[SOLVED] How to achieve file copy in C ++? ?

露华月

I am going to make a virtual file management system (note that it is virtual). Now the file copy and cut functions will not be done. Copy is not a strcpy that calls the DOS function. All operations are simulated in memory instead of operation. Copy files to hard drive! Please master help! !! Thank you! !! !!

lklklk

Make a file memory map, then perform operation mapping, and store the results in the file.

superandy

Since you have virtual file management in memory, then of course you use malloc to allocate memory, memcpy.

xxmoto619

If the file is too large, you can use memory file mapping. Linux is not familiar and should also provide this function

KTPOPO

It can be byte-by-byte, word-by-word ... COPY, if you want BT points, you can also bit by bit. ^ _ ^

heiheizhu

Remember that there is an API for performing similar file operations on memory in Windows. It may be useful. You can check it out. It seems to be called
MemoryFile ()