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Thread: I/o

  1. #1
    Join Date
    Jul 2005
    Posts
    52

    Question I/o

    i am trying to get parameters from function ,i want to write that parameters to the file.

    let file name be ,say "logfile"

    parameters are of type wchar_t
    i am using
    ofstream("filename",ios::app) for appending the data.

    now how should i write the parameters to the file logfile?
    i m trying to use one function which will get one parameters at a time and write that to file logfile.

    but how should i write the parameters to the file?
    can anyone explain with some code?

  2. #2
    Join Date
    Apr 2005
    Location
    Mumbai,India
    Posts
    185

    Re: I/o

    Quoted by swapnil Jul 2005, Posts: 1
    but how should i write the parameters to the file?
    I am trying to guess your problem. Suppose u have two parameters say Param1 and Param2.You can write in following way
    Code:
       outfile<<"PARAM1"<<"\t"<<Param1<<endl;
          outfile<<"PARAM2"<<"\t"<<Param2<<endl; 
         //supposing ofstream outfile(.....)
       Output will be
       PARAM1  value
       PARAM2  value
    To read them back, you may do
    Code:
         infile>>str;  
             if(str=="PARAM1")  infile>>Param1;
             else if(str=="PARAM2") infile>>Param2;
            ///supposing ifstream infile(...)
    but how should i write the parameters to the file?
    Just writing their value in file. If reading and writing order is always same, doesn't need any extra information, otherwise also add some information with value so that we can read it later ( As I try to show above).
    Last edited by upashu2; July 4th, 2005 at 07:03 AM.

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