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fix wl_reverse() for empty lists

This commit is contained in:
rlar 2012-07-14 12:39:13 +02:00
parent 5859f1a61d
commit a890a55937
3 changed files with 15 additions and 20 deletions
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9
src/frontend/inp.c
View File

@ -668,11 +668,10 @@ inp_spsource(FILE *fp, bool comfile, char *filename)
} }
/* Now that the deck is loaded, do the commands, if there are any */ /* Now that the deck is loaded, do the commands, if there are any */
if (controls) { controls = wl_reverse(controls);
for (end = wl = wl_reverse(controls); wl; wl = wl->wl_next) for (wl = controls; wl; wl = wl->wl_next)
cp_evloop(wl->wl_word); cp_evloop(wl->wl_word);
wl_free(end); wl_free(controls);
}
} }
/* linked list dbs is used to store the "save" or .save data (defined in breakp2.c), /* linked list dbs is used to store the "save" or .save data (defined in breakp2.c),

10
src/frontend/nutinp.c
View File

@ -166,12 +166,10 @@ inp_nutsource(FILE *fp, bool comfile, char *filename)
} }
/* Now that the deck is loaded, do the commands... */ /* Now that the deck is loaded, do the commands... */
if (controls) { controls = wl_reverse(controls);
for (end = wl = wl_reverse(controls); wl; for (wl = controls; wl; wl = wl->wl_next)
wl = wl->wl_next) (void) cp_evloop(wl->wl_word);
(void) cp_evloop(wl->wl_word); wl_free(controls);
wl_free(end);
}
} }
/* Now reset everything. Pop the control stack, and fix up the IO /* Now reset everything. Pop the control stack, and fix up the IO

16
src/misc/wlist.c
View File

@ -155,16 +155,14 @@ wl_append(wordlist *wlist, wordlist *nwl)
wordlist * wordlist *
wl_reverse(wordlist *wl) wl_reverse(wordlist *wl)
{ {
wordlist *w, *t; while (wl) {
wordlist *t = wl->wl_next;
for (w = wl; ; w = t) { wl->wl_next = wl->wl_prev;
t = w->wl_next; wl->wl_prev = t;
w->wl_next = w->wl_prev; wl = t;
w->wl_prev = t;
if (t == NULL)
break;
} }
return (w);
return wl;
} }