[Boost-users] [detail] atomic_count operator++ returns different types

From: Doug Mahlum (DMahlum_at_[hidden])
Date: 2008-07-24 14:05:20

Why does the atomic_count ++ operator return a "long" for the
win32,solaris and 

sync compilers,  but returns "void" for all gcc compilers?  The --
operator returns a 

"long" in all cases, so this would appear to be an annoying, anomalous
behavior.   

But hopefully a rational explanation exists.

Also, if it's the value of the ++ that is wanted, two threads could
return the same 

value of this atomic counter, since another call is required to obtain
it for the gcc case.

 

Thank you,

Doug