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6.1.1 Overview of the Loop Facility

The loop macro performs iteration.

• Simple vs Extended Loop  
• Simple Loop  
• Extended Loop  
• Loop Keywords  
• Parsing Loop Clauses  
• Expanding Loop Forms  
• Summary of Loop Clauses  
• Summary of Variable Initialization and Stepping Clauses  
• Summary of Value Accumulation Clauses  
• Summary of Termination Test Clauses  
• Summary of Unconditional Execution Clauses  
• Summary of Conditional Execution Clauses  
• Summary of Miscellaneous Clauses  
• Order of Execution  
• Destructuring  
• Restrictions on Side-Effects