reverse array using array and pointers

[praveen narayanan CSE]

#include<stdio.h>

void rev_array(int* a,int n){

int* b = a+n-1;

while(b>a){

swap(a,b);

a=a+1;

b=b-1;

}

printf("%d",a);

}

void swao(int* ptra,int* ptrb)

{

int t=*ptra;

*ptra=*ptrb;

*ptrb=t;

}

int main(){

int c[]={1,2,3,4};

int n=4;

rev_array(c,n);

}

sir I write this code for reverse array but this code  showing error please correct my code

please.