error in C++, what to do ?: could not find an match for ostream::write(long *, unsigned int)
- by Shantanu Gupta
I am trying to write data stored in a binary file using turbo C++. But it shows me an error
could not find an match for ostream::write(long *, unsigned int)
I want to write a 4 byte long data into that file. When i tries to write data using char pointer. It runs successfully. But i want to store large value i.e. eg. 2454545454
Which can be stored in long only.
I dont know how to convert 1 byte into bit. I have 1 byte of data as a character.
Moreover what i m trying to do is to convert 4 chars into long and store data into it. And at the other side i want to reverse this so as to retrieve how many bytes of data i have written.
long *lmem;
lmem=new long;
*lmem=Tsize;
fo.write(lmem,sizeof(long));// error occurs here
delete lmem;
I am implementing steganography and i have successfully stored txt file into image but trying to retrieve that file data now.