> On 18 Sep 2019, at 21:37, Niels Möller wrote:
>
> …a problem, at least in theory, if it is "undefined behavior". I'm afraid I
> don't know these fine details of the C spec by heart.
It is undefined behavior according to the section “Shift operators” in
https://en.cppreference.com/w/c/langua
The t-sqrlo test invokes undefined behavior.
The mpn_ptr scratch as well as the boundary values of the mpn_ptr pp are
uninitialized values. In t-sqrlo.c their values are recorded (lines
92,93,100,101) before mpn_sqrlo and mpn_sqr are called. Their values are
subsequently checked (lines 105,106)
Ciao,
Il Ven, 20 Settembre 2019 5:33 pm, Andrew Wock ha scritto:
> The t-sqrlo test invokes undefined behavior.
Yes, also Valgrind detects it...
> The mpn_ptr scratch as well as the boundary values of the mpn_ptr pp are
> uninitialized values.
Not exactly, only scratch is uninitialised.
> I wa
