string - C++ simple sizeof difference between char array and char pointer

Question

char * test = "test";
cout << sizeof(test);


char test2[] = "test";
cout << sizeof(test2);

Running this on visual studio 2010, why is the output 45?
Shouldn't test be a string literal and the sizeof a string literal be the number of character elements in the string literal including the terminating null character?

Answer 1

test is a pointer to a string literal, not a string literal (a char[]):

• the sizeof(char*) is 4, relating to test
• the sizeof(char[5]) is 5, relating to test2[]

hence 45 is the output.