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Create a Shared Memory and print the id of the shared memory - Parallel Processing C Program

#include<sys/types.h>
#include<sys/ipc.h>
#include<sys/shm.h>

int main()
{
        int shmid;
        key_t key=0x1000;

        shmid=shmget(key,10,IPC_CREAT|0666);
        if(shmid<0)
        {
                printf("unable to create shared memory");
        }

        printf("shmid : %d\n",shmid);

        key=0x1010;

        shmid=shmget(key,10,IPC_CREAT|0666);

        printf("shmid : %d\n",shmid);

        shmid=shmget(IPC_PRIVATE,10,IPC_CREAT|0666);
}
Output:[04mca8@LINTEL 04mca8]$ gcc shprog.c
[04mca8@LINTEL 04mca8]$ ./a.out
shmid : 98305
shmid : 131074

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