From 5b4550ab0fb6ef28c9baa79db59ec789b998cf47 Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Tue, 8 Sep 2015 16:19:45 +0200
Subject: [PATCH] make MARK a constant that points to itself
---
src/backends/llk.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/backends/llk.c b/src/backends/llk.c
index ec5f7f71..898bfdcb 100644
--- a/src/backends/llk.c
+++ b/src/backends/llk.c
@@ -286,7 +286,7 @@ typedef struct {
// execute on their corresponding result.
// also on the stack below the mark, we store the previously accumulated
// value for the surrounding production.
-static void *MARK = (void *)-1; // stack frame delimiter
+static void const * const MARK = &MARK; // stack frame delimiter
static HLLkState *llk_parse_start_(HAllocator* mm__, const HParser* parser)
{
@@ -421,9 +421,9 @@ static HCountedArray *llk_parse_chunk_(HLLkState *s, const HParser* parser,
assert(!p->items[0] || p->items[0] != x);
// push stack frame
- h_slist_push(stack, seq); // save current partial value
- h_slist_push(stack, x); // save the nonterminal
- h_slist_push(stack, MARK); // frame delimiter
+ h_slist_push(stack, seq); // save current partial value
+ h_slist_push(stack, x); // save the nonterminal
+ h_slist_push(stack, (void *)MARK); // frame delimiter
// open a fresh result sequence
seq = h_carray_new(arena);
--
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