C + + binary file read and write

Requirements:

• To create and open a binary file with the FStream class
• Deposit Int,double 5 Basic data types in a file
• Custom classes and store a class object in the file
• Read all basic data types from a file
• Reading the 3rd basic type data from a file
• Reads the class object from the file and uses the

1#include <iomanip>2#include <fstream>3#include <iostream>4#include <cstring>5 using namespacestd;6 classTime {7  Public:8     intYear ;9     intmonth;Ten     voidDisplay () One     { Acout<<year<<" "<<month; -     } - }; the intMain () - { -     //Create and open a file with FStream -FStream OutFile ("Binaryy.dat"Ios:: out| Ios::inch|ios::binary); +     //write basic data type -     intAfloatbDoubleCCharDBOOLe; +A=1; b=1.34; C=1.3415826; D='P'; E=0; AOutfile.write ((Char*) &a,sizeof(a)); atOutfile.write ((Char*) &b,sizeof(b)); -Outfile.write ((Char*) &c,sizeof(c)); -Outfile.write ((Char*) &d,sizeof(d)); -Outfile.write ((Char*) &e,sizeof(e)); -     //Write Class object - Time t; inCin>>t.year>>T.month; -Outfile.write ((Char*) &t,sizeof(t)); to outfile.close (); +FStream InFile ("Binaryy.dat"Ios::inch|ios::binary); -     if(!inFile) the     { *cout <<"Error"<<Endl; $         return 0;Panax Notoginseng     } -     //int a;float b;double C;char d;bool e; the     //Read all basic types +Infile.read ((Char*) &a,sizeof(a)); A         //cout<<a<<endl; theInfile.read ((Char*) &b,sizeof(b)); +         //cout<<b<<endl; -Infile.read ((Char*) &c,sizeof(c)); $         //cout<<c<<endl; $Infile.read ((Char*) &d,sizeof(d)); -         //cout<<d<<endl; -Infile.read ((Char*) &e,sizeof(e)); the         //cout<<e<<endl; -cout<<a<<" "<<b<<" "<<c<<" "<<d<<" "<<e<<Endl;Wuyi     //Read Class object theInfile.read ((Char*) &t,sizeof(t)); -cout << t.year <<" "<< T.month <<Endl; Wu     //read the third basic type -     Doubletmp; AboutINFILE.SEEKG (sizeof(int)+sizeof(float), Ios::beg); $     //While (Infile.get (TMP)) cout<<tmp; -Infile.read ((Char*) &tmp,sizeof(Double)); -cout<<tmp<<Endl; -     //working with class objects A T.display (); + infile.close (); the     return 0; -}

The results are as follows:

　　

C + + binary file read and write