Re: integer overflow

[Johan Bockgård]

Chong Yidong <address@hidden> writes:

> Glenn Morris <address@hidden> writes:
>
>> I don't really understand it. In a 32-bit Emacs:
>>
>> (1+ 536870911) -536870912
>> (+ 2 536870911) -536870911
>> (1+ 536870912)  536870913.0
>> (1+ 4294967295) overflow
>> (1+ 4294967295.0) 4294967296.0
>>
>> Can you summarize how it's supposed to work?
>
> The change affects the Lisp reader: reading "536870912" or any larger
> number now gives you a float Lisp object

or an error if the integer is larger than 32 bits, as the fourth example
shows.