AMDG Andreas Huber <ahd6974-spamgroupstrap <at> yahoo.com> writes:
I should have been clearer. The standard sais that *initializing* a POD is not a problem because that is done before any threads have a chance to race against each other (typically when the binary is loaded into memory). <snip>
static int & GetPodInstance() { static int podInstance = 42; return podInstance; } <snip> When multiple threads are present, there's no race condition when more than one of them call GetPodInstance(). Clearly there is one when they call GetNonPodInstance() because NonPod::NonPod() will non run before the first call...
GetPodInstance() is probably safe, but the standard does not require it. "A local object of POD type (3.9) with static storage duration initialized with constant-expressions is initialized before its block is first entered." (6.7/4) In Christ, Steven Watanabe