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C++ Program for copying files

Posted on 2003-11-30
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Last Modified: 2010-04-17
I have an exam  and need a simple progam to copy from one file to another in c++ program
I also have to open and close the file
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Question by:Roxanne_Hayling
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by:cookre
ID: 9847070
Sorry, we can't do homework, but if you can post a first stab at the code, we can help out..
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by:cookre
ID: 9847092
Just like you have to open a book to read or write in it, and you close it when you're done, you do the same thing with files.

To push the metaphor even further, if you're hand copying a book, you might copy one line at a time.

Have you tried surfing for sample code?
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by:cookre
ID: 9847127
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by:abhinaysinha
ID: 9852228
The process is to open the file in binary mode, read it an write it the target. I guess I shouldn't send you the code
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death_befo_dishonor earned 125 total points
ID: 9854992
i wont send u the source code but here is a tip that might be useful:

open the source file*
open the destination file*

read 1 byte from the source file
write it to the destination file

when there r no bytes left in the source file then close both files... and u done :)

*these must be opened by the binary reader/writer

this method of reading 1 byte at a time is BY FAR the fastest and best way to go about it... it's fast because your program does not need any extra memory except 1 byte

hope this helps... suma
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by:cookre
ID: 9855113
Uh, folks, I seriously doubt that this elementary assignment has anything to do with binary files.
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by:abhinaysinha
ID: 9856055
Its true that it does not directly deal with binary files, but opening the file in a binary mode will give a more generalised approach
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by:void_main
ID: 9856640
One byte at once is easy to implement but it is slooooow. If you read blocks (I use 1024 bytes) the transfer rate will fly up into the sky!!!
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Expert Comment

by:nakhab
ID: 9895403
You can also use "Scripting.FileSystemObject" object for copying file.
FileSystemObject  can be used for all file operations. no need of binary file copy.

find out if you can use this object  in C++. Check for any such libraries

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by:void_main
ID: 10319744
death_befo_dishonor should earn the points
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