[chbot] Pop quiz C

[Stephen Irons]

It looks as though the compiler could do anything it wanted to because the
code invokes undefined behaviour by attempting to shift (what looks like) a
32-bit integer type by more than the number of bits in that type.

http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf, page numbered
85, physical page number 97

This is a draft C99 with TC3; I hope it has not changed since then.

Stephen Irons



On 26 April 2017 at 10:04, hamster <hamster at snap.net.nz> wrote:

> Sorry - no chocolate fish this time
>
> What is the value of a?
>
>   a = 0xFFFFFFFF << 34;
>
> Have you checked your answer?
>
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