[PATCH v2] tst: Provide test for difftime

[Lukasz Majewski]

Dear Community,

> Dear Community,
> 
> > Hi Paul,
> >   
> > > On 1/27/21 1:46 PM, Lukasz Majewski wrote:    
> > > > I also think that sizeof (time_t) > 4 is more readable and
> > > > simpler. Moreover, similar condition was used in
> > > > ./time/tst-y2039.c test.      
> > > 
> > > It would be simpler, except for the warnings from GCC. Using 
> > > __builtin_add_overflow would mean we wouldn't have to worry about
> > > those warnings.    
> > 
> > I don't mind to use it, when other developers agree.
> >   
> 
> Any feedback on this idea?

Would it be OK, if I follow the idea proposed by Paul to check if the
overflow in time_t is present (with __builtin_add_overflow()) in tests,
which require it?

> 
> > 
> > 
> > 
> > Best regards,
> > 
> > Lukasz Majewski
> > 
> > --
> > 
> > DENX Software Engineering GmbH,      Managing Director: Wolfgang
> > Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell,
> > Germany Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> > lukma@denx.de  
> 
> 
> 
> 
> Best regards,
> 
> Lukasz Majewski
> 
> --
> 
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> lukma@denx.de




Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@denx.de
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