c++ - Memory Allocation char* and char[]

Question

What is the difference between these two in terms of memory allocation.

char *p1 = "hello"; 
char p2[] = "hello";

Answer 1

The first one creates a pointer variable (four or eight bytes of storage depending on the platform) and stores a location of a string literal there, The second one creates an array of six characters (including zero string terminator byte) and copies the literal there.

You should get a compiler warning on the first line since the literal is const.