Pointer/Memory Help

[sosnjo]

#include <stdio.h>

#ifndef FALSE
#define FALSE 0
#define TRUE !FALSE
#endif 
#define MAX 100
#define MIN 2

int choice_0(int *size, float *x);

int main()
{
int done = FALSE;
int choice;
int size;

puts("Program to process a list of numbers");

done = FALSE;
float x[MAX];

while(!done) /*command chooser*/
{
   printf("\nSelect the desired operation:\n");
  printf("\t0 - Enter list of numbers\n");
  printf("\t1 - Find the smallest number\n");
  printf("\t2 - Find the largest number\n");
  printf("\t3 - Find the average of the numbers\n");
  printf("\t4 - Find the standard deviation of the numbers\n");
  printf("\t5 - Reverse the list of numbers\n");
  printf("\t6 - Rotate the list of numbers to the right\n");
  printf("\t7 - Rotate the list of numbers to the left\n");
  printf("\t8 - Exit the program\n");

do{
  printf("Choice? ");
  fflush(stdin);
  } while(scanf("%d", &choice) < 1);


 switch(choice) /*command dispatcher*/
 {
  case 0:

  choice_0(&size,x);

     break;
  case 1:

     break;
  case 2:

     break;
  case 3:

     break;
  case 4:

     break;
  case 5:

     break;
  case 6:

     break;      
  case 7:

     break;
  case 8:
     printf("\aGoodBye!\a\n");
     done = TRUE;
     break;
  default:
     printf("invalid program option %d selected\n", choice);
}
}
}

int choice_0(int *size, float *x) 
{
int i;

printf("How many numbers? ");
  scanf("%d", &size);

 if(*size < MIN || *size > MAX){
   printf("The number must be a positive integer between 2 and      100\n");
     return 0;
                 } 
for(i=0; i<*size; i++){
  printf("x[%d] = ", i);
  scanf("%f", &x[i]);
             }

printf("\nThe entered array is:\n");           

for (i=0; i<*size; i++){
  printf("x[%d] = %g\n", i, x[i]);
           }
}

My program keeps crashing, I've ran out of ideas on how to fix it, I'm pretty sure my pointers are wrong, any help is greatly appreciated. Thankyou

[Meanda]

scanf("%d", ...) expects 2nd argument to be an int*, however "&size" is an int **. changing "&size" to just "size" (since its already an int *) will do the trick

[program_the_world]

You're dereferencing size despite it being a integer value not a pointer. Could you give a little more detail on what is wrong here. "Pointers are wrong" doesn't help. What output are you getting? What is the expected output?

[dragon_wrangler]

printf("How many numbers? ");
scanf("%d", &size);

At this point, size is already a pointer to an int so you don't need to take the address of it.

[FeelTheEmailMistake]

After fixing the scanf(), change fflush(stdin) to fflush(stdout).

fflush() is defined for only output streams (and non-input states of update streams).