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-rw-r--r--llimits.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/llimits.h b/llimits.h
index c60e1fd7..ec22f8c4 100644
--- a/llimits.h
+++ b/llimits.h
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: llimits.h,v 1.108 2013/06/19 14:27:00 roberto Exp roberto $ 2** $Id: llimits.h,v 1.109 2013/08/21 19:02:30 roberto Exp roberto $
3** Limits, basic types, and some other `installation-dependent' definitions 3** Limits, basic types, and some other `installation-dependent' definitions
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -43,11 +43,13 @@ typedef unsigned char lu_byte;
43#define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */ 43#define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */
44 44
45 45
46/* maximum value for a lua_Unsigned */
47#define MAX_UINTEGER (~(lua_Unsigned)0)
48
46/* minimum and maximum values for lua_Integer */ 49/* minimum and maximum values for lua_Integer */
47#define MAX_INTEGER ((lua_Integer)(~(lua_Unsigned)0 >> 1)) 50#define MAX_INTEGER ((lua_Integer)(MAX_UINTEGER >> 1))
48#define MIN_INTEGER (~MAX_INTEGER) 51#define MIN_INTEGER (~MAX_INTEGER)
49 52
50
51/* 53/*
52** conversion of pointer to integer 54** conversion of pointer to integer
53** this is for hashing only; there is no problem if the integer 55** this is for hashing only; there is no problem if the integer