Inner block variable scope : block scope variable « Language Basics « C++ Tutorial

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C++ Tutorial » Language Basics » block scope variable

1.6.3.Inner block variable scope

#include <iostream> 

using namespace std; 

 

int main() 

{ 

  int i; 

  int j; 

 

  i = 10; 

  j = 100; 

 

  if(j > 0) { 

    int i; // this i is separate from outer i 

     

    i = j / 2; 

    cout << "inner i: " << i << '\n'; 

  } 

 

  cout << "outer i: " << i << '\n'; 

 

  return 0; 

}

inner i: 50
outer i: 10

1.6.block scope variable
	1.6.1.	Variable block scope
	1.6.2.	Variables can be local to a block
	1.6.3.	Inner block variable scope
	1.6.4.	Names in inner scopes can hide names in outer scopes.
	1.6.5.	Using the scope resolution operator: '::'
	1.6.6.	global and block scope
	1.6.7.	scope code block
	1.6.8.	global variables across functions
	1.6.9.	Using the scope resolution operator (2)

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