#include <stdio.h> int main(int argc, char *argv[]) { char a, *pc, c[9]; int i, *pk, k[9]; a='...
#include <stdio.h>
int main(int argc, char *argv[])
{
char a, *pc, c[9];
int i, *pk, k[9];
a='z';
pc=&(c[8]);
pk=&(k[0]);
for (i=0; i<9; i++)
{
*pc=a-(char)i;
pc--;
*pk=(int)a-i;
pk++;
}
return 0;
}//end of main
Answer the below questions with the above code
- Write out the memory map for the above C code in the following table. For array variables, list the address range for the entire array. Assume the memory address starts from 100, that is, the address for a is 100. Suppose sizeof(char)=1, sizeof(int)=4 and the size of a memory address (a pointer) is 8 bytes. You may assume there is no gap in memory between the variables. (18 pts)
|
Variable |
Start address |
End address |
|
a |
||
|
Pc |
||
|
c |
||
|
i |
||
|
pk |
||
|
K |
- Additionally, show values of the variables in the following table at the end of execution of the for loop before the main function returns. (For the two array variables c and k, list the contents of all array elements.) (18 pts)
|
Variable |
Value |
|
a |
|
|
pc |
Use an expression involving c to represent pc’s value |
|
c |
list the contents of the entire array |
|
i |
|
|
pk |
Use an expression involving k to represent pk’s value |
|
k |
list the contents of the entire array |
- True or false? pc and pk have the same value just before return. (2 pts)
- True or false? The two array c and k contain the same integral values just before return. (2 pts)
Homework Answers
C.False
D. True
Add Answer to:
#include <stdio.h> int main(int argc, char *argv[]) { char a, *pc, c[9]; int i, *pk, k[9]; a='...
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#include <stdlib.h>
#include <stdio.h>
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int main()
{
int* array;
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#include <stdio.h>
int main(int argc, char *argv[]) {
printf("Hello world!\n");
return 0;
}
syscall-hello.c
#include <unistd.h>
#include <sys/syscall.h>
char *buf = "Hello world!\n";
int main(int argc, char *argv) {
size_t result;
/* "man 2 write" to see arguments to write syscall */
result = syscall(SYS_write, 1, buf, 13);
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#include <stdlib.h>
#include <stdio.h>
#include "libsort.h"
int main()
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float median;
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scanf("%d", &size);
array = (int*) malloc(size *
sizeof(int));
printf("Enter %d integers:\n", size);
for (c = 0; c < size; c++)
scanf("%d",
&array[c]);
sort(array, size);
printf("Array sorted in ascending
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for (c = 0; c < size; c++)
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array[c]);
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