File Scope

Referenced from GlobalVariable.

Scope refers to the range of code/program in which the variable is defined.

FileScope variables are partially global

Example of FileScope in C:

   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 ##


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