slices ; Stroustrup & libstdc++

[Gabriel Dos Reis]

brent verner <brent@rcfile.org> writes:

[...]

| First, let me apologize for inappropriate use of the quote. Second, 
| let me say that I spent the past weekend trying to understand the 
| implementation of the valarray classes enough to fix some problems 
| I found.

The valarray library is certainly full of bugs, and I'll love to
address them, if it turns out that they are actually bugs in the
implementation.

|   valarray(const slice_array<T>&); // does not compile

There is a library issue along these lines. I suggested a
possible resolutions. I don't know what the LWG will decide.

|   valarray(const valarray& name);  // only copies value of name[0]

I guess there is a missing sizeof(_Tp) factor in the optimized
version. 

|   (I'll post a full bug report later this week if I can't solve the
|    problems)
| 
| BTW, where is __restrict__ defined?

It is one of the thousands of compiler extensions useful for the
library implementation purpose. 

-- Gaby