Miscellany

#include <malloc.h>/* ./a.out && echo $? */int main(void){char **A;int i;A = (char **)malloc(10 * sizeof(char *));if(!A) return 1;for(i = 0; i < 10; i++){  *(A + i) = (char *) malloc(10);  if(!*(A + i)) return 2;}/******/A = (char **)realloc(A, 15 * sizeof(char *));if(!A) return 3;for(i = 10; i < 15; i++){  *(A + i) = (char *) malloc(10);  if(!*(A + i)) return 4;}/******/for (i = 0; i < 15; i++) free(*(A + i));free(A);return 123; /* everything ok */}