From 7236df875aa62e3e217e676365738ae5a0308a9b Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 14 Mar 1996 12:55:49 -0300
Subject: [PATCH] new function "luaI_buffer".

---
 luamem.c | 12 +++++++++++-
 luamem.h |  3 ++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/luamem.c b/luamem.c
index ef4eae29..eeceaea2 100644
--- a/luamem.c
+++ b/luamem.c
@@ -3,7 +3,7 @@
 ** TecCGraf - PUC-Rio
 */
 
-char *rcs_mem = "$Id: mem.c,v 1.7 1996/02/04 16:59:12 roberto Exp roberto $";
+char *rcs_mem = "$Id: mem.c,v 1.8 1996/02/22 20:34:33 roberto Exp roberto $";
 
 #include <stdlib.h>
 #include <string.h>
@@ -53,3 +53,13 @@ void *luaI_realloc (void *oldblock, unsigned long size)
   return block;
 }
 
+
+void* luaI_buffer (unsigned long size)
+{
+  static unsigned long buffsize = 0;
+  static char* buffer = NULL;
+  if (size > buffsize)
+    buffer = luaI_realloc(buffer, buffsize=size);
+  return buffer;
+}
+
diff --git a/luamem.h b/luamem.h
index 06687efc..57e8f2d9 100644
--- a/luamem.h
+++ b/luamem.h
@@ -1,7 +1,7 @@
 /*
 ** mem.c
 ** memory manager for lua
-** $Id: mem.h,v 1.2 1995/01/13 22:11:12 roberto Exp roberto $
+** $Id: mem.h,v 1.3 1996/02/22 20:34:33 roberto Exp roberto $
 */
  
 #ifndef mem_h
@@ -14,6 +14,7 @@
 void luaI_free (void *block);
 void *luaI_malloc (unsigned long size);
 void *luaI_realloc (void *oldblock, unsigned long size);
+void* luaI_buffer (unsigned long size);
 
 #define new(s)          ((s *)luaI_malloc(sizeof(s)))
 #define newvector(n,s)  ((s *)luaI_malloc((n)*sizeof(s)))