C program

EMPS intranet

Note

This code has been compiled to show the internal calculations of the addresses of array elements like this: 824.

Hi! Hi! Start main()

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Value and type of last evaluated expression: Address of array element: Address of array elementx: (none)

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Code

 Header...
//
// Error passing an array to a function
//

#define N 4

void printarray (int output[N]);

 int main(){
   ... 

»  int num[N]={1,2,3,4};

»  printarray(numN);// !!!

»  return 0;
}

 void printarray(int output[N]){
   ... 

»  int i;

»  for (i=0; i<N; ++i) {
»    printf("%d\n", outputi);
  }
}

// This program failed to complete properly
// See if you can work out why by
// stepping throught the code.

Memory

printarray()
				132	133	134	135
				i = 134515630
168	169	170	171
output = -4288116055

main()
184	185	186	187	188	189	190	191
num[0] = 1				num[1] = 2
192	193	194	195	196	197	198	199
num[2] = 3				num[3] = 4

NB: the actual memory address of each variable is the
address shown plus 4288116056 (0xFF977558).

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Note

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Code

printarray()

main()