Doubt pointer

Question

What will be value inside an unintialized pointer eg case1:

main(){

Int *p;//local

}

Or case2:

Int *p;// global

Main(){

}

Comments

https://www.quora.com/Is-the-null-pointer-same-as-an-uninitialized-pointer

but online compilers treating them equal, ( i don't believe online compilers, it's my opinion )