str-reverse.c

/*
 * String Reverse
*/

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

void string_reverse(char*);

int main(void)
{
        char str[100];
        
        printf("word:");
        gets(str);
        printf("-> %s\n", str);
        
        string_reverse(str);
        printf("-> %s\n", str);
        
        return EXIT_SUCCESS;
}
void string_reverse(char* string)
{
        int i, j = strlen(string) / 2, size = strlen(string) - 1;
        char temp;
        
        for (i=0, size; i < j; i++, size--)
        {
                temp = string[i];
                string[i] = string[size];
                string[size] = temp;
        }
}