Fundamentals of Computer Programming and IT by Pearson

Files 521

20.10.2. Reading and Writing Class Objects

The functions read() and write() perform write and read operations in binary format that is exactly

same as internal representation of data in the computer. Due to these capabilities of the functions, large data

can be stored in small amount of memory. Both these functions are also used to write and read class objects

to and from file. During read and write operation only data members are written to the file and the member

functions are ignored. Consider the following program.

# include <string.h>

int main()

{

clrscr();

int num[]={100,105,110,120,155,250,255};

ofstream out;

out.open(“01.bin”); ...