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patch 7.4.812

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Problem:    Gcc sanitizer complains about using a NULL pointer to memmove().
Solution:   Only call memmove when there is something to move. (Vittorio
            Zecca)
This commit is contained in:
Bram Moolenaar
2015-08-08 18:23:46 +02:00
parent 204b93f958
commit fbd302ff38
2 changed files with 4 additions and 1 deletions
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3
src/memline.c
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@@ -3834,7 +3834,8 @@ ml_add_stack(buf)
(buf->b_ml.ml_stack_size + STACK_INCR));
if (newstack == NULL)
return -1;
mch_memmove(newstack, buf->b_ml.ml_stack,
if (top > 0)
mch_memmove(newstack, buf->b_ml.ml_stack,
(size_t)top * sizeof(infoptr_T));
vim_free(buf->b_ml.ml_stack);
buf->b_ml.ml_stack = newstack;