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Write to file

 
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Write to file
realNoName
post 1 Sep, 2007 - 11:26 AM
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what i am trying to do is jump to part of the file and overwrite it (only that part) but am having trouble getting it to only write to that part

I know what i am trying to overwrite is 125 bytes from the end of the file and i know how to jump there its just the over writing that i cant get

Here is what i got but again dont know how to do this
CODE
int main()
{
    char title[30];
    ofstream file("c:\\test.dat",ios::binary);

    cout << "Enter title:";
    cin.getline(title,30);

    file.seekp(-125,ios::end);
    file.write(title,30);

    file.close();
    
    return 0;
}
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musya
post 1 Sep, 2007 - 09:13 PM
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QUOTE(realNoName @ 1 Sep, 2007 - 12:26 PM) *

what i am trying to do is jump to part of the file and overwrite it (only that part) but am having trouble getting it to only write to that part

I know what i am trying to overwrite is 125 bytes from the end of the file and i know how to jump there its just the over writing that i cant get

Here is what i got but again dont know how to do this
CODE
int main()
{
    char title[30];
    ofstream file("c:\\test.dat",ios::binary);

    cout << "Enter title:";
    cin.getline(title,30);

    file.seekp(-125,ios::end);
    file.write(title,30);

    file.close();
    
    return 0;
}



write() should just over wright anything that you have, try doing just a .txt file first so that you can view your file easier, to know if you have overwritten anything.
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