> Hi,
>
> I get the following error, when I try to 'make' it on a Silicon-Graphics
> INDY with IRIX 5.3 and cc.
>
> cfe: Error: list.c, line 162: This expression is not an lvalue.
> ((r==1)? p2->right: p2->left) = node;
> ------------------------------^
>
> Who can help ?
I can! DEC C has the same problem with this code, and I think the
compilers are right to complain about what looks like illegal ANSI C,
the reason being that this compiler believes that ?: doesn't return an
lvalue.
Anyway, the solution is to make the code say this:
*(((r==1)? &p2->right: &p2->left) = node;
Turning the two possible results from ?: into pointers makes them into
lvalues which can then be accessed using the * operator.
Ray.
--
Ray Bellis, MA(Oxon) - Technical Manager - Oxford CommUnity Internet plc
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