ó++0x: atomic_load

[Dmitriy V'jukov]

I'm reading latest draft of C++0x N2588:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2588.pdf

29.4.4/9
C atomic_load(volatile A * object);
C atomic_load_explicit(volatile A * object, memory_order);
C A ::load(memory_order order = memory_order_seq_cst) volatile;
Requires: The order argument shall not be memory_order_acquire nor
memory_order_acq_rel.

???

Why I can't specify:
atomic_load_explicit(&a, memory_order_acquire);
?

Or it's just a copy-past error? I think it must be:

29.4.4/9
C atomic_load(volatile A * object);
C atomic_load_explicit(volatile A * object, memory_order);
C A ::load(memory_order order = memory_order_seq_cst) volatile;
Requires: The order argument shall not be *memory_order_release* nor
memory_order_acq_rel.


Dmitriy V'jukov

 

[Ian Collins]

I'm reading latest draft of C++0x N2588:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2588.pdf

This (and your other post) should probably be asked on comp.std.c++.

 

[Erik Wikström]

I'm reading latest draft of C++0x N2588:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2588.pdf

29.4.4/9
C atomic_load(volatile A * object);
C atomic_load_explicit(volatile A * object, memory_order);
C A ::load(memory_order order = memory_order_seq_cst) volatile;
Requires: The order argument shall not be memory_order_acquire nor
memory_order_acq_rel.

???

Why I can't specify:
atomic_load_explicit(&a, memory_order_acquire);
?

Or it's just a copy-past error? I think it must be:

29.4.4/9
C atomic_load(volatile A * object);
C atomic_load_explicit(volatile A * object, memory_order);
C A ::load(memory_order order = memory_order_seq_cst) volatile;
Requires: The order argument shall not be *memory_order_release* nor
memory_order_acq_rel.

It seems to be a copy-paste error since the wording in n2427 agrees with
your version. Perhaps you should send a mail to Pete Becker (his address
is at the top of the draft).

 

[Anthony Williams]

I'm reading latest draft of C++0x N2588:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2588.pdf

29.4.4/9
C atomic_load(volatile A * object);
C atomic_load_explicit(volatile A * object, memory_order);
C A ::load(memory_order order = memory_order_seq_cst) volatile;
Requires: The order argument shall not be memory_order_acquire nor
memory_order_acq_rel.

???

Why I can't specify:
atomic_load_explicit(&a, memory_order_acquire);
?

Or it's just a copy-past error? I think it must be:

29.4.4/9
C atomic_load(volatile A * object);
C atomic_load_explicit(volatile A * object, memory_order);
C A ::load(memory_order order = memory_order_seq_cst) volatile;
Requires: The order argument shall not be *memory_order_release* nor
memory_order_acq_rel.

I think you're right. I'll forward your mail to the project editor.

Anthony

 

[Ian Collins]

* Ian Collins:

This (and your other post) should probably be asked on comp.std.c++.

The last article in [comp.std.c++] was 6th Jan 2008, and as far as I
know new articles are still not accepted.

OK, that shows when I last checked that group, what happened to it, no
moderators left?