Question

我制作了一个删除停用词的代码，然后在一个名为aisha的文本文件上折叠了一个案例

This is a new file I did it for mediu.
Its about Removing stopwords fRom the file
and apply casefolding to it
I Tried doing that many Times
and finally now I could do

这是代码

#include <iostream>
#include <string>
#include <fstream>
using namespace std;

void removeStopWords(ifstream file) {
   string myArray[200];

        for(int i = 0; i < 200; ++i)
        {
            file >> myArray[i];

            if (myArray[i] !="is" && myArray[i]!="the" && myArray[i]!="that"&& myArray[i]!="it"&& myArray[i]!="to"){
            cout<< myArray[i]<<"  ";
            }



        } 
};

void applyCaseFolding(ifstream file) {
    file >> std::noskipws;
         char myArray[200];

        for(int i = 0; i < 200; ++i)
        {
            file >> myArray[i];

            if (myArray[i]=='I')
            cout<<"i";
            if (myArray[i]=='A')
            cout<<"a";
            if (myArray[i]=='T')
            cout<<"t";
            if (myArray[i]=='R')
            cout<<"r";
            else 
            if (myArray[i]!='I' && myArray[i]!='T' && myArray[i]!='R'&& myArray[i]!='A')
            cout<<myArray[i];
            }
};

int main()
{


    ifstream file("aisha.txt");
    if(file.is_open())
    {
                      removeStopWords(file);
                      applyCaseFolding(file);


    }
    file.close();
system("PAUSE");
return 0;
}

但问题是，当我编译程序时，一个奇怪的代码出现在devc ++上我可能知道什么不对吗？

这是代码的一部分=（

// Iostreams base classes -*- C++ -*-

// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

//
// ISO C++ 14882: 27.4  Iostreams base classes
//

/** @file ios_base.h
 *  This is an internal header file, included by other library headers.
 *  You should not attempt to use it directly.
 */

#ifndef _IOS_BASE_H
#define _IOS_BASE_H 1

#pragma GCC system_header

#include <bits/atomicity.h>
#include <bits/localefwd.h>
#include <bits/locale_classes.h>

namespace std
{
  // The following definitions of bitmask types are enums, not ints,
  // as permitted (but not required) in the standard, in order to provide
  // better type safety in iostream calls.  A side effect is that
  // expressions involving them are no longer compile-time constants.
  enum _Ios_Fmtflags { _S_ios_fmtflags_end = 1L << 16 };

  inline _Ios_Fmtflags
  operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
  { return _Ios_Fmtflags(static_cast<int>(__a) & static_cast<int>(__b)); }

  inline _Ios_Fmtflags
  operator|(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
  { return _Ios_Fmtflags(static_cast<int>(__a) | static_cast<int>(__b)); }

  inline _Ios_Fmtflags
  operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
  { return _Ios_Fmtflags(static_cast<int>(__a) ^ static_cast<int>(__b)); }

  inline _Ios_Fmtflags
  operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
  { return __a = __a | __b; }

  inline _Ios_Fmtflags
  operator&=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
  { return __a = __a & __b; }

  inline _Ios_Fmtflags
  operator^=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
  { return __a = __a ^ __b; }

  inline _Ios_Fmtflags
  operator~(_Ios_Fmtflags __a)
  { return _Ios_Fmtflags(~static_cast<int>(__a)); }


  enum _Ios_Openmode { _S_ios_openmode_end = 1L << 16 };

  inline _Ios_Openmode
  operator&(_Ios_Openmode __a, _Ios_Openmode __b)
  { return _Ios_Openmode(static_cast<int>(__a) & static_cast<int>(__b)); }

  inline _Ios_Openmode
  operator|(_Ios_Openmode __a, _Ios_Openmode __b)
  { return _Ios_Openmode(static_cast<int>(__a) | static_cast<int>(__b)); }

  inline _Ios_Openmode
  operator^(_Ios_Openmode __a, _Ios_Openmode __b)
  { return _Ios_Openmode(static_cast<int>(__a) ^ static_cast<int>(__b)); }

  inline _Ios_Openmode
  operator|=(_Ios_Openmode& __a, _Ios_Openmode __b)
  { return __a = __a | __b; }

  inline _Ios_Openmode
  operator&=(_Ios_Openmode& __a, _Ios_Openmode __b)
  { return __a = __a & __b; }

  inline _Ios_Openmode
  operator^=(_Ios_Openmode& __a, _Ios_Openmode __b)
  { return __a = __a ^ __b; }

  inline _Ios_Openmode
  operator~(_Ios_Openmode __a)
  { return _Ios_Openmode(~static_cast<int>(__a)); }


  enum _Ios_Iostate { _S_ios_iostate_end = 1L << 16 };

  inline _Ios_Iostate
  operator&(_Ios_Iostate __a, _Ios_Iostate __b)
  { return _Ios_Iostate(static_cast<int>(__a) & static_cast<int>(__b)); }

  inline _Ios_Iostate
  operator|(_Ios_Iostate __a, _Ios_Iostate __b)
  { return _Ios_Iostate(static_cast<int>(__a) | static_cast<int>(__b)); }

  inline _Ios_Iostate
  operator^(_Ios_Iostate __a, _Ios_Iostate __b)
  { return _Ios_Iostate(static_cast<int>(__a) ^ static_cast<int>(__b)); }

  inline _Ios_Iostate
  operator|=(_Ios_Iostate& __a, _Ios_Iostate __b)
  { return __a = __a | __b; }

  inline _Ios_Iostate
  operator&=(_Ios_Iostate& __a, _Ios_Iostate __b)
  { return __a = __a & __b; }

  inline _Ios_Iostate
  operator^=(_Ios_Iostate& __a, _Ios_Iostate __b)
  { return __a = __a ^ __b; }

  inline _Ios_Iostate
  operator~(_Ios_Iostate __a)
  { return _Ios_Iostate(~static_cast<int>(__a)); }

  enum _Ios_Seekdir { _S_ios_seekdir_end = 1L << 16 };

  // 27.4.2  Class ios_base
  /**
   *  @brief  The very top of the I/O class hierarchy.
   *
   *  This class defines everything that can be defined about I/O that does
   *  not depend on the type of characters being input or output.  Most
   *  people will only see @c ios_base when they need to specify the full
   *  name of the various I/O flags (e.g., the openmodes).
  */
  class ios_base
  {
  public:

    // 27.4.2.1.1  Class ios_base::failure
    /// These are thrown to indicate problems.  Doc me.
    class failure : public exception
    {
    public:
      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 48.  Use of non-existent exception constructor
      explicit
      failure(const string& __str) throw();

      // This declaration is not useless:
      // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
      virtual
      ~failure() throw();

      virtual const char*
      what() const throw();

    private:
      string _M_msg;
    };

    // 27.4.2.1.2  Type ios_base::fmtflags
    /**

Answer 1

这就是问题所在： -

void removeStopWords(ifstream file)

...和

void applyCaseFolding(ifstream file)

您正在尝试将ifstream的副本传递给这些函数，并且ifstream类不可复制。改为传递参考。

void applyCaseFolding(ifstream &file)

您没有显示确切的错误消息，而是您已经粘贴了编译器告诉您已检测到错误的文件的整个代码。不幸的是，这些看似无关的文件中的奇怪错误消息是您必须学习与C ++程序员一起生活的事情之一。我希望它有所不同，但是......

编译删除停用词并应用大小写折叠的程序时会出现一个奇怪的代码

1 个答案: