Subtraction (-)


When the - operator has two operands of integral type or real type it performs subtraction, according to the following rules:

First the numeric type conversion rules are applied. After applying the numeric type conversion rules, the operands are either both of integer type, or both of word type or both of real type, or both of address type or one operand is of address type and the other operand is not.


Here are some examples using the - operator to perform subtraction:

   3 - 5      which results in the integer value -2
   3 - 5.0    which results in the real value -2.0
   3.0 - 5    which results in the real value -2.0
   3.0 - 5.0  which results in the real value -2.0