C语言：两种指针分配方式之间的区别

Question

int a[10];
int *p = a; //way 1
int *p1 = &a[0]; //way 2

Could you tell me the differences between two ways above?

Answer 1

There is no difference. Both assign the address of the first element to the pointer p and p1 respectively.

In the first case, a is automatically converted to the address of the first element. In the second case it uses the address of the first element explicitly.