slices ; Stroustrup & libstdc++

[Gabriel Dos Reis]

<llewelly@dbritsch.dsl.xmission.com> writes:

| On Sat, 17 Jun 2000 llewelly@dbritsch.dsl.xmission.com wrote:
| 
| > On Sat, 17 Jun 2000, brent verner wrote:
| > 
| > > on Fri, Jun 16, 2000 at 12:59:00PM +0200, Gerhard Wesp typed aloud:
| > > |   hi all,
| > > | 
| > > |   i just tried a slice_array example from stroustrup, 3rd ed., p. 671
| > > | which fails with the following error:
| > > | 
| > > | grisu ~/c++% cat slice.cc 
| > > | #include <valarray>
| > > | 
| > > | void f(std::valarray<double>& d)
| > > | {
| > > |   std::slice_array<double>& v_even = d[std::slice(0,d.size()/2,2)];
| 
| A bit more info: 
| 26.3.2.4 has:
| 
|   slice_array<T> operator[](slice);
| 
| and since temporaries cannot be assigned to non-const references, this
|   code seems to be wrong.

Exactly.

-- Gaby