simon at unisolve.com.au
Thu Jun 29 20:51:10 PDT 2006
On Fri, 30 Jun 2006 01:41 pm, Mathew Robertson wrote:
> > ... i.e. where scripts and programs can identify bad logic or
> > poor use of syntax that is likely to lead to errors (simplest example is
> > the use of '=' for floating point numbers -- see Sakai URLs below for
> > more examples).
> Care to elaborate - what is wrong with floating point numbers?
I believe he means suspect code that attempts to check the *equality* of
floating point numbers, where the internal representation of those
numbers may mean that they are functionality equivalent, but
actually different values when compared with a bare '='
See the section Floating-point Arithmetic in perldoc perlop
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