
float(+Number, -Result)

   Converts Number to float and unifies the resulting value with
Result.



Arguments
   Number              A number.
   Result              Output: float.

Type
   Arithmetic

Description
   This predicate is used by the ECLiPSe compiler to expand evaluable
   arithmetic expressions.  So the call to float(Number, Result) is
   equivalent to

    Result is float(Number)

    which should be preferred for portability.

   In coroutining mode, if Number is uninstantiated, the call to float/2
   is delayed until this variable is instantiated.




Modes and Determinism
   float(+, -) is det

Exceptions
     4 --- Number is not instantiated (non-coroutining mode only).
    24 --- Number is not of a numeric type.

Examples
   
    Result is float(1).		% gives Result = 1.0
    Result is float(-6).	% gives Result = -6.0


See Also
   is / 2
