Forte 6up1 compiler bug

Question

This piece of code does not link with -xO2. The error is along the line "missing symbol XX_T" ....
#include <iostream>
char const * const XX_T = "XX";
template<class T>
class MY
public:
void print();
template<class T>
void MY<T>::print()
{  int i = XX_T[0]; } // if moved into the class declation then it'll work ....
main() { MY<int> t;  t.print(); }

Answer 1

Hi there,
This particular example is valid C++, but Sun's compiler does not support it. Please refer to the
compiler documentation rgarding references to objects or functions with internal (static) linkage
from templates.In C++, a file-scope or namespace-scope object declared const has internal linkage unless explicitly declared extern.
Add "extern" to the definition of XX_T and the code will compile and link.
If you don't want to give XX_T global scope, put it in a namespace, or make it a static member of the template class, or make it a local static variable in the print function.
....jagruti
DTS
Sun Microsystems Inc.