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Unfamiliar debugger problems

This is a discussion on Unfamiliar debugger problems within the C++ Programming forums, part of the General Programming Boards category; I'm still a bit rusty on programming, and I have never seen these debugger complaints before. GNU GCC in Code::Blocks ...

  1. #1
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    Dec 2008
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    Unfamiliar debugger problems

    I'm still a bit rusty on programming, and I have never seen these debugger complaints before.

    GNU GCC in Code::Blocks

    Source code:

    Code:
    
    #include <iostream>
    #include <fstream>
    using namespace std;
    
    int main()
    {
        int cc=0;
        int accumilator=0;
        int counter=0;
        int lngb=0;
        int count=0;
        string IN;
    
    
        /* IN now needs to be converted to a C style string so that it can be manipulated
        easier and compared to what is read from the file.
        */
    
        int lng= IN.length();
        char in [lng];
        do
        {
    
            in[lngb]=IN[lngb];
    lngb++;
        }
        while (cc<lngb);
        // Time to find out what word we're looking for:
    
        cout<<"Enter word to search file for.\n\n";
        cin>>IN;
    
        //Get the text data from the file.
    
        ofstream file_read ("A.txt");
        int F_Read_Length=file_read.length();
        char cstring [F_Read_Length];
    
        //Remember your safe coding practices.
    
        if (file_read.is_open())
    
        {
            do
            {
    
                //Convert the data from file to c style string:
    
                cstring[counter] = file_read[counter];
                counter++;
            }
            while (counter<F_Read_Length);
        }
    
        else
        {
            //oops
            cout<<"Program fail on primary file read. File could not be opened. Quitting. \n\n";
            return 0;
    
        }
    
        //Time to compare:
        do
        {
                /* If what came out of the file equals what was entered,
                accumilator in incremented by one for each character.*/
              if (in[count]==cstring[count])
        {
    
        accumilator++;
    
        }
    
        else {
        // Otherwise, we lose one.
        accumilator --;
    
        }
        count++;
        }
        while(count<lngb);
        if (accumilator==lng){
    
        cout<<"Perfect match.\n\n";
    
        }
    
        else {
    
        cout<<"Match not found.\n\n";
    
        }
    
    return 0;
    }
    The errors that the debugger are throwing are :

    error: 'struct std:fstream' has no member named length

    and

    error: no match for 'operator[]' in 'file_read[counter]'

  2. #2
    Registered User manasij7479's Avatar
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    Kolkata@India
    Posts
    2,490
    Those are compiler errors, not from the debugger.
    Read up on file I/O: Input/Output with files - C++ Documentation
    You'll find that you can't find the length of a stream and randomly access something within a stream (generally ).
    rags_to_riches likes this.
    Manasij Mukherjee | gcc-4.8.2 @Arch Linux
    Slow and Steady wins the race... if and only if :
    1.None of the other participants are fast and steady.
    2.The fast and unsteady suddenly falls asleep while running !



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