Upgrading to Lua-5.1.2

1 files changed, 22 insertions, 17 deletions

diff --git a/lib/lua/includes/lmem.h b/lib/lua/includes/lmem.h
index 20bc584..4872cd1 100644
--- a/lib/lua/includes/lmem.h
+++ b/lib/lua/includes/lmem.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lmem.h,v 1.4 2004-11-27 21:46:06 pixel Exp $
+** $Id: lmem.h,v 1.5 2007-07-27 10:05:53 pixel Exp $
 ** Interface to Memory Manager
 ** See Copyright Notice in lua.h
 */
@@ -16,29 +16,34 @@
 #define MEMERRMSG	"not enough memory"
 
 
-void *luaM_realloc (lua_State *L, void *oldblock, lu_mem oldsize, lu_mem size);
+#define luaM_reallocv(L,b,on,n,e) \
+	((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ?  /* +1 to avoid warnings */ \
+		luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \
+		luaM_toobig(L))
 
-void *luaM_growaux (lua_State *L, void *block, int *size, int size_elem,
-                    int limit, const char *errormsg);
+#define luaM_freemem(L, b, s)	luaM_realloc_(L, (b), (s), 0)
+#define luaM_free(L, b)		luaM_realloc_(L, (b), sizeof(*(b)), 0)
+#define luaM_freearray(L, b, n, t)   luaM_reallocv(L, (b), n, 0, sizeof(t))
 
-#define luaM_free(L, b, s)	luaM_realloc(L, (b), (s), 0)
-#define luaM_freelem(L, b)	luaM_realloc(L, (b), sizeof(*(b)), 0)
-#define luaM_freearray(L, b, n, t)	luaM_realloc(L, (b), \
-                                      cast(lu_mem, n)*cast(lu_mem, sizeof(t)), 0)
-
-#define luaM_malloc(L, t)	luaM_realloc(L, NULL, 0, (t))
-#define luaM_new(L, t)          cast(t *, luaM_malloc(L, sizeof(t)))
-#define luaM_newvector(L, n,t)  cast(t *, luaM_malloc(L, \
-                                         cast(lu_mem, n)*cast(lu_mem, sizeof(t))))
+#define luaM_malloc(L,t)	luaM_realloc_(L, NULL, 0, (t))
+#define luaM_new(L,t)		cast(t *, luaM_malloc(L, sizeof(t)))
+#define luaM_newvector(L,n,t) \
+		cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t)))
 
 #define luaM_growvector(L,v,nelems,size,t,limit,e) \
-          if (((nelems)+1) > (size)) \
-            ((v)=cast(t *, luaM_growaux(L,v,&(size),sizeof(t),limit,e)))
+          if ((nelems)+1 > (size)) \
+            ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
 
 #define luaM_reallocvector(L, v,oldn,n,t) \
-   ((v)=cast(t *, luaM_realloc(L, v,cast(lu_mem, oldn)*cast(lu_mem, sizeof(t)), \
-                                    cast(lu_mem, n)*cast(lu_mem, sizeof(t)))))
+   ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t))))
+
 
+LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize,
+                                                          size_t size);
+LUAI_FUNC void *luaM_toobig (lua_State *L);
+LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size,
+                               size_t size_elem, int limit,
+                               const char *errormsg);
 
 #endif