[cpp-threads] High-level vs. low-level

[Peter Dimov]

Alexander Terekhov wrote:
> On 7/13/06, Peter Dimov <pdimov at mmltd.net> wrote:

>>     int __atomic x;
> 
> Uh. And why not simply atomic_int (could use std::atomic<int> under
> the cover a la <iohw.h> -> <hardware> from the TR, see Appendix C)?

Mainly because I want atomics that work on pointers:

    int * px;

and structs:

    struct { short a; short b; } x;
    struct { void* a; void* b; } x2; // only if DWCAS supported

and unions:

    union { char a[3]; int _for_alignment; } x;