Help needed to round-off a number

[Chris Torek]

In article <2666 at oregon.uoregon.edu> michelbi at oregon.uoregon.edu
(Michel Biedermann) writes:
>Is there a C function (user defined or primitive (?)) that will let me
>truncate or round-off a number UP TO a certain decimal place.  For example
>transforming .567 into .6 or -1.502 into -1.5.

In the proposed ANSI C standard, printf is defined as rounding when
given a floating point format with a particular precision.  Both of
these results will be obtained with a `%.1f' printf format (assuming
a Unix or pANS-conformant printf).
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7163)
Domain:	chris at mimsy.umd.edu	Path:	uunet!mimsy!chris