Hi Oliver,
Here is an example of an invalid lvalue in assignment:
: cat test.c
int foo()
{
return 7;
}
int main()
{
foo() = 3; // Line 8
}
: gcc test.c
test.c: In function 'main':
test.c:8: error: invalid lvalue in assignment
Notice that line 8 is trying to assign 3 to an rvalue. An rvalue is not an lvalue.
Also notice that GCC indicated the line, 8, that the invalid lvalue in assignment is being attempted.
I can only give you a general example and guidelines as to how things are going awry in the error you've encountered. If you can provide a small compilable example of the problem you are facing, I can give you better advice.
HTH,
--Eljay
