配列は意外なところもある

#include 
int a[] = {1, 2, 3};

char b[] = {1, 2, 3};
main()

{

  printf("a = %x, &a = %x, sizeof(a) = %d\n", a, &a, sizeof(a));

  printf("a[0] = %x, &a[0] = %x, sizeof(a[0]) = %d\n", a[0], &a[0], sizeof(a[0]));

  printf("b = %x, &b = %x, sizeof(b) = %d\n", b, &b, sizeof(b));

  printf("b[0] = %x, &b[0] = %x, sizeof(b[0]) = %d\n", b[0], &b[0], sizeof(b[0]));
  int *p;  char *q;

  printf("p = a; q = b;\n");

  p = a; q = b;

  printf("p = %x, &p = %x, sizeof(p) = %d\n", p, &p, sizeof(p));

  printf("p[0] = %x, &p[0] = %x, sizeof(p[0]) = %d\n", p[0], &p[0], sizeof(p[0]));

  printf("q = %x, &q = %x, sizeof(q) = %d\n", q, &q, sizeof(q));

  printf("q[0] = %x, &q[0] = %x, sizeof(q[0]) = %d\n", q[0], &q[0], sizeof(q[0]));

}

#include 

#include 
char a[][5] = {

  "abcd",

  "uvwx"

};

char *b[] = {

  "abcd",

  "uvwx"

};
char *s = "abcdef";
main()

{

  printf("a[0]= %s, a[1] = %s\n", a[0], a[1]);

  printf("b[0]= %s, b[1] = %s\n", b[0], b[1]);

  printf("sizeof(a) = %d, sizeof(b) = %d\n", sizeof(a), sizeof(b));

  printf("sizeof(a[0]) = %d, sizeof(b[0]) = %d\n", sizeof(a[0]), sizeof(b[0]));

  printf("strlen(a[0]) = %d, strlen(b[0]) = %d\n", strlen(a[0]), strlen(b[0]));

  printf("sizeof(s) = %d, strlen(s) = %d\n", sizeof(s), strlen(s));

}