From d61b0c60287c38008d312ddd11724a15b1737f7b Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 26 May 2022 15:14:54 -0300
Subject: More checks and documentation for uses of EXTRA_STACK

---
 ldo.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'ldo.h')

diff --git a/ldo.h b/ldo.h
index 4cbdb847..4661aa00 100644
--- a/ldo.h
+++ b/ldo.h
@@ -37,6 +37,13 @@
 
 
 /* macro to check stack size, preserving 'p' */
+#define checkstackp(L,n,p)  \
+  luaD_checkstackaux(L, n, \
+    ptrdiff_t t__ = savestack(L, p),  /* save 'p' */ \
+    p = restorestack(L, t__))  /* 'pos' part: restore 'p' */
+
+
+/* macro to check stack size and GC, preserving 'p' */
 #define checkstackGCp(L,n,p)  \
   luaD_checkstackaux(L, n, \
     ptrdiff_t t__ = savestack(L, p);  /* save 'p' */ \
-- 
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