Answer:
The typedef struct is as follows:
typedef struct jumper_t {
char name[16];
double tries[N_TRIES];
double best_jump;
double deviation;
} jumper_t;
The declaration of jlist is:
jumper_t jlist[10];
Explanation:
This defines the typedef structure
typedef struct jumper_t {
The following declares the variables as stated in the question
<em> char name[16];
</em>
<em> double tries[N_TRIES];
</em>
<em> double best_jump;
</em>
<em> double deviation;
</em>
}
This ends the typedef definition
jumper_t;
(b) The declaration of array jlist is:
jumper_t jlist[10];
I phone because it stores things hil sends out things to other people
Answer:
This is the complete correct program:
#include <stdio.h>
#include<sys/types.h>
#include<unistd.h>
int value = 128;
int main()
{
pid_t pid;
pid=fork();
if (pid==0) /* child process */
{
value +=8;
return 0; }
else if (pid > 0) {/* parent process */
wait (NULL);
printf ("PARENT: value =%d\n" ,value); /* LINEA */
return 0;
}
}
The output of the LINE A is:
PARENT: value = 128
Explanation:
The fork() function used in the program creates a new process and this process is the child process. The child process is same as the original process having its own address space or memory.
In the child process the value of pid is 0. So the if condition checks if pid==0. Then the child process adds 8 to the value of its variable according to the following statement
value +=8;
Now the original process has value = 128. In else if part the parents process has the value of pid greater than zero and this portion of the program is of the parent process :
else if (pid > 0)
{ wait (NULL);
printf ("PARENT: value =%d\n" ,value);
return 0; }
So the value 128 is printed at the end in the output.
wait(NULL) is used to wait for the child process to terminate so the parent process waits untill child process completes.
So the conclusion is that even if the value of the variable pid is changed in the child process but it will not affect the value in the variable of the parent process.
You must first locate the queries group on the create tab.
This tab contains the commands used to create queries. MS Access will switch
itself to the query design view. A show table dialog box will appear and you will
be able to select a table you would want to run a query on.
