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patch 9.0.0013: reproducing memory access errors can be difficult

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Problem:    Reproducing memory access errors can be difficult.
Solution:   When testing, copy each line to allocated memory, so that valgrind
            can detect accessing memory before and/or after it.  Fix uncovered
            problems.
This commit is contained in:
Bram Moolenaar
2022-06-30 22:13:59 +01:00
parent cdbfc6dbab
commit fa4873ccfc
15 changed files with 119 additions and 33 deletions
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6
src/ops.c
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@@ -1273,6 +1273,8 @@ op_tilde(oparg_T *oap)
netbeans_removed(curbuf, pos.lnum, bd.textcol,
(long)bd.textlen);
// get the line again, it may have been flushed
ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
netbeans_inserted(curbuf, pos.lnum, bd.textcol,
&ptr[bd.textcol], bd.textlen);
}
@@ -1322,6 +1324,8 @@ op_tilde(oparg_T *oap)
ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
count = (int)STRLEN(ptr) - pos.col;
netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
// get the line again, it may have been flushed
ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
netbeans_inserted(curbuf, pos.lnum, pos.col,
&ptr[pos.col], count);
pos.col = 0;
@@ -1330,6 +1334,8 @@ op_tilde(oparg_T *oap)
ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
count = oap->end.col - pos.col + 1;
netbeans_removed(curbuf, pos.lnum, pos.col, (long)count);
// get the line again, it may have been flushed
ptr = ml_get_buf(curbuf, pos.lnum, FALSE);
netbeans_inserted(curbuf, pos.lnum, pos.col,
&ptr[pos.col], count);
}