2.96 20000320: compose1 behavior with reference arguments

[Andreas Kabel]

Hi,

I recently did something along the lines of

//////////////////////////////
#include <functional>

struct A: public unary_function<int &, int &>  {
  int &operator()(int  &a) { return a; }
};

unary_compose<A,A> a(compose1(A(), A()));

//////////////////////////////

And got

...
gcc version 2.96 20000320 (experimental)
/usr/local/egcs-snapshot/include/g++-3/stl_function.h: In instantiation of `unary_compose<A, A>':
test.cpp:7:   instantiated from here
/usr/local/egcs-snapshot/include/g++-3/stl_function.h:250: forming reference to reference type `int
/usr/local/egcs-snapshot/include/g++-3/stl_function.h:250: &const'

Compilation exited abnormally with code 1 at Mon Mar 27 11:12:08


Shouldn't compose1 work without restrictions on the 
functional objects' argument and return types?


Cheers,

	Andreas




-- 
Andreas Kabel                      | akabel@slac.stanford.edu
Stanford Linear Accelerator Center | +1(650)926-5069 (office) 
2575 Sand Hill Road, MS 26         | +1(650)926-5368 (fax)
Menlo Park, CA 94025               | +1(650)917-8559 (home)