Modula-2 Reference

                             Beginners Version

Single Types

   * CARDINAL
   * INTEGER
   * CHAR: characterconstant: 'a' 
   * REAL
   * BOOLEAN: 
	values TRUE & FALSE
	operators NOT, AND, OR

Structured Types

   * ARRAY
        o variable declaration: VAR array1: ARRAY [1..20] OF CARDINAL;
        o element of array: array1[2] := 1;
        o special array: string (ARRAY OF CHARs)
             + assignment: str := "bla";
        o multidimensional array :
             + VAR matrix10by20: ARRAY [1..10] OF ARRAY[1..20] OF CARDINAL;
             + identical declaration:  VAR matrix10by20: ARRAY [1..10],
               [1..20] OF CARDINAL;
             + use: matrix10by20[5, 15] := 7; or matrix10by20[5][15] := 7;
   * RECORD
        o declaration:
             + VAR jan : RECORD
             +            name, firstName: ARRAY[1..35] OF CHAR;
             +            length: CARDINAL;
             +     END;
        o use: jan.name := "Lemeire";   jan.firstName := "Jan";

Operators

Operator 	Explanation
NOT, AND, OR	logical operators
=, #    	equals, different
<, >, >=, <=	relational operators