Scope

The scope of an entity is the range of a program within which the entity is visible and accesible.

• Local scope: the entity is visible within the program unit in which it is defined.
• When the declaring program CONTAINS functions (and/or subroutines), the declared entity can be made available to the hosted procedures via
  • Host association: An entity defined in a program unit is visible within all procedures contained in that program unit.
  • Argument association. An entity defined in a program unit is made available to a contained function or subroutine by being passed as argument.
• Global scope: the entity has to be declared in a module; then it is visible in each program unit which USEs that module.