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+To: vim_dev@googlegroups.com
+Subject: Patch 7.4.783
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.4.783
+Problem: copy_chars() and copy_spaces() are inefficient.
+Solution: Use memset() instead. (Dominique Pelle)
+Files: src/ex_getln.c, src/misc2.c, src/ops.c, src/proto/misc2.pro,
+ src/screen.c
+
+
+*** ../vim-7.4.782/src/ex_getln.c 2015-07-17 13:03:42.100357542 +0200
+--- src/ex_getln.c 2015-07-17 13:11:12.608078272 +0200
+***************
+*** 250,256 ****
+ /* autoindent for :insert and :append */
+ if (firstc <= 0)
+ {
+! copy_spaces(ccline.cmdbuff, indent);
+ ccline.cmdbuff[indent] = NUL;
+ ccline.cmdpos = indent;
+ ccline.cmdspos = indent;
+--- 250,256 ----
+ /* autoindent for :insert and :append */
+ if (firstc <= 0)
+ {
+! vim_memset(ccline.cmdbuff, ' ', indent);
+ ccline.cmdbuff[indent] = NUL;
+ ccline.cmdpos = indent;
+ ccline.cmdspos = indent;
+*** ../vim-7.4.782/src/misc2.c 2015-07-17 13:03:42.104357503 +0200
+--- src/misc2.c 2015-07-17 13:11:12.608078272 +0200
+***************
+*** 1600,1639 ****
+ #endif
+
+ /*
+- * copy a space a number of times
+- */
+- void
+- copy_spaces(ptr, count)
+- char_u *ptr;
+- size_t count;
+- {
+- size_t i = count;
+- char_u *p = ptr;
+-
+- while (i--)
+- *p++ = ' ';
+- }
+-
+- #if defined(FEAT_VISUALEXTRA) || defined(PROTO)
+- /*
+- * Copy a character a number of times.
+- * Does not work for multi-byte characters!
+- */
+- void
+- copy_chars(ptr, count, c)
+- char_u *ptr;
+- size_t count;
+- int c;
+- {
+- size_t i = count;
+- char_u *p = ptr;
+-
+- while (i--)
+- *p++ = c;
+- }
+- #endif
+-
+- /*
+ * delete spaces at the end of a string
+ */
+ void
+--- 1600,1605 ----
+*** ../vim-7.4.782/src/ops.c 2015-07-17 13:03:42.108357465 +0200
+--- src/ops.c 2015-07-17 13:11:12.612078233 +0200
+***************
+*** 442,449 ****
+ return;
+ vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + len));
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+! copy_chars(newp + bd.textcol, (size_t)i, TAB);
+! copy_spaces(newp + bd.textcol + i, (size_t)j);
+ /* the end */
+ mch_memmove(newp + bd.textcol + i + j, bd.textstart, (size_t)len);
+ }
+--- 442,449 ----
+ return;
+ vim_memset(newp, NUL, (size_t)(bd.textcol + i + j + len));
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+! vim_memset(newp + bd.textcol, TAB, (size_t)i);
+! vim_memset(newp + bd.textcol + i, ' ', (size_t)j);
+ /* the end */
+ mch_memmove(newp + bd.textcol + i + j, bd.textstart, (size_t)len);
+ }
+***************
+*** 535,541 ****
+ if (newp == NULL)
+ return;
+ mch_memmove(newp, oldp, (size_t)(verbatim_copy_end - oldp));
+! copy_spaces(newp + (verbatim_copy_end - oldp), (size_t)fill);
+ STRMOVE(newp + (verbatim_copy_end - oldp) + fill, non_white);
+ }
+ /* replace the line */
+--- 535,541 ----
+ if (newp == NULL)
+ return;
+ mch_memmove(newp, oldp, (size_t)(verbatim_copy_end - oldp));
+! vim_memset(newp + (verbatim_copy_end - oldp), ' ', (size_t)fill);
+ STRMOVE(newp + (verbatim_copy_end - oldp) + fill, non_white);
+ }
+ /* replace the line */
+***************
+*** 638,644 ****
+ oldp += offset;
+
+ /* insert pre-padding */
+! copy_spaces(newp + offset, (size_t)spaces);
+
+ /* copy the new text */
+ mch_memmove(newp + offset + spaces, s, (size_t)s_len);
+--- 638,644 ----
+ oldp += offset;
+
+ /* insert pre-padding */
+! vim_memset(newp + offset, ' ', (size_t)spaces);
+
+ /* copy the new text */
+ mch_memmove(newp + offset + spaces, s, (size_t)s_len);
+***************
+*** 647,653 ****
+ if (spaces && !bdp->is_short)
+ {
+ /* insert post-padding */
+! copy_spaces(newp + offset + spaces, (size_t)(p_ts - spaces));
+ /* We're splitting a TAB, don't copy it. */
+ oldp++;
+ /* We allowed for that TAB, remember this now */
+--- 647,653 ----
+ if (spaces && !bdp->is_short)
+ {
+ /* insert post-padding */
+! vim_memset(newp + offset + spaces, ' ', (size_t)(p_ts - spaces));
+ /* We're splitting a TAB, don't copy it. */
+ oldp++;
+ /* We allowed for that TAB, remember this now */
+***************
+*** 1831,1837 ****
+ /* copy up to deleted part */
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+ /* insert spaces */
+! copy_spaces(newp + bd.textcol,
+ (size_t)(bd.startspaces + bd.endspaces));
+ /* copy the part after the deleted part */
+ oldp += bd.textcol + bd.textlen;
+--- 1831,1837 ----
+ /* copy up to deleted part */
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+ /* insert spaces */
+! vim_memset(newp + bd.textcol, ' ',
+ (size_t)(bd.startspaces + bd.endspaces));
+ /* copy the part after the deleted part */
+ oldp += bd.textcol + bd.textlen;
+***************
+*** 2132,2138 ****
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+ oldp += bd.textcol + bd.textlen;
+ /* insert pre-spaces */
+! copy_spaces(newp + bd.textcol, (size_t)bd.startspaces);
+ /* insert replacement chars CHECK FOR ALLOCATED SPACE */
+ /* -1/-2 is used for entering CR literally. */
+ if (had_ctrl_v_cr || (c != '\r' && c != '\n'))
+--- 2132,2138 ----
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+ oldp += bd.textcol + bd.textlen;
+ /* insert pre-spaces */
+! vim_memset(newp + bd.textcol, ' ', (size_t)bd.startspaces);
+ /* insert replacement chars CHECK FOR ALLOCATED SPACE */
+ /* -1/-2 is used for entering CR literally. */
+ if (had_ctrl_v_cr || (c != '\r' && c != '\n'))
+***************
+*** 2146,2156 ****
+ }
+ else
+ #endif
+! copy_chars(newp + STRLEN(newp), (size_t)numc, c);
+ if (!bd.is_short)
+ {
+ /* insert post-spaces */
+! copy_spaces(newp + STRLEN(newp), (size_t)bd.endspaces);
+ /* copy the part after the changed part */
+ STRMOVE(newp + STRLEN(newp), oldp);
+ }
+--- 2146,2156 ----
+ }
+ else
+ #endif
+! vim_memset(newp + STRLEN(newp), c, (size_t)numc);
+ if (!bd.is_short)
+ {
+ /* insert post-spaces */
+! vim_memset(newp + STRLEN(newp), ' ', (size_t)bd.endspaces);
+ /* copy the part after the changed part */
+ STRMOVE(newp + STRLEN(newp), oldp);
+ }
+***************
+*** 2831,2837 ****
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+ offset = bd.textcol;
+ # ifdef FEAT_VIRTUALEDIT
+! copy_spaces(newp + offset, (size_t)vpos.coladd);
+ offset += vpos.coladd;
+ # endif
+ mch_memmove(newp + offset, ins_text, (size_t)ins_len);
+--- 2831,2837 ----
+ mch_memmove(newp, oldp, (size_t)bd.textcol);
+ offset = bd.textcol;
+ # ifdef FEAT_VIRTUALEDIT
+! vim_memset(newp + offset, ' ', (size_t)vpos.coladd);
+ offset += vpos.coladd;
+ # endif
+ mch_memmove(newp + offset, ins_text, (size_t)ins_len);
+***************
+*** 3272,3282 ****
+ == NULL)
+ return FAIL;
+ y_current->y_array[y_idx] = pnew;
+! copy_spaces(pnew, (size_t)bd->startspaces);
+ pnew += bd->startspaces;
+ mch_memmove(pnew, bd->textstart, (size_t)bd->textlen);
+ pnew += bd->textlen;
+! copy_spaces(pnew, (size_t)bd->endspaces);
+ pnew += bd->endspaces;
+ *pnew = NUL;
+ return OK;
+--- 3272,3282 ----
+ == NULL)
+ return FAIL;
+ y_current->y_array[y_idx] = pnew;
+! vim_memset(pnew, ' ', (size_t)bd->startspaces);
+ pnew += bd->startspaces;
+ mch_memmove(pnew, bd->textstart, (size_t)bd->textlen);
+ pnew += bd->textlen;
+! vim_memset(pnew, ' ', (size_t)bd->endspaces);
+ pnew += bd->endspaces;
+ *pnew = NUL;
+ return OK;
+***************
+*** 3690,3696 ****
+ mch_memmove(ptr, oldp, (size_t)bd.textcol);
+ ptr += bd.textcol;
+ /* may insert some spaces before the new text */
+! copy_spaces(ptr, (size_t)bd.startspaces);
+ ptr += bd.startspaces;
+ /* insert the new text */
+ for (j = 0; j < count; ++j)
+--- 3690,3696 ----
+ mch_memmove(ptr, oldp, (size_t)bd.textcol);
+ ptr += bd.textcol;
+ /* may insert some spaces before the new text */
+! vim_memset(ptr, ' ', (size_t)bd.startspaces);
+ ptr += bd.startspaces;
+ /* insert the new text */
+ for (j = 0; j < count; ++j)
+***************
+*** 3701,3712 ****
+ /* insert block's trailing spaces only if there's text behind */
+ if ((j < count - 1 || !shortline) && spaces)
+ {
+! copy_spaces(ptr, (size_t)spaces);
+ ptr += spaces;
+ }
+ }
+ /* may insert some spaces after the new text */
+! copy_spaces(ptr, (size_t)bd.endspaces);
+ ptr += bd.endspaces;
+ /* move the text after the cursor to the end of the line. */
+ mch_memmove(ptr, oldp + bd.textcol + delcount,
+--- 3701,3712 ----
+ /* insert block's trailing spaces only if there's text behind */
+ if ((j < count - 1 || !shortline) && spaces)
+ {
+! vim_memset(ptr, ' ', (size_t)spaces);
+ ptr += spaces;
+ }
+ }
+ /* may insert some spaces after the new text */
+! vim_memset(ptr, ' ', (size_t)bd.endspaces);
+ ptr += bd.endspaces;
+ /* move the text after the cursor to the end of the line. */
+ mch_memmove(ptr, oldp + bd.textcol + delcount,
+***************
+*** 4522,4528 ****
+ if (spaces[t] > 0)
+ {
+ cend -= spaces[t];
+! copy_spaces(cend, (size_t)(spaces[t]));
+ }
+ mark_col_adjust(curwin->w_cursor.lnum + t, (colnr_T)0, (linenr_T)-t,
+ (long)(cend - newp + spaces[t] - (curr - curr_start)));
+--- 4522,4528 ----
+ if (spaces[t] > 0)
+ {
+ cend -= spaces[t];
+! vim_memset(cend, ' ', (size_t)(spaces[t]));
+ }
+ mark_col_adjust(curwin->w_cursor.lnum + t, (colnr_T)0, (linenr_T)-t,
+ (long)(cend - newp + spaces[t] - (curr - curr_start)));
+*** ../vim-7.4.782/src/proto/misc2.pro 2014-08-10 13:34:59.064785459 +0200
+--- src/proto/misc2.pro 2015-07-17 13:11:12.612078233 +0200
+***************
+*** 37,44 ****
+ char_u *vim_strnsave_up __ARGS((char_u *string, int len));
+ void vim_strup __ARGS((char_u *p));
+ char_u *strup_save __ARGS((char_u *orig));
+- void copy_spaces __ARGS((char_u *ptr, size_t count));
+- void copy_chars __ARGS((char_u *ptr, size_t count, int c));
+ void del_trailing_spaces __ARGS((char_u *ptr));
+ void vim_strncpy __ARGS((char_u *to, char_u *from, size_t len));
+ void vim_strcat __ARGS((char_u *to, char_u *from, size_t tosize));
+--- 37,42 ----
+*** ../vim-7.4.782/src/screen.c 2015-06-10 12:16:41.926648740 +0200
+--- src/screen.c 2015-07-17 13:11:12.612078233 +0200
+***************
+*** 2833,2839 ****
+ int fdc = compute_foldcolumn(wp, 0);
+
+ /* Init to all spaces. */
+! copy_spaces(p, (size_t)fdc);
+
+ level = win_foldinfo.fi_level;
+ if (level > 0)
+--- 2833,2839 ----
+ int fdc = compute_foldcolumn(wp, 0);
+
+ /* Init to all spaces. */
+! vim_memset(p, ' ', (size_t)fdc);
+
+ level = win_foldinfo.fi_level;
+ if (level > 0)
+*** ../vim-7.4.782/src/version.c 2015-07-17 13:03:42.108357465 +0200
+--- src/version.c 2015-07-17 13:06:43.742631736 +0200
+***************
+*** 743,744 ****
+--- 743,746 ----
+ { /* Add new patch number below this line */
++ /**/
++ 783,
+ /**/
+
+--
+hundred-and-one symptoms of being an internet addict:
+228. You spend Saturday night making the counter on your home page
+ pass that 2000 mark.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
+/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\ an exciting new programming language -- http://www.Zimbu.org ///
+ \\\ help me help AIDS victims -- http://ICCF-Holland.org ///