__PRETTY_FUNCTION__ in a destructor of a template looks like a constructor
that returns void and takes no args:

e.g., this code:
// begins
#include <iostream>

template <typename T>
struct X {
  X() { std::cout << __PRETTY_FUNCTION__ << std::endl; }
  ~X() { std::cout << __PRETTY_FUNCTION__ << std::endl; }
};

int main() {
  { X<int> x;
  }
  return 0;
}
// ends

when compiled and executed produces:
X<T>::X() [with T = int]
void X<T>::X() [with T = int]

Release:
3.1.1

Environment:
System: SunOS bullet 5.8 Generic_108528-15 sun4u sparc SUNW,Ultra-5_10
Architecture: sun4

	
host: sparc-sun-solaris2.8
build: sparc-sun-solaris2.8
target: sparc-sun-solaris2.8
configured with: ../gcc-3.1.1/configure --with-cpu=ultrasparc --enable-lanaguages=c,c++,f77 : (reconfigured) ../gcc-3.1.1/configure --with-cpu=ultrasparc --enable-languages=c,c++,f77

How-To-Repeat:
compile and run above code with g++