memtemp84.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

// Build don't link:

// Copyright (C) 1999 Free Software Foundation

// by Alexandre Oliva <[e-mail]>
// simplified from bug report by redleaf <[e-mail]>

struct B {
  template <class> void bar();
} b;

template <class T> void foo() {
  b.bar<T>(); // gets bogus error - bar undeclared
  b.template bar<T>(); // gets bogus error - ditto
  b.B::bar<T>();
}

template void foo<void>(); // gets bogus error