patch 8.2.4402: missing parenthesis may cause unexpected problems
Problem: Missing parenthesis may cause unexpected problems.
Solution: Add more parenthesis is macros. (closes #9788)
diff --git a/src/drawline.c b/src/drawline.c
index 441a817..51dcfb1 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -404,32 +404,32 @@
// draw_state: items that are drawn in sequence:
#define WL_START 0 // nothing done yet
#ifdef FEAT_CMDWIN
-# define WL_CMDLINE WL_START + 1 // cmdline window column
+# define WL_CMDLINE (WL_START + 1) // cmdline window column
#else
# define WL_CMDLINE WL_START
#endif
#ifdef FEAT_FOLDING
-# define WL_FOLD WL_CMDLINE + 1 // 'foldcolumn'
+# define WL_FOLD (WL_CMDLINE + 1) // 'foldcolumn'
#else
# define WL_FOLD WL_CMDLINE
#endif
#ifdef FEAT_SIGNS
-# define WL_SIGN WL_FOLD + 1 // column for signs
+# define WL_SIGN (WL_FOLD + 1) // column for signs
#else
# define WL_SIGN WL_FOLD // column for signs
#endif
-#define WL_NR WL_SIGN + 1 // line number
+#define WL_NR (WL_SIGN + 1) // line number
#ifdef FEAT_LINEBREAK
-# define WL_BRI WL_NR + 1 // 'breakindent'
+# define WL_BRI (WL_NR + 1) // 'breakindent'
#else
# define WL_BRI WL_NR
#endif
#if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
-# define WL_SBR WL_BRI + 1 // 'showbreak' or 'diff'
+# define WL_SBR (WL_BRI + 1) // 'showbreak' or 'diff'
#else
# define WL_SBR WL_BRI
#endif
-#define WL_LINE WL_SBR + 1 // text in the line
+#define WL_LINE (WL_SBR + 1) // text in the line
int draw_state = WL_START; // what to draw next
#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
int feedback_col = 0;