Reversing a String in Place

#include <stdio.h>

#include <string.h>

void rev(char *s);

main()

{

char str[101];

scanf("%s", str);

rev(str);

printf("%s", str);

}

void rev(char *s)

{

char t, *e;

e = s + strlen(s) -1;

while(s < e) {

t = *s;

*s++ = *e;

*e-- = t;

}

}

This is program pg352.c

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