From 9c2b06637b32742cac11bfd66b1a4e84583c6c2e Mon Sep 17 00:00:00 2001 From: Bram Moolenaar Date: Tue, 1 Sep 2020 19:56:15 +0200 Subject: patch 8.2.1560: using NULL pointers in some code Problem: Using NULL pointers in some code. (James McCoy) Solution: Avoid adding to a NULL pointer. Use byte as unsigned. --- src/fold.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) (limited to 'src/fold.c') diff --git a/src/fold.c b/src/fold.c index 3c106d25cf..d95b46b5b4 100644 --- a/src/fold.c +++ b/src/fold.c @@ -1314,7 +1314,7 @@ setManualFoldWin( if (!foldFind(gap, lnum, &fp)) { // If there is a following fold, continue there next time. - if (fp < (fold_T *)gap->ga_data + gap->ga_len) + if (fp != NULL && fp < (fold_T *)gap->ga_data + gap->ga_len) next = fp->fd_top + off; break; } @@ -2905,18 +2905,20 @@ foldSplit( // any between top and bot, they have been removed by the caller. gap1 = &fp->fd_nested; gap2 = &fp[1].fd_nested; - (void)(foldFind(gap1, bot + 1 - fp->fd_top, &fp2)); - len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); - if (len > 0 && ga_grow(gap2, len) == OK) + if (foldFind(gap1, bot + 1 - fp->fd_top, &fp2)) { - for (idx = 0; idx < len; ++idx) + len = (int)((fold_T *)gap1->ga_data + gap1->ga_len - fp2); + if (len > 0 && ga_grow(gap2, len) == OK) { - ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; - ((fold_T *)gap2->ga_data)[idx].fd_top - -= fp[1].fd_top - fp->fd_top; + for (idx = 0; idx < len; ++idx) + { + ((fold_T *)gap2->ga_data)[idx] = fp2[idx]; + ((fold_T *)gap2->ga_data)[idx].fd_top + -= fp[1].fd_top - fp->fd_top; + } + gap2->ga_len = len; + gap1->ga_len -= len; } - gap2->ga_len = len; - gap1->ga_len -= len; } fp->fd_len = top - fp->fd_top; fold_changed = TRUE; -- cgit v1.2.3