You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1067 lines
26 KiB
C++
1067 lines
26 KiB
C++
// -*- C++ -*-
|
|
//===---------------------------- ios -------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP_IOS
|
|
#define _LIBCPP_IOS
|
|
|
|
/*
|
|
ios synopsis
|
|
|
|
#include <iosfwd>
|
|
|
|
namespace std
|
|
{
|
|
|
|
typedef OFF_T streamoff;
|
|
typedef SZ_T streamsize;
|
|
template <class stateT> class fpos;
|
|
|
|
class ios_base
|
|
{
|
|
public:
|
|
class failure;
|
|
|
|
typedef T1 fmtflags;
|
|
static constexpr fmtflags boolalpha;
|
|
static constexpr fmtflags dec;
|
|
static constexpr fmtflags fixed;
|
|
static constexpr fmtflags hex;
|
|
static constexpr fmtflags internal;
|
|
static constexpr fmtflags left;
|
|
static constexpr fmtflags oct;
|
|
static constexpr fmtflags right;
|
|
static constexpr fmtflags scientific;
|
|
static constexpr fmtflags showbase;
|
|
static constexpr fmtflags showpoint;
|
|
static constexpr fmtflags showpos;
|
|
static constexpr fmtflags skipws;
|
|
static constexpr fmtflags unitbuf;
|
|
static constexpr fmtflags uppercase;
|
|
static constexpr fmtflags adjustfield;
|
|
static constexpr fmtflags basefield;
|
|
static constexpr fmtflags floatfield;
|
|
|
|
typedef T2 iostate;
|
|
static constexpr iostate badbit;
|
|
static constexpr iostate eofbit;
|
|
static constexpr iostate failbit;
|
|
static constexpr iostate goodbit;
|
|
|
|
typedef T3 openmode;
|
|
static constexpr openmode app;
|
|
static constexpr openmode ate;
|
|
static constexpr openmode binary;
|
|
static constexpr openmode in;
|
|
static constexpr openmode out;
|
|
static constexpr openmode trunc;
|
|
|
|
typedef T4 seekdir;
|
|
static constexpr seekdir beg;
|
|
static constexpr seekdir cur;
|
|
static constexpr seekdir end;
|
|
|
|
class Init;
|
|
|
|
// 27.5.2.2 fmtflags state:
|
|
fmtflags flags() const;
|
|
fmtflags flags(fmtflags fmtfl);
|
|
fmtflags setf(fmtflags fmtfl);
|
|
fmtflags setf(fmtflags fmtfl, fmtflags mask);
|
|
void unsetf(fmtflags mask);
|
|
|
|
streamsize precision() const;
|
|
streamsize precision(streamsize prec);
|
|
streamsize width() const;
|
|
streamsize width(streamsize wide);
|
|
|
|
// 27.5.2.3 locales:
|
|
locale imbue(const locale& loc);
|
|
locale getloc() const;
|
|
|
|
// 27.5.2.5 storage:
|
|
static int xalloc();
|
|
long& iword(int index);
|
|
void*& pword(int index);
|
|
|
|
// destructor
|
|
virtual ~ios_base();
|
|
|
|
// 27.5.2.6 callbacks;
|
|
enum event { erase_event, imbue_event, copyfmt_event };
|
|
typedef void (*event_callback)(event, ios_base&, int index);
|
|
void register_callback(event_callback fn, int index);
|
|
|
|
ios_base(const ios_base&) = delete;
|
|
ios_base& operator=(const ios_base&) = delete;
|
|
|
|
static bool sync_with_stdio(bool sync = true);
|
|
|
|
protected:
|
|
ios_base();
|
|
};
|
|
|
|
template <class charT, class traits = char_traits<charT> >
|
|
class basic_ios
|
|
: public ios_base
|
|
{
|
|
public:
|
|
// types:
|
|
typedef charT char_type;
|
|
typedef typename traits::int_type int_type; // removed in C++17
|
|
typedef typename traits::pos_type pos_type; // removed in C++17
|
|
typedef typename traits::off_type off_type; // removed in C++17
|
|
typedef traits traits_type;
|
|
|
|
operator unspecified-bool-type() const;
|
|
bool operator!() const;
|
|
iostate rdstate() const;
|
|
void clear(iostate state = goodbit);
|
|
void setstate(iostate state);
|
|
bool good() const;
|
|
bool eof() const;
|
|
bool fail() const;
|
|
bool bad() const;
|
|
|
|
iostate exceptions() const;
|
|
void exceptions(iostate except);
|
|
|
|
// 27.5.4.1 Constructor/destructor:
|
|
explicit basic_ios(basic_streambuf<charT,traits>* sb);
|
|
virtual ~basic_ios();
|
|
|
|
// 27.5.4.2 Members:
|
|
basic_ostream<charT,traits>* tie() const;
|
|
basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr);
|
|
|
|
basic_streambuf<charT,traits>* rdbuf() const;
|
|
basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
|
|
|
|
basic_ios& copyfmt(const basic_ios& rhs);
|
|
|
|
char_type fill() const;
|
|
char_type fill(char_type ch);
|
|
|
|
locale imbue(const locale& loc);
|
|
|
|
char narrow(char_type c, char dfault) const;
|
|
char_type widen(char c) const;
|
|
|
|
basic_ios(const basic_ios& ) = delete;
|
|
basic_ios& operator=(const basic_ios&) = delete;
|
|
|
|
protected:
|
|
basic_ios();
|
|
void init(basic_streambuf<charT,traits>* sb);
|
|
void move(basic_ios& rhs);
|
|
void swap(basic_ios& rhs) noexcept;
|
|
void set_rdbuf(basic_streambuf<charT, traits>* sb);
|
|
};
|
|
|
|
// 27.5.5, manipulators:
|
|
ios_base& boolalpha (ios_base& str);
|
|
ios_base& noboolalpha(ios_base& str);
|
|
ios_base& showbase (ios_base& str);
|
|
ios_base& noshowbase (ios_base& str);
|
|
ios_base& showpoint (ios_base& str);
|
|
ios_base& noshowpoint(ios_base& str);
|
|
ios_base& showpos (ios_base& str);
|
|
ios_base& noshowpos (ios_base& str);
|
|
ios_base& skipws (ios_base& str);
|
|
ios_base& noskipws (ios_base& str);
|
|
ios_base& uppercase (ios_base& str);
|
|
ios_base& nouppercase(ios_base& str);
|
|
ios_base& unitbuf (ios_base& str);
|
|
ios_base& nounitbuf (ios_base& str);
|
|
|
|
// 27.5.5.2 adjustfield:
|
|
ios_base& internal (ios_base& str);
|
|
ios_base& left (ios_base& str);
|
|
ios_base& right (ios_base& str);
|
|
|
|
// 27.5.5.3 basefield:
|
|
ios_base& dec (ios_base& str);
|
|
ios_base& hex (ios_base& str);
|
|
ios_base& oct (ios_base& str);
|
|
|
|
// 27.5.5.4 floatfield:
|
|
ios_base& fixed (ios_base& str);
|
|
ios_base& scientific (ios_base& str);
|
|
ios_base& hexfloat (ios_base& str);
|
|
ios_base& defaultfloat(ios_base& str);
|
|
|
|
// 27.5.5.5 error reporting:
|
|
enum class io_errc
|
|
{
|
|
stream = 1
|
|
};
|
|
|
|
concept_map ErrorCodeEnum<io_errc> { };
|
|
error_code make_error_code(io_errc e) noexcept;
|
|
error_condition make_error_condition(io_errc e) noexcept;
|
|
storage-class-specifier const error_category& iostream_category() noexcept;
|
|
|
|
} // std
|
|
|
|
*/
|
|
|
|
#include <__config>
|
|
#include <iosfwd>
|
|
#include <__locale>
|
|
#include <system_error>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER)
|
|
#include <atomic> // for __xindex_
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
#pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
typedef ptrdiff_t streamsize;
|
|
|
|
class _LIBCPP_TYPE_VIS ios_base
|
|
{
|
|
public:
|
|
class _LIBCPP_EXCEPTION_ABI failure;
|
|
|
|
typedef unsigned int fmtflags;
|
|
static const fmtflags boolalpha = 0x0001;
|
|
static const fmtflags dec = 0x0002;
|
|
static const fmtflags fixed = 0x0004;
|
|
static const fmtflags hex = 0x0008;
|
|
static const fmtflags internal = 0x0010;
|
|
static const fmtflags left = 0x0020;
|
|
static const fmtflags oct = 0x0040;
|
|
static const fmtflags right = 0x0080;
|
|
static const fmtflags scientific = 0x0100;
|
|
static const fmtflags showbase = 0x0200;
|
|
static const fmtflags showpoint = 0x0400;
|
|
static const fmtflags showpos = 0x0800;
|
|
static const fmtflags skipws = 0x1000;
|
|
static const fmtflags unitbuf = 0x2000;
|
|
static const fmtflags uppercase = 0x4000;
|
|
static const fmtflags adjustfield = left | right | internal;
|
|
static const fmtflags basefield = dec | oct | hex;
|
|
static const fmtflags floatfield = scientific | fixed;
|
|
|
|
typedef unsigned int iostate;
|
|
static const iostate badbit = 0x1;
|
|
static const iostate eofbit = 0x2;
|
|
static const iostate failbit = 0x4;
|
|
static const iostate goodbit = 0x0;
|
|
|
|
typedef unsigned int openmode;
|
|
static const openmode app = 0x01;
|
|
static const openmode ate = 0x02;
|
|
static const openmode binary = 0x04;
|
|
static const openmode in = 0x08;
|
|
static const openmode out = 0x10;
|
|
static const openmode trunc = 0x20;
|
|
|
|
enum seekdir {beg, cur, end};
|
|
|
|
#if _LIBCPP_STD_VER <= 14
|
|
typedef iostate io_state;
|
|
typedef openmode open_mode;
|
|
typedef seekdir seek_dir;
|
|
|
|
typedef _VSTD::streamoff streamoff;
|
|
typedef _VSTD::streampos streampos;
|
|
#endif
|
|
|
|
class _LIBCPP_TYPE_VIS Init;
|
|
|
|
// 27.5.2.2 fmtflags state:
|
|
_LIBCPP_INLINE_VISIBILITY fmtflags flags() const;
|
|
_LIBCPP_INLINE_VISIBILITY fmtflags flags(fmtflags __fmtfl);
|
|
_LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl);
|
|
_LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl, fmtflags __mask);
|
|
_LIBCPP_INLINE_VISIBILITY void unsetf(fmtflags __mask);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY streamsize precision() const;
|
|
_LIBCPP_INLINE_VISIBILITY streamsize precision(streamsize __prec);
|
|
_LIBCPP_INLINE_VISIBILITY streamsize width() const;
|
|
_LIBCPP_INLINE_VISIBILITY streamsize width(streamsize __wide);
|
|
|
|
// 27.5.2.3 locales:
|
|
locale imbue(const locale& __loc);
|
|
locale getloc() const;
|
|
|
|
// 27.5.2.5 storage:
|
|
static int xalloc();
|
|
long& iword(int __index);
|
|
void*& pword(int __index);
|
|
|
|
// destructor
|
|
virtual ~ios_base();
|
|
|
|
// 27.5.2.6 callbacks;
|
|
enum event { erase_event, imbue_event, copyfmt_event };
|
|
typedef void (*event_callback)(event, ios_base&, int __index);
|
|
void register_callback(event_callback __fn, int __index);
|
|
|
|
private:
|
|
ios_base(const ios_base&); // = delete;
|
|
ios_base& operator=(const ios_base&); // = delete;
|
|
|
|
public:
|
|
static bool sync_with_stdio(bool __sync = true);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY iostate rdstate() const;
|
|
void clear(iostate __state = goodbit);
|
|
_LIBCPP_INLINE_VISIBILITY void setstate(iostate __state);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY bool good() const;
|
|
_LIBCPP_INLINE_VISIBILITY bool eof() const;
|
|
_LIBCPP_INLINE_VISIBILITY bool fail() const;
|
|
_LIBCPP_INLINE_VISIBILITY bool bad() const;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY iostate exceptions() const;
|
|
_LIBCPP_INLINE_VISIBILITY void exceptions(iostate __iostate);
|
|
|
|
void __set_badbit_and_consider_rethrow();
|
|
void __set_failbit_and_consider_rethrow();
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void __setstate_nothrow(iostate __state)
|
|
{
|
|
if (__rdbuf_)
|
|
__rdstate_ |= __state;
|
|
else
|
|
__rdstate_ |= __state | ios_base::badbit;
|
|
}
|
|
|
|
protected:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
ios_base() {// purposefully does no initialization
|
|
}
|
|
|
|
void init(void* __sb);
|
|
_LIBCPP_INLINE_VISIBILITY void* rdbuf() const {return __rdbuf_;}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void rdbuf(void* __sb)
|
|
{
|
|
__rdbuf_ = __sb;
|
|
clear();
|
|
}
|
|
|
|
void __call_callbacks(event);
|
|
void copyfmt(const ios_base&);
|
|
void move(ios_base&);
|
|
void swap(ios_base&) _NOEXCEPT;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void set_rdbuf(void* __sb)
|
|
{
|
|
__rdbuf_ = __sb;
|
|
}
|
|
|
|
private:
|
|
// All data members must be scalars
|
|
fmtflags __fmtflags_;
|
|
streamsize __precision_;
|
|
streamsize __width_;
|
|
iostate __rdstate_;
|
|
iostate __exceptions_;
|
|
void* __rdbuf_;
|
|
void* __loc_;
|
|
event_callback* __fn_;
|
|
int* __index_;
|
|
size_t __event_size_;
|
|
size_t __event_cap_;
|
|
// TODO(EricWF): Enable this for both Clang and GCC. Currently it is only
|
|
// enabled with clang.
|
|
#if defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_NO_THREADS)
|
|
static atomic<int> __xindex_;
|
|
#else
|
|
static int __xindex_;
|
|
#endif
|
|
long* __iarray_;
|
|
size_t __iarray_size_;
|
|
size_t __iarray_cap_;
|
|
void** __parray_;
|
|
size_t __parray_size_;
|
|
size_t __parray_cap_;
|
|
};
|
|
|
|
//enum class io_errc
|
|
_LIBCPP_DECLARE_STRONG_ENUM(io_errc)
|
|
{
|
|
stream = 1
|
|
};
|
|
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc)
|
|
|
|
template <>
|
|
struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc> : public true_type { };
|
|
|
|
#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
|
|
template <>
|
|
struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc::__lx> : public true_type { };
|
|
#endif
|
|
|
|
_LIBCPP_FUNC_VIS
|
|
const error_category& iostream_category() _NOEXCEPT;
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
error_code
|
|
make_error_code(io_errc __e) _NOEXCEPT
|
|
{
|
|
return error_code(static_cast<int>(__e), iostream_category());
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
error_condition
|
|
make_error_condition(io_errc __e) _NOEXCEPT
|
|
{
|
|
return error_condition(static_cast<int>(__e), iostream_category());
|
|
}
|
|
|
|
class _LIBCPP_EXCEPTION_ABI ios_base::failure
|
|
: public system_error
|
|
{
|
|
public:
|
|
explicit failure(const string& __msg, const error_code& __ec = io_errc::stream);
|
|
explicit failure(const char* __msg, const error_code& __ec = io_errc::stream);
|
|
virtual ~failure() throw();
|
|
};
|
|
|
|
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
|
|
void __throw_failure(char const* __msg) {
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
throw ios_base::failure(__msg);
|
|
#else
|
|
((void)__msg);
|
|
_VSTD::abort();
|
|
#endif
|
|
}
|
|
|
|
class _LIBCPP_TYPE_VIS ios_base::Init
|
|
{
|
|
public:
|
|
Init();
|
|
~Init();
|
|
};
|
|
|
|
// fmtflags
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base::fmtflags
|
|
ios_base::flags() const
|
|
{
|
|
return __fmtflags_;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base::fmtflags
|
|
ios_base::flags(fmtflags __fmtfl)
|
|
{
|
|
fmtflags __r = __fmtflags_;
|
|
__fmtflags_ = __fmtfl;
|
|
return __r;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base::fmtflags
|
|
ios_base::setf(fmtflags __fmtfl)
|
|
{
|
|
fmtflags __r = __fmtflags_;
|
|
__fmtflags_ |= __fmtfl;
|
|
return __r;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
ios_base::unsetf(fmtflags __mask)
|
|
{
|
|
__fmtflags_ &= ~__mask;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base::fmtflags
|
|
ios_base::setf(fmtflags __fmtfl, fmtflags __mask)
|
|
{
|
|
fmtflags __r = __fmtflags_;
|
|
unsetf(__mask);
|
|
__fmtflags_ |= __fmtfl & __mask;
|
|
return __r;
|
|
}
|
|
|
|
// precision
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
streamsize
|
|
ios_base::precision() const
|
|
{
|
|
return __precision_;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
streamsize
|
|
ios_base::precision(streamsize __prec)
|
|
{
|
|
streamsize __r = __precision_;
|
|
__precision_ = __prec;
|
|
return __r;
|
|
}
|
|
|
|
// width
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
streamsize
|
|
ios_base::width() const
|
|
{
|
|
return __width_;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
streamsize
|
|
ios_base::width(streamsize __wide)
|
|
{
|
|
streamsize __r = __width_;
|
|
__width_ = __wide;
|
|
return __r;
|
|
}
|
|
|
|
// iostate
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base::iostate
|
|
ios_base::rdstate() const
|
|
{
|
|
return __rdstate_;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
ios_base::setstate(iostate __state)
|
|
{
|
|
clear(__rdstate_ | __state);
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
ios_base::good() const
|
|
{
|
|
return __rdstate_ == 0;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
ios_base::eof() const
|
|
{
|
|
return (__rdstate_ & eofbit) != 0;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
ios_base::fail() const
|
|
{
|
|
return (__rdstate_ & (failbit | badbit)) != 0;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
ios_base::bad() const
|
|
{
|
|
return (__rdstate_ & badbit) != 0;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base::iostate
|
|
ios_base::exceptions() const
|
|
{
|
|
return __exceptions_;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
ios_base::exceptions(iostate __iostate)
|
|
{
|
|
__exceptions_ = __iostate;
|
|
clear(__rdstate_);
|
|
}
|
|
|
|
#if defined(_LIBCPP_CXX03_LANG)
|
|
struct _LIBCPP_TYPE_VIS __cxx03_bool {
|
|
typedef void (__cxx03_bool::*__bool_type)();
|
|
void __true_value() {}
|
|
};
|
|
#endif
|
|
|
|
template <class _CharT, class _Traits>
|
|
class _LIBCPP_TEMPLATE_VIS basic_ios
|
|
: public ios_base
|
|
{
|
|
public:
|
|
// types:
|
|
typedef _CharT char_type;
|
|
typedef _Traits traits_type;
|
|
|
|
typedef typename traits_type::int_type int_type;
|
|
typedef typename traits_type::pos_type pos_type;
|
|
typedef typename traits_type::off_type off_type;
|
|
|
|
static_assert((is_same<_CharT, typename traits_type::char_type>::value),
|
|
"traits_type::char_type must be the same type as CharT");
|
|
|
|
// __true_value will generate undefined references when linking unless
|
|
// we give it internal linkage.
|
|
|
|
#if defined(_LIBCPP_CXX03_LANG)
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
operator __cxx03_bool::__bool_type() const {
|
|
return !fail() ? &__cxx03_bool::__true_value : nullptr;
|
|
}
|
|
#else
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
_LIBCPP_EXPLICIT operator bool() const {return !fail();}
|
|
#endif
|
|
|
|
_LIBCPP_INLINE_VISIBILITY bool operator!() const {return fail();}
|
|
_LIBCPP_INLINE_VISIBILITY iostate rdstate() const {return ios_base::rdstate();}
|
|
_LIBCPP_INLINE_VISIBILITY void clear(iostate __state = goodbit) {ios_base::clear(__state);}
|
|
_LIBCPP_INLINE_VISIBILITY void setstate(iostate __state) {ios_base::setstate(__state);}
|
|
_LIBCPP_INLINE_VISIBILITY bool good() const {return ios_base::good();}
|
|
_LIBCPP_INLINE_VISIBILITY bool eof() const {return ios_base::eof();}
|
|
_LIBCPP_INLINE_VISIBILITY bool fail() const {return ios_base::fail();}
|
|
_LIBCPP_INLINE_VISIBILITY bool bad() const {return ios_base::bad();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY iostate exceptions() const {return ios_base::exceptions();}
|
|
_LIBCPP_INLINE_VISIBILITY void exceptions(iostate __iostate) {ios_base::exceptions(__iostate);}
|
|
|
|
// 27.5.4.1 Constructor/destructor:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb);
|
|
virtual ~basic_ios();
|
|
|
|
// 27.5.4.2 Members:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<char_type, traits_type>* tie() const;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
basic_streambuf<char_type, traits_type>* rdbuf() const;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
|
|
|
|
basic_ios& copyfmt(const basic_ios& __rhs);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
char_type fill() const;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
char_type fill(char_type __ch);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
locale imbue(const locale& __loc);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
char narrow(char_type __c, char __dfault) const;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
char_type widen(char __c) const;
|
|
|
|
protected:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
basic_ios() {// purposefully does no initialization
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void init(basic_streambuf<char_type, traits_type>* __sb);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void move(basic_ios& __rhs);
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void move(basic_ios&& __rhs) {move(__rhs);}
|
|
#endif
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void swap(basic_ios& __rhs) _NOEXCEPT;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
|
|
private:
|
|
basic_ostream<char_type, traits_type>* __tie_;
|
|
mutable int_type __fill_;
|
|
};
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb)
|
|
{
|
|
init(__sb);
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
basic_ios<_CharT, _Traits>::~basic_ios()
|
|
{
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb)
|
|
{
|
|
ios_base::init(__sb);
|
|
__tie_ = 0;
|
|
__fill_ = traits_type::eof();
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<_CharT, _Traits>*
|
|
basic_ios<_CharT, _Traits>::tie() const
|
|
{
|
|
return __tie_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_ostream<_CharT, _Traits>*
|
|
basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr)
|
|
{
|
|
basic_ostream<char_type, traits_type>* __r = __tie_;
|
|
__tie_ = __tiestr;
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_streambuf<_CharT, _Traits>*
|
|
basic_ios<_CharT, _Traits>::rdbuf() const
|
|
{
|
|
return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
basic_streambuf<_CharT, _Traits>*
|
|
basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb)
|
|
{
|
|
basic_streambuf<char_type, traits_type>* __r = rdbuf();
|
|
ios_base::rdbuf(__sb);
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
locale
|
|
basic_ios<_CharT, _Traits>::imbue(const locale& __loc)
|
|
{
|
|
locale __r = getloc();
|
|
ios_base::imbue(__loc);
|
|
if (rdbuf())
|
|
rdbuf()->pubimbue(__loc);
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
char
|
|
basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const
|
|
{
|
|
return use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_CharT
|
|
basic_ios<_CharT, _Traits>::widen(char __c) const
|
|
{
|
|
return use_facet<ctype<char_type> >(getloc()).widen(__c);
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_CharT
|
|
basic_ios<_CharT, _Traits>::fill() const
|
|
{
|
|
if (traits_type::eq_int_type(traits_type::eof(), __fill_))
|
|
__fill_ = widen(' ');
|
|
return __fill_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
_CharT
|
|
basic_ios<_CharT, _Traits>::fill(char_type __ch)
|
|
{
|
|
char_type __r = __fill_;
|
|
__fill_ = __ch;
|
|
return __r;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
basic_ios<_CharT, _Traits>&
|
|
basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs)
|
|
{
|
|
if (this != &__rhs)
|
|
{
|
|
__call_callbacks(erase_event);
|
|
ios_base::copyfmt(__rhs);
|
|
__tie_ = __rhs.__tie_;
|
|
__fill_ = __rhs.__fill_;
|
|
__call_callbacks(copyfmt_event);
|
|
exceptions(__rhs.exceptions());
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
basic_ios<_CharT, _Traits>::move(basic_ios& __rhs)
|
|
{
|
|
ios_base::move(__rhs);
|
|
__tie_ = __rhs.__tie_;
|
|
__rhs.__tie_ = 0;
|
|
__fill_ = __rhs.__fill_;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT
|
|
{
|
|
ios_base::swap(__rhs);
|
|
_VSTD::swap(__tie_, __rhs.__tie_);
|
|
_VSTD::swap(__fill_, __rhs.__fill_);
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb)
|
|
{
|
|
ios_base::set_rdbuf(__sb);
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
boolalpha(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::boolalpha);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
noboolalpha(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::boolalpha);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
showbase(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::showbase);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
noshowbase(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::showbase);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
showpoint(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::showpoint);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
noshowpoint(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::showpoint);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
showpos(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::showpos);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
noshowpos(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::showpos);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
skipws(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::skipws);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
noskipws(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::skipws);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
uppercase(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::uppercase);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
nouppercase(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::uppercase);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
unitbuf(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::unitbuf);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
nounitbuf(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::unitbuf);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
internal(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::internal, ios_base::adjustfield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
left(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::left, ios_base::adjustfield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
right(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::right, ios_base::adjustfield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
dec(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::dec, ios_base::basefield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
hex(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::hex, ios_base::basefield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
oct(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::oct, ios_base::basefield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
fixed(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::fixed, ios_base::floatfield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
scientific(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::scientific, ios_base::floatfield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
hexfloat(ios_base& __str)
|
|
{
|
|
__str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
|
|
return __str;
|
|
}
|
|
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
ios_base&
|
|
defaultfloat(ios_base& __str)
|
|
{
|
|
__str.unsetf(ios_base::floatfield);
|
|
return __str;
|
|
}
|
|
|
|
template <class _CharT, class _Traits>
|
|
class __save_flags
|
|
{
|
|
typedef basic_ios<_CharT, _Traits> __stream_type;
|
|
typedef typename __stream_type::fmtflags fmtflags;
|
|
|
|
__stream_type& __stream_;
|
|
fmtflags __fmtflags_;
|
|
_CharT __fill_;
|
|
|
|
__save_flags(const __save_flags&);
|
|
__save_flags& operator=(const __save_flags&);
|
|
public:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit __save_flags(__stream_type& __stream)
|
|
: __stream_(__stream),
|
|
__fmtflags_(__stream.flags()),
|
|
__fill_(__stream.fill())
|
|
{}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
~__save_flags()
|
|
{
|
|
__stream_.flags(__fmtflags_);
|
|
__stream_.fill(__fill_);
|
|
}
|
|
};
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP_IOS
|