C++ PATCH: Disallow floating-point literals in integral-constant expressions

[Gabriel Dos Reis]

Joe Buck <Joe.Buck@synopsys.COM> writes:

| On Tue, Feb 01, 2005 at 12:16:14PM -0800, Mark Mitchell wrote:
| > My thinking is that we've been disallowing template parameters of 
| > floating-point type for a while now.  If we really want to allow 
| > constant expressions of floating-point type forever more, we ought to 
| > also allow template parameters of floating-point type as well.
| 
| I would argue against allowing template parameters of floating-point
| type, because you get two distinct functions instead of one because
| of rounding errors: func<1.0> vs func<0.9999999999999>.

Not that I'm a fan of that extension, but I'm not convinced by that
argument.  How is it different from 

    func<some-integer-value>

?

-- Gaby