5.1.1 Exception-Handling Requirements

The exception-handling capabilities specified in this standard are for support of:

• Reliable programmer and program control over response to exceptions and reporting of such exceptions, and over the flow of control when exceptions occur.
  
  
• Orderly termination of layered applications.
  
  
• Correct and predictable exception handling in a multilanguage environment.
  
  
• The construction of modular, maintainable multilanguage applications.
  
  
• Support for parallel multithreaded application execution, including:
  • Per-thread exception handling.
    
    
  • Handling of asynchronous exceptions.
    
    
  • Safe thread exit in a multithreaded environment.
• Capability for subsystems and applications to override system messages to provide a more suitable application-oriented interface, specifically including modular, multinational message and error reporting.