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/syntax.c b/src/syntax.c
index 11f5587..6683d2a 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -81,7 +81,7 @@
#define SYN_ITEMS(buf) ((synpat_T *)((buf)->b_syn_patterns.ga_data))
-#define NONE_IDX -2 // value of sp_sync_idx for "NONE"
+#define NONE_IDX (-2) // value of sp_sync_idx for "NONE"
/*
* Flags for b_syn_sync_flags:
@@ -207,8 +207,8 @@
// pattern
} stateitem_T;
-#define KEYWORD_IDX -1 // value of si_idx for keywords
-#define ID_LIST_ALL (short *)-1 // valid of si_cont_list for containing all
+#define KEYWORD_IDX (-1) // value of si_idx for keywords
+#define ID_LIST_ALL ((short *)-1) // valid of si_cont_list for containing all
// but contained groups
#ifdef FEAT_CONCEAL