(C++) Local

include <iostream>

include <assert>


int a = 10; //Global 'a'
int main(int argc, char* argv[]) 
{ 
  int a = 0; //Local 'a' 
  assert(a==0); 
  assert(::a==10); //Use scope operator to get global 'a' 
  return 0; 
} 

Topic links

• #include
• scope operator'::'
• argc
• argv
• assert
• char
• for
• #include
• int
• iostream
• main
• return
• scope operator'::'

References

• 1) Herb Sutter,Andrei Alexandrescu. C++ coding standards: 101 rules, guidelines, and best practices. ISBN: 0-32-111358-6. Chapter 10: 'Minimize global and shared data'.
• 2) Bjarne Stroustrup. The C++ Programming Language (3rd edition).ISBN: 0-201-88954-4. Chapter 1.8.2.a: 'Don't use global data (use members)'
• 3) Jarrod Hollingworth, Bob Swart, Mark Cashman, Paul Gustavson. Sams C++ Builder 6 Developer's Guide. ISBN: 0-672-32480-6. Chapter 3: 'Avoid using global variables'
• 4) Jesse Liberty. Sams teach yourself C++ in 24 hours. ISBN: 0-672-32224-2. Hour 3, paragraph 'Global variables': 'In C++, global variables because they can create very confusing code that is hard to maintain.'