Write the REVERSE function which reverses the character order of a string.

#include <stdio.h>
#include <conio.h>

int length(char str[])
{
	int i = 0;
	while (str[i])
		i++;
	return i;
}

void REVERSE(char str[])
{
	int I, J;
	char aux;
	J = length(str) - 1;
	for (I = 0; I < J; I++, J--)
	{
		aux = str[I];
		str[I] = str[J];
		str[J] = aux;
	}

}

void main()
{
	char str[100];
	printf("Enter a string: ");
	gets(str);
	REVERSE(str);
	puts(str);

	getch();
}