Revprint, C (gcc) - rextester

Revprint

//gcc 4.9.
//Revprint Copyright(C) 2016 Henry Kroll III www.thenerdshow.com
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define strlen(s) ( (s==NULL) ? 0 : strlen(s) )
#define SPLIT(S, TOK, res) for (res=strtok(S,TOK); res; res=strtok(NULL," "))
#define DUP(t, s) char t[strlen(s) + 1]; strcpy(t, s);
#define MDUP(fn, s) strcpy(fn(strlen(s) + 1), s)
#define ALT(fn, s) s = MDUP(fn, s)
#define ForEach(s, t) void *t; for (int _id=0;(t = s[_id]);_id++)
char *s[] = {
"---------- Ice and Fire ------------",
"                                    ",
"fire, in end will world the say Some",
"ice. in say Some                    ",
"desire of tasted I've what From     ",
"fire. favor who those with hold I   ",
"                                    ",
"... elided paragraph last ...       ",
"                                    ",
"Frost Robert -----------------------",
NULL };
void revprint (char *p, int max_tokens) {
    char *result, *result_array[max_tokens];
    DUP(s, p);
    /* tokenize */
    int results = 0;
    SPLIT(s, " ", result) {
        result_array[results++] = result;
        if (results >= max_tokens) break;
    }    /* reverse */
    while (results--) {
        printf ("%s ", result_array[results]);
    } puts ("");
} int main (void) {
    ForEach(s, line) {
        revprint (line, 15);
    }
    return 0;
}


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