C++ assigning arrays to eachother; type int* = type int works but not int = int*? -

i have question:

why throw error (cannot convert int* int[5])

int static_array[5];  int *dynamic_array;  dynamic_array = new int[5]; static_array = dynamic_array;

while works fine?

int static_array[5];  int *dynamic_array;  dynamic_array = new int[5]; dynamic_array = static_array; //this line changed

i guessing types int can converted int* compiler? why couldn't int converted int* compiler well?

anyone can provide actual explanation?

thanks!

this one:

int static_array[5];  int *dynamic_array = new int[5]; // 1.  dynamic_array = static_array;    // 2.

dynamically allocates array , stores address of first element in pointer dynamic_array
overwrites address address of first element of static_array

but one:

int static_array[5];  int *dynamic_array = new int[5];  static_array = dynamic_array;

attempts initialize array using address (thus compiler gives error invalid pointer array conversion).

so why first 1 works?
because static array (on right side) decays pointer. can not work other way, there no guarantee pointer points array.

Sp