4.10 Chapter Summary
This chapter covered these topics:
- what a procedure is
- how to write and invoke a procedure
- the difference between value and variable parameters
- how to write preconditions and postconditions for procedures
- what a function procedure is
- about some standard procedures in Modula-2
- some rules of style and good taste in naming procedures
- recursion
It included discussion of the following Modula-2 built-ins:
| Reserved Words | Standard Identifiers |
|---|
| FORWARD | CHR |
| PROCEDURE | MAX |
| RETURN | MIN |
| VAR (new context) | ODD |
| Imported Identifiers |
|---|
| RealMath: |
| exp |
| ln |
| sqrt |
| power |
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