C++ (Cpp) __sentry示例

示例#1

文件： _istream.c 项目： RenEvo/dead6

basic_istream<_CharT, _Traits>& 
basic_istream<_CharT, _Traits>::get(_CharT& __c) {
  sentry __sentry(*this, _No_Skip_WS());
  this->_M_gcount = 0;

  if (__sentry) {
    typename _Traits::int_type __tmp = _Traits::eof();
    _STLP_TRY {
      __tmp = this->rdbuf()->sbumpc();
    }
    _STLP_CATCH_ALL {
      this->_M_handle_exception(ios_base::badbit);
    }

    if (!this->_S_eof(__tmp)) {
      this->_M_gcount = 1;
      __c = _Traits::to_char_type(__tmp);
    }
  }

  if (this->_M_gcount == 0)
    this->setstate(ios_base::eofbit | ios_base::failbit);

  return *this;
}

示例#2

文件： _istream.c 项目： Jay-Jay-OPL/ps2sdk-ports

basic_istream<_CharT, _Traits>& _STLP_CALL
ws(basic_istream<_CharT, _Traits>& __is)
{
  typedef typename basic_istream<_CharT, _Traits>::sentry      _Sentry;
  _Sentry __sentry(__is, _No_Skip_WS()); // Don't skip whitespace.
  if (__sentry)
    __is._M_skip_whitespace(false);
  return __is;
}

示例#3

文件： _ostream.c 项目： Adi0927/alecmercer-origins

basic_ostream<_CharT, _Traits>&
basic_ostream<_CharT, _Traits>::operator<<(basic_streambuf<_CharT, _Traits>* __from) {
  sentry __sentry(*this);
  if (__sentry) {
    if (__from) {
      bool __any_inserted = __from->gptr() != __from->egptr()
        ? this->_M_copy_buffered(__from, this->rdbuf())
        : this->_M_copy_unbuffered(__from, this->rdbuf());
      if (!__any_inserted)
        this->setstate(ios_base::failbit);
    }
    else
      this->setstate(ios_base::badbit);
  }

  return *this;
}

示例#4

文件： _istream.c 项目： RenEvo/dead6

ios_base::iostate _STLP_CALL 
_M_get_num(basic_istream<_CharT, _Traits>& __that, _Number& __val) {
  typedef typename basic_istream<_CharT, _Traits>::sentry _Sentry;
  ios_base::iostate __err = 0;
  _Sentry __sentry( __that );     // Skip whitespace.
  if (__sentry) {
    typedef num_get<_CharT, istreambuf_iterator<_CharT, _Traits> > _Num_get;
    _STLP_TRY {
      ((const _Num_get&)use_facet<_Num_get>(__that.getloc())).get(istreambuf_iterator<_CharT, _Traits>(__that.rdbuf()),
                                                                  0, __that, __err, __val);
    }
    _STLP_CATCH_ALL {
      __that._M_handle_exception(ios_base::badbit);
    }
    if (__err) __that.setstate(__err);
  }
  return __err;
}

示例#5

文件： _istream.c 项目： RenEvo/dead6

__BIS_int_type__
basic_istream<_CharT, _Traits>::peek() {
  typename _Traits::int_type __tmp = _Traits::eof();

  this->_M_gcount = 0;
  sentry __sentry(*this, _No_Skip_WS());

  if (__sentry) {
    _STLP_TRY {
      __tmp = this->rdbuf()->sgetc();
    }
    _STLP_CATCH_ALL {
      this->_M_handle_exception(ios_base::badbit);
    }
    if (this->_S_eof(__tmp))
      this->setstate(ios_base::eofbit);
  }

  return __tmp;
}

示例#6

文件： _istream.c 项目： 0-T-0/linux-sgx

ios_base::iostate _STLP_CALL
__get_num(basic_istream<_CharT, _Traits>& __that, _Number& __val) {
  typedef typename basic_istream<_CharT, _Traits>::sentry _Sentry;
  ios_base::iostate __err = 0;
  _Sentry __sentry( __that );     // Skip whitespace.
  if (__sentry) {
    typedef num_get<_CharT, istreambuf_iterator<_CharT, _Traits> > _Num_get;
    _STLP_TRY {
      // Do not remove additional parenthesis around use_facet instanciation, some compilers (VC6)
      // require it when building the library.
      (use_facet<_Num_get>(__that.getloc())).get(istreambuf_iterator<_CharT, _Traits>(__that.rdbuf()),
                                               0, __that, __err, __val);
    }
    _STLP_CATCH_ALL {
      __that._M_handle_exception(ios_base::badbit);
    }
    if (__err) __that.setstate(__err);
  }
  return __err;
}

示例#7

文件： _istream.c 项目： RenEvo/dead6

basic_istream<_CharT, _Traits>& 
basic_istream<_CharT, _Traits>::putback(_CharT __c) {
  this->_M_gcount = 0;
  sentry __sentry(*this, _No_Skip_WS());

  if (__sentry) {
    typename _Traits::int_type __tmp = _Traits::eof();
    basic_streambuf<_CharT, _Traits>* __buf = this->rdbuf();
//    if (!__buf || this->_S_eof(__buf->sputbackc(__c)))
    if (__buf) {
      _STLP_TRY {
        __tmp = __buf->sputbackc(__c);
      }
      _STLP_CATCH_ALL {
        this->_M_handle_exception(ios_base::badbit);
      }
    }
    if (this->_S_eof(__tmp))
      this->setstate(ios_base::badbit);
  }
  else
    this->setstate(ios_base::failbit);

示例#8

文件： _istream.c 项目： RenEvo/dead6

basic_istream<_CharT, _Traits>& basic_istream<_CharT, _Traits>::ignore() {
  sentry __sentry(*this, _No_Skip_WS());
  this->_M_gcount = 0;

  if (__sentry) {
    int_type __c;
    _STLP_TRY {
      __c = this->rdbuf()->sbumpc();
    }
    _STLP_CATCH_ALL {
      this->_M_handle_exception(ios_base::badbit);
      return *this;
    }

    if (!this->_S_eof(__c))
      this->_M_gcount = 1;
    else
      this->setstate(ios_base::eofbit);
  }

  return *this;
}