Linking Errors for STL

Question

Hi,
I am working on a porting project. I am porting code compiled earlier under gcc2.95 to Sun Workshop 6. We are using stl libraries in our code. I had made chages in code like
using std::sort;
using std::istream;
using std::ostream;
using std::vector;
using std::list;
but it gives link time errors like
ild: (undefined symbol) void std::__final_insertion_sort<int*>(__type_0,__type_0) -- referenced in the text segment of ../../studio_SOLARIS64/lib/leq.a(bdd_FAExpression.o)
ild: (undefined symbol) __type_1 std::copy<int*,int*>(__type_0,__type_0,__type_1) -- referenced in the text segment of ../../studio_SOLARIS64/lib/leq.a(bdd_FAExpression.o)
ild: (undefined symbol) void std::vector<FAExpression*,std::allocator<FAExpression*> >::__insert_aux(FAExpression**,FAExpression*const&) -- referenced in the text segment of ../../studio_SOLARIS64/lib/leq.a(bdd_FAExpression.o)
ild: (undefined symbol) void std::vector<FAExpression*,std::allocator<FAExpression*> >::__insert_aux(FAExpression**,FAExpression*const&) -- referenced in the text segment of ../../studio_SOLARIS64/lib/leq.a(leq_convert.o)
ild: (undefined symbol) void std::vector<FAMacroGroup*,std::allocator<FAMacroGroup*> >::__insert_aux(FAMacroGroup**,FAMacroGroup*const&) -- referenced in the text segment of ../../studio_SOLARIS64/lib/leq.a(bdd_FAExpression.o)
ild: (undefined symbol) void std::vector<FAMacro*,std::allocator<FAMacro*> >::__insert_aux(FAMacro**,FAMacro*const&) -- referenced in the text segment of ../../studio_SOLARIS64/lib/leq.a(bdd_FAExpression.o)
Can anyone help me to sort out thse problems. I would like to say thanks in advance.
Amandeep

Answer 1

Hi Amandeep!
I'm sorry that nobody answered you for 6 years. Maybe this answer will be useful for someone nowadays.
I had the same problem some time ago and I got to fix it after hard work and thinking.
This problem is specific for Sun WorkShop 6 update 2 C++ 5.3 2001/05/15.
First of all, the best solution is updating to the last version of Sun Studio if possible, because
the version mentioned above is an end-of-life one. If not possible, try the following.
Typically, you declare a vector and later add elements to it:
//Template is declared empty:
std::vector<ClassObject> ObjectVector;
// Later, when appendig an object is required, methods insert or push_back are used:
ObjectVector.push_back (Object);
// or
ObjectVector.insert (Position, Object);
But push_back and insert methods, among others, use __insert_aux method, that is not available.
However, there's an other way to handle a vector that avoid the use of those buggy methods
(buggy in this compiler version only):
int n = theNeededSize;
std::vector<ClassObject> ObjectVector (n);
int TemplateSize = n;
// Now objects in the template can be set properly.
for (size_type Index = 0; Index < TemplateSize; Index++)
     ObjectVector[Index].SetDataMethod1 (...);
     ObjectVector[Index].SetDataMethodN (...);
     // or ...
     ClassObject objectOfClassObject;
     ObjectVector[Index] = objectOfClassObject;
Using the constructor:
EXPLICIT vector (sizetype n)
: __start(0), __finish(0), __end_of_storage(0,Allocator())
T value = T();
__initn(n,value);
solves the problem.
In this thread there is more detailed information:
http://forum.java.sun.com/thread.jspa?threadID=5071034
Hope this is useful.
Bye.