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From: Anthony Williams (anthony_w.geo_at_[hidden])
Date: 2005-09-08 16:47:10

Alexander Terekhov <terekhov_at_[hidden]> writes:

> Anthony Williams wrote:
>> However, our once_flag can store a result of a user-defined type, which may
>> therefore require proper destruction, so that it can notify other processes,
>> send network packets, write to a file, or whatever; this therefore needs
>> dealing with somehow before process termination.
> User would then call _destroy() or _reset() (the later is likely
> to be called multiple times). I won't tell you "how". Trade secret.

Don't be such a tease!

class X
    void do_something();

X get_X();

void f()
    static once_flag once;
    // how do we clean up the X associated with "once", and release it's
    // resource?
    // We can't sensibly call once_destroy() here.


Anthony Williams
Software Developer
Just Software Solutions Ltd

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