Global variables are known throughout the entire program and may be used by any piece of code. : global variable « Language Basics « C++ Tutorial

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C++ Tutorial » Language Basics » global variable

1.5.3.Global variables are known throughout the entire program and may be used by any piece of code.

#include <stdio.h>    

       

void func1(void), func2(void);   

     

int count;  

     

main(void)   

{   

  count = 100;   

  func1();   

  return 0; 

}   

     

void func1(void)   

{   

  int temp;   

     

  temp = count;   

  func2();   

  printf("count is %d", count); /* will print 100 */   

}   

     

void func2(void)   

{   

  int count;   

     

  for(count=1; count<10; count++)   

    putchar('.');   

}

1.5.global variable
	1.5.1.	Use a global variable
	1.5.2.	Global class variable
	1.5.3.	Global variables are known throughout the entire program and may be used by any piece of code.
	1.5.4.	Use :: to reference global variable

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