Operators

The language has the usual logical operators such as: ==, !=, <, >, <=, >=, |, $\&$ and ! as well as the arithmetic operators +, -, * and /. The addition operator + is also used for the string concatenation. The operator OR (resp. AND and NOT) is a synonym for | (resp $\&$ and !).                

$\vartriangleright$ Example 5:

  step := 10
  PRINT "The step is "+TOSTRING(step)

  $\vartriangleright$ Remark: Most operators can be applied to expressions of different types. For example, the multiplication of an integer by a AST of variant "int_cst" (i.e. a fortran constant) will produce an integer value ; this AST is automatically casted into an integer value. When an appropriate cast can not be found, most operators return FALSE.