Re: Strange processing!!

Weird! I ran the same program, and also go 22 as a result (both times).

I use Windows XP and MSVC++ 6.0

NB: The ":-" is used frequently in Europe and the 
UK where, in the US, we only use ":". So he was 
specifying the result as 21, not -21.

~Rick
At 2006-03-14 09:46 AM, you wrote:

>Hi Viorel,
>Look at Anuj's problem again: In one situation he is initializing b, in
>the other the
>same expression is used to change an already initialized b. Both use the
>expression
>
>++a + ++a + ++a
>which with a starting at 5 should equal 6 + 7 + 8...so why in the second
>example
>is b set to 54? (Anuj you show the outputs as :-21 and :-54 are yours being
>printed out as negative numbers?)
>
>Just a sec, lemme write a short program myself and see if I have the
>same problem as
>Anuj...
>
>
>===================
>void first(void) {
>
>int a = 5, b= ++a + ++a + ++a;
>
>printf("first %d \n",b);
>}
>
>void second(void) {
>int a = 5, b=0;
>
>b = ++a + ++a + ++a;
>printf("second %d \n",b);
>}
>
>
>int main (void) {
>
>first();
>second();
>
>return 0;
>}
>===================
>
>When compiled and run I get:
>
>first 22
>second 22
>
>in both gcc under linux (slackware 3.6) and windows 98 (Microsoft visual
>c/c++ v6.0)
>well at least I get the same number.. 22?
>
>
>
>
>Viorel ANUSCA wrote:
> > Hi Anuj,
> >
> > that it is beaucause:
> >
> >
> > ­++n increments n before its value is used
> >
> >
> >
> > and you have: b = x1+x2+x3 = 6+7+8 = 21
> >
> > Best,
> > Viorel
> >
> >
> > anuj gupta <[email protected]> a écrit :
> > Hi All,
> > This is Anuj,an MCA std from India.
> > I tried the following 2 progs, both resulted in
> > different outputs. But i don't understand the REASON
> > behind them.
> >
> > 1.
> > int a=5, b = ++a + ++a + ++a;
> > printf("%d",b);
> > OUTPUT :- 21
> >
> > 2.
> > int a=5, b;
> > b = ++a + ++a + ++a;
> > printf("%d",b);
> > OUTPUT :- 54
> >
> > Even if i use Macro expansion instead of writing the
> > whole expression, even then the result is same.
> > If anyone out there can help me out it'll be a big
> > help.Thank you.
> >
> >
> >
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