Re: [PATCH] 26.valarray.cassign.cpp

[Martin Sebor]

Farid Zaripov wrote:

-----Original Message-----
From: Martin Sebor [EMAIL PROTECTED] On Behalf Of Martin Sebor
Sent: Friday, July 27, 2007 7:06 PM
To: stdcxx-dev@incubator.apache.org
Subject: Re: [PATCH] 26.valarray.cassign.cpp

Farid Zaripov wrote:

The 26.valarray.cassign.cpp test expect that UserClass

type provides

+, -, *, / operations. But these operations are not defined in rw_value.h.

HP aCC and Intel C++ compile the code but I did notice some errors from gcc yesterday, and I see Sun C++ has trouble with the code as well. I tend to trust Intel C++ over the other compilers, so I wonder if the reasons for the error are actually compiler bugs. Otherwise there's a bug in Intel

C++ (and HP aCC), or we're relying on some extension. What's
your take on it?

  As I see from night build results, that Intel C++ 10.0 and acc 6.13
also failed to compile:

You're right, I only looked at the output from generating dependencies
abd didn't go as far as the actual compilation. Doh! It's still odd,
because I compiled the test manually using Intel C++ 10.0 on Linux
before I committed it. I'll need to look into why it had passed then
or what I did wrong. Let me do that first and apply your patch when
I know about what went wrong.

Martin

http://people.apache.org/~sebor/stdcxx/results/linux_suse-9.1-amd64-icc-
32b-10.0-15s-559650-log.gz.txt
http://people.apache.org/~sebor/stdcxx/results/linux_suse-9.1-amd64-icc-
64b-10.0-8S-559650-log.gz.txt
http://people.apache.org/~sebor/stdcxx/results/hpux-11.23-ia64-acc-64b-6
.13-8S-559650-log.gz.txt


  The test instantiating valarray<UserClass>::operator{+-/*}= (...)
operators, but they can't be instantiated
because of  UserClass has not provided +,-,/,* operations.

From standard:

  26.5.2.6 valarray computed assignment [valarray.cassign]
valarray<T>& operator*= (const valarray<T>&);
valarray<T>& operator/= (const valarray<T>&);
valarray<T>& operator%= (const valarray<T>&);
valarray<T>& operator+= (const valarray<T>&);
valarray<T>& operator-= (const valarray<T>&);
valarray<T>& operator^= (const valarray<T>&);
valarray<T>& operator&= (const valarray<T>&);
valarray<T>& operator|= (const valarray<T>&);
valarray<T>& operator<<=(const valarray<T>&);
valarray<T>& operator>>=(const valarray<T>&);
1 Each of these operators may only be instantiated for a type T to which
the indicated operator can be applied. Each
of these operators performs the indicated operation on each of its
elements and the corresponding element of the
argument array.


Farid.