What Different And Function Between Global And Local Variable C++

Question

iam not undertestand for what is global variable. someone can explain with simple answer ?.

Answer 1

Most variables have a limited scope in which they are accessible (within the function where they are declared, but not in functions that call or are called by that function).

A global variable is declared outside of any function, and is accessible to any part of the program. Typically they will be declared just after the #include statements.

That can make some things easier to write, but global variables can make for debugging headaches if you are not very careful with them. Personally, I avoid them whenever possible.

Did that help?

Answer 2

Glad to have helped!

Answer 3

iam undertestand now :D thanks jim