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[Steve Litt]

On Thursday 27 November 2008 08:29:40 am Kevin Hunter wrote:
> At 9:16am -0400 on Wed, 26 Nov 2008, Michael Peters wrote:
> > Had to break out a little perl -le 'print scalar reverse q()' to keep my
> > head from hurtin'
>
> Heh.  I had just deciphered the first line ("Just to contribute ..."),
> before I kicked myself:
>
> $ rev
> sdrawkcab enil yb depyt era segassem lla erehw
> stsop rorrim nwod edispU
> daerht siht fo noitaderged eht ot etubirtnoc ot tsuJ

Dohhhhhhh!

I didn't know about the rev command, and about a month ago I needed that 
functionality and therefore wrote my own:

#include <stdio.h>
#include <string.h>
#include <malloc.h>
#include <assert.h>

int main(int argc, char *argv[]) {
        int ss;
        int stringlength = 0;
        for (ss=1; ss < argc; ss++) {
                // printf("Arg %d is %s\n", ss, argv[ss]);
                stringlength += (strlen(argv[ss]) + 1);
        }
        char * src = malloc((stringlength+1) * sizeof(char));
        assert (src != NULL);
        char * dst = malloc((stringlength+1) * sizeof(char));
        assert (dst != NULL);
        *src='\0';
        for (ss=1; ss < argc; ss++) {
                strcat(src, argv[ss]);
                strcat(src, " ");
        }
        src[strlen(src)-1] = '\0';
        stringlength = strlen(src);
        //printf("Src=>%s<=\n", src);

        // Reverse into dst
        for(ss=0; ss < stringlength; ss++) {
                dst[stringlength-ss-1] = src[ss];
        }
        dst[stringlength]='\0';
        //printf("Src=>%s<=\n", src);
        printf("Dst=>%s<=\n", dst);

        // Free malloc'ed stuff
        free(dst);
        free(src);
        return 0;
}