hi all
plz explain me with syntax "how to pass pointer to a function or pointers to a function " . plz tell me if there any big tutorial which can solve my problem providing a deep knowledge about it .
and one more probim :
what is incorrect int following program. this is a program to search a num in an array whose dimension and numbers are specified by user it is not running properly



#include<stdio.h>
int main()
{
int **a,r,c,i,j,re;
printf("enter dimensions of array rows and columns ");
scanf("%d%d",&r,&c);
a = (int**)malloc(r*sizeof(int*));
for(i = 0;i <=r-1;i++)
{a[i] = (int*)malloc(c*sizeof(int));
if(a == NULL||a[i] == NULL)
printf("memory not allocated ");}
for(i=0;i<=r-1;i++)
{
for(j=0;j<=c-1;j++)
{printf("enter element a_%d%d\t",i,j);
scanf("%d",&a[i][j]);
printf("%s\n",&a[i][j]);
}
printf("\n");
}
re = func(a,r,c);
if(re == 1)
printf("1");
else
printf("0");
return(0);
}
func(int *ptr,int row,int col)
{
int i,j,num,*k,count=0;
printf("enter number ");
scanf("%d",&num);
for(i=0;i<=row-1;i++)
{
for(j=0;j<=col-1;j++)
{
k = (ptr + i*col + j);
if(num ==*k);
{
printf("num = %d\tk =%d %d\t*k = %d ",num,k,(ptr + i*col + j),*k);
printf("\nnum %d found in %d th column of %d th row at position%d\n",num,i,j,i*col+j+1);
count+=1;
}
}
}
if(count!=0)
return(1);
else
return(0);