Problem returning doubles from a function

[Farrell Woods]

In article <39722 at csvax1.cs.tcd.ie> omahony at csvax1.cs.tcd.ie (Donal O'Mahony - OMAHONY at cs.tcd.ie) writes:
>Can anone explain the problem with the following program (made up of
>2 files).

[example deleted]

You get garbage for output, right?  In main.c, you have no prototype in scope
for the function ``store_length'' in rt1.c.  The compiler defaults to casting
the argument to store_length to an int, where you would have preferred it
to pass a double.

The solutions are: explicitly cast the argument to double, or (better still)
create a prototype in main.c for the function store_length.

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