In ISO C 23,
- the type 'once_flag',
- the macro ONCE_FLAG_INIT,
- the declaration of function 'call_once'
are all available from , not only from .
1) This makes it clear that often call_once is needed in an application
without also needing mutexes. For this reason, I'm moving the 'call_once
On Sat, Mar 25, 2023 at 5:05 PM Bruno Haible wrote:
>
> In ISO C 23,
> - the type 'once_flag',
> - the macro ONCE_FLAG_INIT,
> - the declaration of function 'call_once'
> are all available from , not only from .
>
> 1) This makes it clear that often call_once is needed in an application
> wi
effrey Walton wrote:
> Be careful of call_once.
>
> Several years ago I cut over to C++11's call_once. The problem was, it
> only worked reliably on 32-bit and 64-bit Intel platforms. It was a
> disaster on Aarch64, PowerPC and Sparc. I had to back it out.
>
> The problems happened back when GCC
