Thread: Copy data from CPU Buffer to PC hard disk

Hi

I saved data ( with specific size and address) in main memory of PC (i.e CPU memory)... How can I copy it in the PC hard dick such as D drive using C programming?

Thanks
Hussam

Open the file with fopen. Write the data to file using fwrite. Close the file with fclose. Be sure to check your return values. Make sense?

"hard dick" hahahaah

Anyway, that sounds pretty easy

Code:

FILE f = fopen("mydata.bin","wb");
char *ptr;
ptr = 0x12345678; // some address in memory
fwrite(ptr, sizeofthatdatahere, 1, f);
fclose(f);
ptr = NULL;

Originally Posted by Epy

"hard dick" hahahaah

Anyway, that sounds pretty easy

Code:

FILE f = fopen("mydata.bin","wb");
char *ptr;
ptr = 0x12345678; // some address in memory
fwrite(ptr, sizeofthatdatahere, 1, f);
fclose(f);
ptr = NULL;

1) The result of fopen should be checked.
2) A conversion from integer to pointer should be explicitly casted.
3) The result of fwrite should be checked.
4) Calling fclose on a NULL pointer will likely crash.

Yes, this was just a quick example, I was just outlining the process. I would regularly check to see if fopen returns NULL or if the fwrite failed. Points 1 and 4 are basically the same.