Static is a reserved word in many programming languages to modify a declaration The effect of the keyword varies depending on the details of the specific programming language, most commonly used to modify the lifetime (as a static variable) and visibility (depending on linkage), or to specify a class member instead of an instance member in classes. In computer programming, a global variable is a variable with global scope, meaning that it is visible (hence accessible) throughout the program, unless shadowed The set of all global variables is known as the global environment or global state In compiled languages, global variables are generally static variables, whose extent (lifetime) is the entire runtime of the program, though in. Scope, lifetime and the static keyword an external variable can be accessed by all the functions in all the modules of a program
It is a global variable For a function to be able to use the variable, a declaration or the definition of the external variable must lie before the function definition in the source code. A snippet of c code from the linux kernel c syntax is the form that text must have in order to be c programming language code These terms are commonly used in java, c#, [5] and c++, where class variables and class methods are declared with the static keyword, and referred to as static member variables or static member functions. Every global variable in c code is a static variable in this sense In c and related languages, static variable can also mean a variable defined with the static keyword.
