Thread: Compiling Warning

Can someone please help me? When I compile the code, the line where I call the function gives me a warning, saying: 'Passing argument 1 from incompatible pointer type.' I have no idea how to fix it!!

Code:

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


#define N 3



int find_inner_product (int *a,int *b,int size)
	
{int inner_product=0,i=0;
	for (i=0;i<size;i++)
		
		{inner_product+=*(a+i)*(*b+i);}
		
	return inner_product;} /*function to do the inner product*/

int i=0,j=0,row_number,column,inner_product;

int main()
{
	int matrix1[N][N],matrix2[N][N];
	
	
	printf("Please enter the values of the 3x3 Matrix: ");
	
	for	( i = 0; i < N; i++ ) 
		{for( j = 0;  j< N; j++ )
		
		{scanf("%d", &matrix1[i][j]);}
		} /*this for loop goes through every number and stores it in the first matrix*/
	
	
	printf("\nPlease enter the values of the second 3x3 Matrix: ");
	
	for	( i = 0; i < N; i++ ) 
		{for( j = 0;  j< N; j++ )
		
		{scanf("%d", &matrix2[i][j]);}
		} /*this for loop goes through every number and stores it in the second matrix*/

	
	find_inner_product(matrix1, matrix2, N)
	printf("%d", inner_product);
	
	
}


}

Code:

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


#define N 3



int find_inner_product (int *a,int *b,int size)
	
{int inner_product=0,i=0;
	for (i=0;i<size;i++)
		
		{inner_product+=*(a+i)*(*b+i);}
		
	return inner_product;} /*function to do the inner product*/

int i=0,j=0,row_number,column,inner_product;    <---- move this inside main
int main()           <--- the correct form is ... int main (void)
{
	int matrix1[N][N],matrix2[N][N];
	
	
	printf("Please enter the values of the 3x3 Matrix: ");
	
	for	( i = 0; i < N; i++ ) 
		{for( j = 0;  j< N; j++ )
		
		{scanf("%d", &matrix1[i][j]);}
		} /*this for loop goes through every number and stores it in the first matrix*/
	
	
	printf("\nPlease enter the values of the second 3x3 Matrix: ");
	
	for	( i = 0; i < N; i++ ) 
		{for( j = 0;  j< N; j++ )
		
		{scanf("%d", &matrix2[i][j]);}
		} /*this for loop goes through every number and stores it in the second matrix*/

	
	inner_product = find_inner_product(matrix1, matrix2, N); 	
             printf("%d", inner_product);
	
	return 0;   <--- main always returns an integer value 
}


}

[/QUOTE]

Im still not getting the answer I should be. I need the dot product of the first line of the matrix and its not correct with my current code

Nevermind, problem solved