better control when growing arrays.

luamem.h

@@ -1,7 +1,7 @@
 /*
 ** mem.c
 ** memory manager for lua
-** $Id: mem.h,v 1.3 1996/02/22 20:34:33 roberto Exp roberto $
+** $Id: mem.h,v 1.4 1996/03/14 15:55:49 roberto Exp roberto $
 */
  
 #ifndef mem_h
@@ -11,14 +11,24 @@
 #define NULL 0
 #endif
 
+
+/* memory error messages */
+#define NUMERRMSG 6
+enum memerrormsg {codeEM, symbolEM, constantEM, stackEM, lexEM, lockEM};
+extern char *luaI_memerrormsg[];
+
+
 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);
+void *luaI_buffer (unsigned long size);
+int luaI_growvector (void **block, unsigned long nelems, int size,
+                       enum memerrormsg errormsg, unsigned long limit);
 
 #define new(s)          ((s *)luaI_malloc(sizeof(s)))
 #define newvector(n,s)  ((s *)luaI_malloc((n)*sizeof(s)))
-#define growvector(old,n,s) ((s *)luaI_realloc(old,(n)*sizeof(s)))
+#define growvector(old,n,s,e,l) \
+          (luaI_growvector((void**)old,n,sizeof(s),e,l))
 
 #endif