I wanted to use multiple source files for one program.I created a file "key.h" as follows:
Code:
#ifndef KEY_H #define KEY_H class Inputk { int hkey[16][5]; char Kuser[64]; protected: int Key[65]; public: Inputk(); void read(); void displayhex(); ~Inputk(){} }; class Lookup1:public Inputk { int Key_temp[57],PC1[9][8];