[ Arithmetic | Reference Manual | Alphabetic Index ]

# fix(+Number, -Result)

Unifies the integer part of Number with Result (Truncation towards zero).

Number
  A number.
Result
  Output: integer.

## Description

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

        Result is fix(Number)

which should be preferred for portability.

This function is deprecated. For clearer code, please use

        Result is integer(truncate(Number)).

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

### Modes and Determinism

- fix(+, -) is det

### Exceptions

(4) instantiation fault
  Number is not instantiated (non-coroutining mode only).
(5) type error
  Number is of type breal.
(24) number expected
  Number is not of a numeric type.

## Examples

        Result is fix(1.5).		% gives Result = 1
        Result is fix(-6.4).	% gives Result = -6

## See Also

is / 2, integer / 2, truncate / 2, floor / 2, ceiling / 2, round / 2