Mercurial > vim

comparison src/edit.c @ 29340:fba9e366ced4 v9.0.0013

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
patch 9.0.0013: reproducing memory access errors can be difficult Commit: https://github.com/vim/vim/commit/fa4873ccfc10e0f278dc46f39d00136fab059b19 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 30 22:13:59 2022 +0100 patch 9.0.0013: reproducing memory access errors can be difficult 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.
author Bram Moolenaar <Bram@vim.org>
date Thu, 30 Jun 2022 23:15:03 +0200
parents 3e5166df3004
children 057c26b5c33a
comparison
equal deleted inserted replaced
29339:a023e3008ae3 29340:fba9e366ced4
5011 if (col > 0) 5011 if (col > 0)
5012 mch_memmove(newp, ptr - col, col); 5012 mch_memmove(newp, ptr - col, col);
5013 mch_memmove(newp + col, ptr + i, 5013 mch_memmove(newp + col, ptr + i,
5014 curbuf->b_ml.ml_line_len - col - i); 5014 curbuf->b_ml.ml_line_len - col - i);
5015 5015
5016 if (curbuf->b_ml.ml_flags & ML_LINE_DIRTY) 5016 if (curbuf->b_ml.ml_flags & (ML_LINE_DIRTY | ML_ALLOCATED))
5017 vim_free(curbuf->b_ml.ml_line_ptr); 5017 vim_free(curbuf->b_ml.ml_line_ptr);
5018 curbuf->b_ml.ml_line_ptr = newp; 5018 curbuf->b_ml.ml_line_ptr = newp;
5019 curbuf->b_ml.ml_line_len -= i; 5019 curbuf->b_ml.ml_line_len -= i;
5020 curbuf->b_ml.ml_flags = 5020 curbuf->b_ml.ml_flags =
5021 (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY; 5021 (curbuf->b_ml.ml_flags | ML_LINE_DIRTY) & ~ML_EMPTY;
5230 vim_beep(BO_COPY); 5230 vim_beep(BO_COPY);
5231 return NUL; 5231 return NUL;
5232 } 5232 }
5233 5233
5234 // try to advance to the cursor column 5234 // try to advance to the cursor column
5235 validate_virtcol();
5235 temp = 0; 5236 temp = 0;
5236 line = ptr = ml_get(lnum); 5237 line = ptr = ml_get(lnum);
5237 prev_ptr = ptr; 5238 prev_ptr = ptr;
5238 validate_virtcol();
5239 while ((colnr_T)temp < curwin->w_virtcol && *ptr != NUL) 5239 while ((colnr_T)temp < curwin->w_virtcol && *ptr != NUL)
5240 { 5240 {
5241 prev_ptr = ptr; 5241 prev_ptr = ptr;
5242 temp += lbr_chartabsize_adv(line, &ptr, (colnr_T)temp); 5242 temp += lbr_chartabsize_adv(line, &ptr, (colnr_T)temp);
5243 } 5243 }