Re: Question about integer out of range in function

On 2021-05-16 11:09:38 -0700, David G. Johnston wrote:
> On Sunday, May 16, 2021, Condor <condor(at)stz-bg(dot)com> wrote:
>
>
>      new_time = fromtime * 1000; -- here is line 19
>      
>
>
> An integer times an integer results in an integer.  Period.  Neither fromtime
> nor new_time have been assigned to yet, the in-memory result of the computation
> is only allocated integer bits and if you overflow that you get an error.

This is also true in C, btw, except that in C an overflow of a signed
int is undefined behaviour while an unsigned int is required to wrap
around.

hp

--
_ | Peter J. Holzer | Story must make more sense than reality.
|_|_) | |
| | | hjp(at)hjp(dot)at | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"