linkage of object declared outside main

[Cplusplus]

as C++ defaults to external linkage for non-consts and non-static(right?):

Qn) why is it then : a object declared (*without* static keyword)outside
main() and outside all functions , automatically considered a static
object ?. doesn't static mean its internal linkage?
accding me if u define a object like this then A should be external linkage.

Obj A('a'); // Global

int main()
{
blah;
}

 

[John Harrison]

as C++ defaults to external linkage for non-consts and non-static(right?):

Qn) why is it then : a object declared (*without* static keyword)outside
main() and outside all functions , automatically considered a static
object ?. doesn't static mean its internal linkage?
accding me if u define a object like this then A should be external linkage.

Obj A('a'); // Global

int main()
{
blah;
}

I think you are confusing the many meanings of the word static in C++.

Object A has static storage duration but external linkage. If you declared
it with the keyword static then it would still have static storage duration
but internal linkage.

john