Program Units

• Program Units
• Main Program Syntax
• Program Example
• Introduction to Procedures
• Subroutines
• Functions
• Argument Association
• Local Objects
• Argument Intent
• Scoping Rules
• Host Association - Global Data
• Scope of Names
• SAVE Attribute and the SAVE Statement
• External Procedures
• Subroutine Syntax
• External Subroutine Example
• Function Syntax
• External Function Example
• Procedure Interfaces
• What Appears in an Interface?
• Interface Example
• Required Interfaces
• Side Effect Functions
• Recursive Procedures
• Recursive Function Example