hi people i have been teaching myself C for the last few months and have recently moved onto ICP shared memory. I have with aid developed some simple code that prints out some chars i then wanted to do the same with int but cannont seem to get it to work. producer Code: #include <sys/types.h> #include <sys/ipc.h> #include <sys/shm.h> #include <stdio.h> #define SHMSZ 27 int main() { int c; int shmid; key_t key; int *shm, *s; key = 5678; if ((shmid = shmget(key, SHMSZ, IPC_CREAT | 0666)) < 0) { perror("shmget"); return(1); } if ((shm = shmat(shmid, NULL, 0)) == (int *) -1) { perror("shmat"); return(1); } s = shm; for (c = 10; c <= 20; c++) *s++ = c; *s = -1; while (*shm != '*') sleep(1); return(0); } consumer Code: #include <sys/types.h> #include <sys/ipc.h> #include <sys/shm.h> #include <stdio.h> #define SHMSZ 27 int main() { int shmid; key_t key; char *shm, *s; key = 5678; if ((shmid = shmget(key, SHMSZ, 0666)) < 0) { perror("shmget"); return(1); } if ((shm = shmat(shmid, NULL, 0)) == (char *) -1) { perror("shmat"); return(1); } for (s = shm; *s != 0; s++) putchar(*s); putchar('\n'); *shm = '*'; return(0); } any ideas?