stdio synching and startup code (was Re: segfaults after loading shared libstdc++)
Sun Jan 14 11:52:00 GMT 2001
>>>>> "Artem" == Artem Khodush <firstname.lastname@example.org> writes:
> Predefined streams constructors are now called from ios.cc.
> basic_ios::Init::Init() is called from every user file that includes
> <iostream>. There is no way to ensure that they will always be called in
> a particular order, so when someone somehow manages to build a program
> that calls basic_ios::Init::Init before the cin constructor, that
> constructor (cin(NULL)) will screw things up. The only way to (portably)
> cope with this is to make sure that all predefined streams constructors
> are really no-ops (which was proposed by the guy who reported this bug).
Agreed. This is the point of Init.
And, BTW, of init_priority--which we might want to use on platforms that
support it, to avoid the overhead of imposing static constructors on all
object files that use iostream.
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