🚀 go-pugleaf

In article jof@solutions.solon.com, seebs@solutions.solon.com (Peter Seebach) writes:
>
>...  There exists (on at least one machine) at least
>one float greater than INT_MAX which compares less than (float) INT_MAX;
>in particular, on a 68000 system I use, INT_MAX is 2147483647, but
>(float) INT_MAX is 2147483648.  So, 2147483647.5 would compare less
>than INT_MAX, but would (in fact) be too large.

The implementation of type float usually does not have enough precision
to represent 2147483647.5 exactly. You are thus comparing pre-rounded
values which differ only beyond the point where rounding occurs.

Try using a floating-point type which has enough precision to represent
the values you are comparing. Type long double in a conforming implementation
will be big enough. Type double might be big enough. All bets are off if
the implementation does not conform to the standard. (The terms "portable"
and "standard-conforming" are unrelated.)
---
Steve Clamage, stephen.clamage@eng.sun.com