2006/9/6, Robin Becker <[EMAIL PROTECTED]>:
> enigmadude wrote:
> > As many have heard, IronPython 1.0 was released. When I was looking
> > through the listed differences between CPython and IronPython, the
> > document mentioned that using large exponents such as 10 **
> > 735293857239475 will cause CPython to hang, whereas IronPython will
> > raise a ValueError. Trying this on my own machine, it did indeed seem
> > to cause CPython to hang. In cases such as this, should this be
> > considered a bug in the CPython implementation that needs to be fixed?
> > Or is there a reason for this, such as consideration of future changes
> > and language definition vs language implementation, etc.?
> >
> I suspect the hang may be python actually trying to work out the
> 1 followed by 735293857239475 zeroes. Perhaps IronPython has a forward
> looking algorithm that knows when to give up early.
I think that IronPython does the same as the .Net runtime does. Look
at boo's output:
$ booish
Welcome to booish, an interpreter for the boo programming language.
Running boo 0.7.5.2013.
The following builtin functions are available:
dir(Type): lists the members of a type
help(Type): prints detailed information about a type
load(string): evals an external boo file
globals(): returns the names of all variables known to the interpreter
Enter boo code in the prompt below.
>>> 10**100
1E+100
>>> 10**1000000
∞
>>> 10**735293857239475
ERROR: Error reading from 'input3': 'Value too large or too small.'.
>>> (10**100).GetType()
System.Double
Well, it's a double on boo instead of a very long int as in Python. I
don't know if in IronPython it's the same.
--
Felipe.
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