Referenced from GlobalVariable.
Scope refers to the range of code/program in which the variable is defined.
FileScope variables are partially global
static int myvar; /* file scope */ int myothervar; /* global scope */ void foo() { myvar = 1; } void baz() { myvar = 2; }Example of FileScope in PerlLanguage where:
my $var = 1; ## THIS VARIABLE HAS FILESCOPE ## if(1){ my var = 2; ## THIS VARIABLE IS DEFINED WITHIN if(1){HERE} ## if(2){ my $whatever = 1; $var = $var + 1; ## access locally scoped '$var' ## $var == 3 here ## } } ## $var == 1 here ## ## $whatever == undefined here ## if(3){ $var = $var + 1; ## access filescope '$var' ## $var == 2 here ## ## $whatever still == undefined here ## } ## $var == 2 here ## ## $whatever still == undefined here ##