Help with error

[bigparker]

When compiling I get these errors:

sort.c:21error: expected â=â, â,â, â;â, âasmâ or â__attribute__â before âintâ
sort.c:46: error: expected â=â, â,â, â;â, âasmâ or â__attribute__â before â{â to          ken

I was thinking it had something to do with the way I passed my dynamically allocated array to my function, but i cant think of any other way to do it. ive tried using *a, and *a[]...any suggestions?

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


void quick_sort(int **a, int left, int right)
void swap(int **a, int i, int j)



int main (){
int number = 0;
printf("How many entries in the sort array?\n");
scanf( "%d", &number);


int *a = malloc(sizeof(int)*number);

	int j = 0;
	for( j = 0; j<number; j++){
		a[j] = random()%100;
		printf("%d\n", a[j]);
	}

	quick_sort(a, 0, number);
	int d;
	for(d=0; d<number;d++){
		printf("%d\n", a[d]);
	
	}
	
	
return 0;
}

void swap(int **a, int i, int j){
	int temp;
	
	temp = a[i];
	a[j] = a[i];
	a[j] = temp;

}

void insertion_sort(int **a, int n) {
  int k;
  for (k = 1; k < n; ++k) {
    int key = a[k];
    int i = k - 1;
    while ((i >= 0) && (key < a[i])) {
      a[i + 1] = a[i];
      --i;
    }
    a[i + 1] = key;
  }
}

[bithub]

void quick_sort(int **a, int left, int right)
void swap(int **a, int i, int j)

Forward declarations need a semicolon at the end;

EDIT: Also, why do those methods take a double pointer? It seems like you just need to pass the pointer here.

[tabstop]

Which line is line 21 and which line is line 46? By my count, line 21 is "a[j] = random()%100;", which doesn't have an int token on it.

[bigparker]

line 21 is at "int main(){}" 
line 46 is "void swap(int *, int, int)"

and those are double pointers because I thought since my dynamic array was already a pointer, I needed a pointer to the array in the functions in which I call it...

[bithub]

and those are double pointers because I thought since my dynamic array was already a pointer, I needed a pointer to the array in the functions in which I call it...

No, you only need to pass a double pointer if you intend for the function to modify the pointer itself. If you are only modifying the data in the array, then just pass the pointer.

[tabstop]

So yes your prototypes need semicolons.

And you only need to pass a pointer to your dynamic array if you intend to completely blow your dynamic array away and create a new one. (I.e., you need your pointer to point somewhere else.) If you're just going to move things around in the array you already have, then there's no need for an extra star. (Your dynamic array is an int *, so the ints that are pointed to can be changed by a function, but not the value of the pointer itself.)

[bigparker]

No, you only need to pass a double pointer if you intend for the function to modify the pointer itself. If you are only modifying the data in the array, then just pass the pointer.

So yes your prototypes need semicolons.

And you only need to pass a pointer to your dynamic array if you intend to completely blow your dynamic array away and create a new one. (I.e., you need your pointer to point somewhere else.) If you're just going to move things around in the array you already have, then there's no need for an extra star. (Your dynamic array is an int *, so the ints that are pointed to can be changed by a function, but not the value of the pointer itself.)

oh ok...i understand. thanks guys, that helped me out alot...its compiling fine now.