, _Allocator> __r(_Size, __zero);
for (size_t __i = 0; __i < _Size; ++__i)
{
if ((*this)[__i])
__r[_Size - 1 - __i] = __one;
}
return __r;
}
template <size_t _Size>
template <class _CharT, class _Traits>
inline
basic_string<_CharT, _Traits, allocator<_CharT> >
bitset<_Size>::to_string(_CharT __zero, _CharT __one) const
{
return to_string<_CharT, _Traits, allocator<_CharT> >(__zero, __one);
}
template <size_t _Size>
template <class _CharT>
inline
basic_string<_CharT, char_traits<_CharT>, allocator<_CharT> >
bitset<_Size>::to_string(_CharT __zero, _CharT __one) const
{
return to_string<_CharT, char_traits<_CharT>, allocator<_CharT> >(__zero, __one);
}
template <size_t _Size>
inline
basic_string<char, char_traits<char>, allocator<char> >
bitset<_Size>::to_string(char __zero, char __one) const
{
return to_string<char, char_traits<char>, allocator<char> >(__zero, __one);
}
template <size_t _Size>
inline
size_t
bitset<_Size>::count() const _NOEXCEPT
{
return static_cast<size_t>(_VSTD::count(base::__make_iter(0), base::__make_iter(_Size), true));
}
template <size_t _Size>
inline
bool
bitset<_Size>::operator==(const bitset& __rhs) const _NOEXCEPT
{
return _VSTD::equal(base::__make_iter(0), base::__make_iter(_Size), __rhs.__make_iter(0));
}
template <size_t _Size>
inline
bool
bitset<_Size>::operator!=(const bitset& __rhs) const _NOEXCEPT
{
return !(*this == __rhs);
}
template <size_t _Size>
bool
bitset<_Size>::test(size_t __pos) const
{
if (__pos >= _Size)
__throw_out_of_range("bitset test argument out of range");
return (*this)[__pos];
}
template <size_t _Size>
inline
bool
bitset<_Size>::all() const _NOEXCEPT
{
return base::all();
}
template <size_t _Size>
inline
bool
bitset<_Size>::any() const _NOEXCEPT
{
return base::any();
}
template <size_t _Size>
inline
bitset<_Size>
bitset<_Size>::operator<<(size_t __pos) const _NOEXCEPT
{
bitset __r = *this;
__r <<= __pos;
return __r;
}
template <size_t _Size>
inline
bitset<_Size>
bitset<_Size>::operator>>(size_t __pos) const _NOEXCEPT
{
bitset __r = *this;
__r >>= __pos;
return __r;
}
template <size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bitset<_Size>
operator&(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT
{
bitset<_Size> __r = __x;
__r &= __y;
return __r;
}
template <size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bitset<_Size>
operator|(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT
{
bitset<_Size> __r = __x;
__r |= __y;
return __r;
}
template <size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bitset<_Size>
operator^(const bitset<_Size>& __x, const bitset<_Size>& __y) _NOEXCEPT
{
bitset<_Size> __r = __x;
__r ^= __y;
return __r;
}
template <size_t _Size>
struct _LIBCPP_TEMPLATE_VIS hash<bitset<_Size> >
: public unary_function<bitset<_Size>, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const bitset<_Size>& __bs) const _NOEXCEPT
{return __bs.__hash_code();}
};
template <class _CharT, class _Traits, size_t _Size>
basic_istream<_CharT, _Traits>&
operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x);
template <class _CharT, class _Traits, size_t _Size>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const bitset<_Size>& __x);
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_BITSET
Reference in new issue View Git Blame Copy Permalink