Additional FOR_ALL_WINDOWS usage

src/nvim/buffer.c

@@ -1763,13 +1763,16 @@ buflist_findpat (
             if (curtab_only) {
               /* Ignore the match if the buffer is not open in
                * the current tab. */
-              win_T       *wp;
-
-              for (wp = firstwin; wp != NULL; wp = wp->w_next)
-                if (wp->w_buffer == buf)
+              bool found_window = false;
+              FOR_ALL_WINDOWS(wp) {
+                if (wp->w_buffer == buf) {
+                  found_window = true;
                   break;
-              if (wp == NULL)
+                }
+              }
+              if (!found_window) {
                 continue;
+              }
             }
             if (match >= 0) {                   /* already found a match */
               match = -2;
@@ -2020,22 +2023,22 @@ static void buflist_setfpos(buf_T *buf, win_T *win, linenr_T lnum, colnr_T col,
 
 
 /*
- * Return TRUE when "wip" has 'diff' set and the diff is only for another tab
+ * Return true when "wip" has 'diff' set and the diff is only for another tab
  * page.  That's because a diff is local to a tab page.
  */
-static int wininfo_other_tab_diff(wininfo_T *wip)
+static bool wininfo_other_tab_diff(wininfo_T *wip)
 {
-  win_T       *wp;
-
   if (wip->wi_opt.wo_diff) {
-    for (wp = firstwin; wp != NULL; wp = wp->w_next)
-      /* return FALSE when it's a window in the current tab page, thus
+    FOR_ALL_WINDOWS(wp) {
+      /* return false when it's a window in the current tab page, thus
        * the buffer was in diff mode here */
-      if (wip->wi_win == wp)
-        return FALSE;
-    return TRUE;
+      if (wip->wi_win == wp) {
+        return false;
+      }
+    }
+    return true;
   }
-  return FALSE;
+  return false;
 }
 
 /*
@@ -3601,7 +3604,6 @@ do_arg_all (
 )
 {
   int i;
-  win_T       *wp, *wpnext;
   char_u      *opened;          /* Array of weight for which args are open:
                                  *  0: not opened
                                  *  1: opened in other tab
@@ -3651,8 +3653,9 @@ do_arg_all (
   if (had_tab > 0)
     goto_tabpage_tp(first_tabpage, TRUE, TRUE);
   for (;; ) {
+    win_T *wpnext = NULL;
     tpnext = curtab->tp_next;
-    for (wp = firstwin; wp != NULL; wp = wpnext) {
+    for (win_T *wp = firstwin; wp != NULL; wp = wpnext) {
       wpnext = wp->w_next;
       buf = wp->w_buffer;
       if (buf->b_ffname == NULL
@@ -3762,13 +3765,14 @@ do_arg_all (
     if (opened[i] > 0) {
       /* Move the already present window to below the current window */
       if (curwin->w_arg_idx != i) {
-        for (wpnext = firstwin; wpnext != NULL; wpnext = wpnext->w_next) {
-          if (wpnext->w_arg_idx == i) {
+        FOR_ALL_WINDOWS(wp) {
+          if (wp->w_arg_idx == i) {
             if (keep_tabs) {
-              new_curwin = wpnext;
+              new_curwin = wp;
               new_curtab = curtab;
-            } else
-              win_move_after(wpnext, curwin);
+            } else {
+              win_move_after(wp, curwin);
+            }
             break;
           }
         }

src/nvim/diff.c

@@ -87,14 +87,14 @@ void diff_buf_adjust(win_T *win)
   if (!win->w_p_diff) {
     // When there is no window showing a diff for this buffer, remove
     // it from the diffs.
-    win_T *wp;
-    for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+    bool found_win = false;
+    FOR_ALL_WINDOWS(wp) {
       if ((wp->w_buffer == win->w_buffer) && wp->w_p_diff) {
-        break;
+        found_win = true;
       }
     }
 
-    if (wp == NULL) {
+    if (!found_win) {
       int i = diff_buf_idx(win->w_buffer);
       if (i != DB_COUNT) {
         curtab->tp_diffbuf[i] = NULL;
@@ -581,8 +581,7 @@ static int diff_check_sanity(tabpage_T *tp, diff_T *dp)
 /// @param dofold Also recompute the folds
 static void diff_redraw(int dofold)
 {
-  win_T *wp;
-  for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+  FOR_ALL_WINDOWS(wp) {
     if (wp->w_p_diff) {
       redraw_win_later(wp, SOME_VALID);
       if (dofold && foldmethodIsDiff(wp)) {
@@ -1111,8 +1110,7 @@ void ex_diffoff(exarg_T *eap)
   win_T *old_curwin = curwin;
   int diffwin = FALSE;
 
-  win_T *wp;
-  for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+  FOR_ALL_WINDOWS(wp) {
     if (eap->forceit ? wp->w_p_diff : (wp == curwin)) {
       // Set 'diff', 'scrollbind' off and 'wrap' on. If option values
       // were saved in diff_win_options() restore them.
@@ -2364,10 +2362,8 @@ void ex_diffgetput(exarg_T *eap)
 /// @param skip_idx
 static void diff_fold_update(diff_T *dp, int skip_idx)
 {
-  win_T *wp;
-  for (wp = firstwin; wp != NULL; wp = wp->w_next) {
-    int i;
-    for (i = 0; i < DB_COUNT; ++i) {
+  FOR_ALL_WINDOWS(wp) {
+    for (int i = 0; i < DB_COUNT; ++i) {
       if ((curtab->tp_diffbuf[i] == wp->w_buffer) && (i != skip_idx)) {
         foldUpdate(wp, dp->df_lnum[i], dp->df_lnum[i] + dp->df_count[i]);
       }

src/nvim/eval.c

@@ -7361,19 +7361,20 @@ static void f_bufnr(typval_T *argvars, typval_T *rettv)
  */
 static void f_bufwinnr(typval_T *argvars, typval_T *rettv)
 {
-  win_T       *wp;
-  int winnr = 0;
-  buf_T       *buf;
-
   (void)get_tv_number(&argvars[0]);         /* issue errmsg if type error */
   ++emsg_off;
-  buf = get_buf_tv(&argvars[0], TRUE);
-  for (wp = firstwin; wp; wp = wp->w_next) {
+
+  buf_T *buf = get_buf_tv(&argvars[0], TRUE);
+  int winnr = 0;
+  bool found_buf = false;
+  FOR_ALL_WINDOWS(wp) {
     ++winnr;
-    if (wp->w_buffer == buf)
+    if (wp->w_buffer == buf) {
+      found_buf = true;
       break;
+    }
   }
-  rettv->vval.v_number = (wp != NULL ? winnr : -1);
+  rettv->vval.v_number = (found_buf ? winnr : -1);
   --emsg_off;
 }
 
@@ -14750,13 +14751,12 @@ static void f_winnr(typval_T *argvars, typval_T *rettv)
  */
 static void f_winrestcmd(typval_T *argvars, typval_T *rettv)
 {
-  win_T       *wp;
   int winnr = 1;
   garray_T ga;
   char_u buf[50];
 
   ga_init(&ga, (int)sizeof(char), 70);
-  for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+  FOR_ALL_WINDOWS(wp) {
     sprintf((char *)buf, "%dresize %d|", winnr, wp->w_height);
     ga_concat(&ga, buf);
     sprintf((char *)buf, "vert %dresize %d|", winnr, wp->w_width);

src/nvim/ex_cmds.c

@@ -4610,19 +4610,19 @@ prepare_tagpreview (
     bool undo_sync                  /* sync undo when leaving the window */
 )
 {
-  win_T       *wp;
-
-
   /*
    * If there is already a preview window open, use that one.
    */
   if (!curwin->w_p_pvw) {
-    for (wp = firstwin; wp != NULL; wp = wp->w_next)
-      if (wp->w_p_pvw)
+    bool found_win = false;
+    FOR_ALL_WINDOWS(wp) {
+      if (wp->w_p_pvw) {
+        win_enter(wp, undo_sync);
+        found_win = true;
         break;
-    if (wp != NULL)
-      win_enter(wp, undo_sync);
-    else {
+      }
+    }
+    if (!found_win) {
       /*
        * There is no preview window open yet.  Create one.
        */

src/nvim/ex_cmds2.c

@@ -1228,7 +1228,7 @@ check_changed_any (
   /* buf in other tab */
   for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) {
     if (tp != curtab) {
-      for (wint_T *wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) {
+      for (win_T *wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next) {
         add_bufnum(bufnrs, &bufnum, wp->w_buffer->b_fnum);
       }
     }
@@ -1282,8 +1282,8 @@ check_changed_any (
   }
 
   /* Try to find a window that contains the buffer. */
-  if (buf != curbuf)
-    wint_T *wp;
+  if (buf != curbuf) {
+    win_T *wp;
     FOR_ALL_TAB_WINDOWS(tp, wp) {
       if (wp->w_buffer == buf) {
         goto_tabpage_win(tp, wp);
@@ -1294,6 +1294,7 @@ check_changed_any (
         goto buf_found;
       }
     }
+  }
 buf_found:
 
   /* Open the changed buffer in the current window. */

src/nvim/ex_docmd.c

@@ -5188,13 +5188,12 @@ static void ex_close(exarg_T *eap)
  */
 static void ex_pclose(exarg_T *eap)
 {
-  win_T       *win;
-
-  for (win = firstwin; win != NULL; win = win->w_next)
+  FOR_ALL_WINDOWS(win) {
     if (win->w_p_pvw) {
       ex_win_close(eap->forceit, win, NULL);
       break;
     }
+  }
 }
 
 /*
@@ -6119,7 +6118,6 @@ static void ex_swapname(exarg_T *eap)
  */
 static void ex_syncbind(exarg_T *eap)
 {
-  win_T       *wp;
   win_T       *save_curwin = curwin;
   buf_T       *save_curbuf = curbuf;
   long topline;
@@ -6133,15 +6131,17 @@ static void ex_syncbind(exarg_T *eap)
    */
   if (curwin->w_p_scb) {
     topline = curwin->w_topline;
-    for (wp = firstwin; wp; wp = wp->w_next) {
+    FOR_ALL_WINDOWS(wp) {
       if (wp->w_p_scb && wp->w_buffer) {
         y = wp->w_buffer->b_ml.ml_line_count - p_so;
-        if (topline > y)
+        if (topline > y) {
           topline = y;
+        }
       }
     }
-    if (topline < 1)
+    if (topline < 1) {
       topline = 1;
+    }
   } else {
     topline = 1;
   }

src/nvim/fileio.c

@@ -6177,12 +6177,17 @@ aucmd_prepbuf (
   int save_acd;
 
   /* Find a window that is for the new buffer */
-  if (buf == curbuf)            /* be quick when buf is curbuf */
+  if (buf == curbuf) {          /* be quick when buf is curbuf */
     win = curwin;
-  else
-    for (win = firstwin; win != NULL; win = win->w_next)
-      if (win->w_buffer == buf)
+  } else {
+    win = NULL;
+    FOR_ALL_WINDOWS(wp) {
+      if (wp->w_buffer == buf) {
+        win = wp;
         break;
+      }
+    }
+  }
 
   /* Allocate "aucmd_win" when needed.  If this fails (out of memory) fall
    * back to using the current window. */

src/nvim/main.c

@@ -471,11 +471,10 @@ int main(int argc, char **argv)
   edit_buffers(&params);
 
   if (params.diff_mode) {
-    win_T   *wp;
-
     /* set options in each window for "vimdiff". */
-    for (wp = firstwin; wp != NULL; wp = wp->w_next)
+    FOR_ALL_WINDOWS(wp) {
       diff_win_options(wp, TRUE);
+    }
   }
 
   /*

src/nvim/misc1.c

@@ -1877,16 +1877,16 @@ void changed_bytes(linenr_T lnum, colnr_T col)
 
   /* Diff highlighting in other diff windows may need to be updated too. */
   if (curwin->w_p_diff) {
-    win_T       *wp;
     linenr_T wlnum;
 
-    for (wp = firstwin; wp != NULL; wp = wp->w_next)
+    FOR_ALL_WINDOWS(wp) {
       if (wp->w_p_diff && wp != curwin) {
         redraw_win_later(wp, VALID);
         wlnum = diff_lnum_win(lnum, wp);
         if (wlnum > 0)
           changedOneline(wp->w_buffer, wlnum);
       }
+    }
   }
 }
 
@@ -1973,17 +1973,18 @@ changed_lines (
     /* When the number of lines doesn't change then mark_adjust() isn't
      * called and other diff buffers still need to be marked for
      * displaying. */
-    win_T       *wp;
     linenr_T wlnum;
 
-    for (wp = firstwin; wp != NULL; wp = wp->w_next)
+    FOR_ALL_WINDOWS(wp) {
       if (wp->w_p_diff && wp != curwin) {
         redraw_win_later(wp, VALID);
         wlnum = diff_lnum_win(lnum, wp);
-        if (wlnum > 0)
+        if (wlnum > 0) {
           changed_lines_buf(wp->w_buffer, wlnum,
               lnume - lnum + wlnum, 0L);
+        }
       }
+    }
   }
 
   changed_common(lnum, col, lnume, xtra);
@@ -2214,14 +2215,14 @@ unchanged (
  */
 void check_status(buf_T *buf)
 {
-  win_T       *wp;
-
-  for (wp = firstwin; wp != NULL; wp = wp->w_next)
+  FOR_ALL_WINDOWS(wp) {
     if (wp->w_buffer == buf && wp->w_status_height) {
       wp->w_redr_status = TRUE;
-      if (must_redraw < VALID)
+      if (must_redraw < VALID) {
         must_redraw = VALID;
+      }
     }
+  }
 }
 
 /*

src/nvim/option.c

@@ -5075,9 +5075,7 @@ set_bool_option (
   /* There can be only one window with 'previewwindow' set. */
   else if ((int *)varp == &curwin->w_p_pvw) {
     if (curwin->w_p_pvw) {
-      win_T       *win;
-
-      for (win = firstwin; win != NULL; win = win->w_next) {
+      FOR_ALL_WINDOWS(win) {
         if (win->w_p_pvw && win != curwin) {
           curwin->w_p_pvw = FALSE;
           return (char_u *)N_("E590: A preview window already exists");

src/nvim/quickfix.c

@@ -1379,14 +1379,16 @@ void qf_jump(qf_info_T *qi, int dir, int errornr, int forceit)
    * For ":helpgrep" find a help window or open one.
    */
   if (qf_ptr->qf_type == 1 && (!curwin->w_buffer->b_help || cmdmod.tab != 0)) {
-    win_T   *wp;
+    win_T *wp = NULL;
 
-    if (cmdmod.tab != 0)
-      wp = NULL;
-    else
-      for (wp = firstwin; wp != NULL; wp = wp->w_next)
-        if (wp->w_buffer != NULL && wp->w_buffer->b_help)
+    if (cmdmod.tab == 0) {
+      FOR_ALL_WINDOWS(wp2) {
+        if (wp2->w_buffer != NULL && wp2->w_buffer->b_help) {
+          wp = wp2;
           break;
+        }
+      }
+    }
     if (wp != NULL && wp->w_buffer->b_nwindows > 0)
       win_enter(wp, true);
     else {

src/nvim/screen.c

@@ -4553,13 +4553,13 @@ void rl_mirror(char_u *str)
  */
 void status_redraw_all(void)
 {
-  win_T       *wp;
 
-  for (wp = firstwin; wp; wp = wp->w_next)
+  FOR_ALL_WINDOWS(wp) {
     if (wp->w_status_height) {
       wp->w_redr_status = TRUE;
       redraw_later(VALID);
     }
+  }
 }
 
 /*
@@ -4567,13 +4567,12 @@ void status_redraw_all(void)
  */
 void status_redraw_curbuf(void)
 {
-  win_T       *wp;
-
-  for (wp = firstwin; wp; wp = wp->w_next)
+  FOR_ALL_WINDOWS(wp) {
     if (wp->w_status_height != 0 && wp->w_buffer == curbuf) {
       wp->w_redr_status = TRUE;
       redraw_later(VALID);
     }
+  }
 }
 
 /*
@@ -4581,11 +4580,11 @@ void status_redraw_curbuf(void)
  */
 void redraw_statuslines(void)
 {
-  win_T       *wp;
-
-  for (wp = firstwin; wp; wp = wp->w_next)
-    if (wp->w_redr_status)
+  FOR_ALL_WINDOWS(wp) {
+    if (wp->w_redr_status) {
       win_redr_status(wp);
+    }
+  }
   if (redraw_tabline)
     draw_tabline();
 }

src/nvim/spell.c

@@ -4155,8 +4155,6 @@ void spell_free_all(void)
 // Used after 'encoding' is set and when ":mkspell" was used.
 void spell_reload(void)
 {
-  win_T       *wp;
-
   // Initialize the table for spell_iswordp().
   init_spell_chartab();
 
@@ -4164,7 +4162,7 @@ void spell_reload(void)
   spell_free_all();
 
   // Go through all buffers and handle 'spelllang'.
-  for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+  FOR_ALL_WINDOWS(wp) {
     // Only load the wordlists when 'spelllang' is set and there is a
     // window for this buffer in which 'spell' is set.
     if (*wp->w_s->b_p_spl != NUL) {

src/nvim/window.c

@@ -982,13 +982,13 @@ static void win_init_some(win_T *newp, win_T *oldp)
  */
 int win_valid(win_T *win)
 {
-  win_T       *wp;
-
   if (win == NULL)
     return FALSE;
-  for (wp = firstwin; wp != NULL; wp = wp->w_next)
-    if (wp == win)
+  FOR_ALL_WINDOWS(wp) {
+    if (wp == win) {
       return TRUE;
+    }
+  }
   return FALSE;
 }
 
@@ -997,11 +997,11 @@ int win_valid(win_T *win)
  */
 int win_count(void)
 {
-  win_T       *wp;
   int count = 0;
 
-  for (wp = firstwin; wp != NULL; wp = wp->w_next)
+  FOR_ALL_WINDOWS(wp) {
     ++count;
+  }
   return count;
 }
 
@@ -3475,14 +3475,14 @@ static void win_enter_ext(win_T *wp, bool undo_sync, int curwin_invalid, int tri
  */
 win_T *buf_jump_open_win(buf_T *buf)
 {
-  win_T       *wp;
+  FOR_ALL_WINDOWS(wp) {
+    if (wp->w_buffer == buf) {
+      win_enter(wp, false);
+      return wp;
+    }
+  }
 
-  for (wp = firstwin; wp != NULL; wp = wp->w_next)
-    if (wp->w_buffer == buf)
-      break;
-  if (wp != NULL)
-    win_enter(wp, false);
-  return wp;
+  return NULL;
 }
 
 /*
@@ -3784,11 +3784,9 @@ void shell_new_columns(void)
 void win_size_save(garray_T *gap)
 
 {
-  win_T       *wp;
-
   ga_init(gap, (int)sizeof(int), 1);
   ga_grow(gap, win_count() * 2);
-  for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+  FOR_ALL_WINDOWS(wp) {
     ((int *)gap->ga_data)[gap->ga_len++] =
       wp->w_width + wp->w_vsep_width;
     ((int *)gap->ga_data)[gap->ga_len++] = wp->w_height;
@@ -3801,11 +3799,9 @@ void win_size_save(garray_T *gap)
  */
 void win_size_restore(garray_T *gap)
 {
-  win_T       *wp;
-
   if (win_count() * 2 == gap->ga_len) {
     int i = 0;
-    for (wp = firstwin; wp != NULL; wp = wp->w_next) {
+    FOR_ALL_WINDOWS(wp) {
       frame_setwidth(wp->w_frame, ((int *)gap->ga_data)[i++]);
       win_setheight_win(((int *)gap->ga_data)[i++], wp);
     }
@@ -4233,14 +4229,14 @@ void win_setminheight(void)
 {
   int room;
   int first = TRUE;
-  win_T       *wp;
 
   /* loop until there is a 'winminheight' that is possible */
   while (p_wmh > 0) {
     /* TODO: handle vertical splits */
     room = -p_wh;
-    for (wp = firstwin; wp != NULL; wp = wp->w_next)
+    FOR_ALL_WINDOWS(wp) {
       room += wp->w_height - p_wmh;
+    }
     if (room >= 0)
       break;
     --p_wmh;
@@ -4931,20 +4927,21 @@ int min_rows(void)
 int only_one_window(void)
 {
   int count = 0;
-  win_T       *wp;
 
   /* If there is another tab page there always is another window. */
   if (first_tabpage->tp_next != NULL)
     return FALSE;
 
-  for (wp = firstwin; wp != NULL; wp = wp->w_next)
+  FOR_ALL_WINDOWS(wp) {
     if (wp->w_buffer != NULL
         && (!((wp->w_buffer->b_help && !curbuf->b_help)
               || wp->w_p_pvw
               ) || wp == curwin)
         && wp != aucmd_win
-        )
+        ) {
       ++count;
+    }
+  }
   return count <= 1;
 }