On Sun, 30 Jul 2006 11:18:10 -0300
Gerhard Fiedler <[EMAIL PROTECTED]> wrote:
#> In any case, the following doesn't seem to be implementation detail
#> (and rather a part of the language), but it's not really
#> understandable with a C++ concept of "variable":
#>
#> >>> a=3
#> >>> id(a)
#> 3368152
#> >>> b=a
#> >>> id(b)
#> 3368152
#> >>> b=4
#> >>> id(b)
#> 3368140
How about that?
int main()
{
int three = 3;
int four = 4;
int *a, *b;
a = &three;
printf("%i %i\n",a,*a);
b = a;
printf("%i %i\n",b,*b);
b = &four;
printf("%i %i\n",b,*b);
return 0;
}
Just in case you don't have C compiler at hand, it prints:
1244896 3
1244896 3
1244888 4
#> You don't expect the "identity" of the variable b to change with a simple
#> assignment from a C/C++ point of view.
That depends on your definition of "identity", of course.
#> You also don't expect the "identity" of a and b to be the same
#> after assigning one to the other.
Don't I?
--
Best wishes,
Slawomir Nowaczyk
( [EMAIL PROTECTED] )
You can tell a bigot, but you can't tell him much.
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