Andrey Semashev wrote:
Anthony Williams wrote:
The question was about a class static, which is global, and thus safe.
Is it? If my reading of 9.4.2/7 and 3.6.2/3 is correct, static data members are permitted to be dynamically initialized after entering "main".
I think you are right. Pretty much only global static PODs are (must be?) statically initialized. const local PODs can also be statically initialized, if I remember correctly. In some work where I was helping from afar (read: not my fault!), we had to be sure to explicitly poke all the tss_ptrs when starting the program. If not, we had crashes when running in multiple threads for this reason. It was on a non-mainstream C++ platform though so I'm sure the people who wrote that compiler interpreted the standard as was convenient for them! This was in a much older Boost version though. My very humble suggestion is to use a call_once based singleton or initialize everything before starting any threads. -- Sohail Somani http://uint32t.blogspot.com