I see there is a problem with the memory segment size that you allocate, and then try to use memory beyond that size. The shmget statement creates segment of size sizeof(buffer[2]) - two problems here
a) array buffer is declared buffer[2], so there are two elements in it, buffer[0] and buffer[1],
b) I guess you meant t oallocate segment to accomodate array buffer - just say sizeof(buffer) in your shmget statement
Then again later you are placing result of computation into buffer[2] - same problem as above.
Remember in C array element counts start with 0, so any array A(N) has element A[0], A[1], ... , A[N-1], there is no A[N]
yes but also if i use buffer[3] instead buffer[2], return same error, i have already thought that was an error of memory segment, but if i try all possibilities.
if i use IPC_CREAT i've same error and also if i use nothing i've same error. why?
---------- Post updated at 03:37 AM ---------- Previous update was at 02:21 AM ----------
i've change dimension of buffer...and i do a test for every system call and now it gives error on shmdt system call, it says "Invalid Argument"
why?
Hello.
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Dear Reader,
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