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authorfaketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6>2011-10-03 21:25:04 +0200
committerfaketruth <faketruth@0a769ca7-a7f5-676a-18bf-c427514a06d6>2011-10-03 21:25:04 +0200
commitaafef187ef856a36c3f8e599afea2dee44f08904 (patch)
treec84762cc768da2800a0f80b902c704e782bd29ef /lua-5.1.4/src/llimits.h
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Diffstat (limited to 'lua-5.1.4/src/llimits.h')
-rw-r--r--lua-5.1.4/src/llimits.h128
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diff --git a/lua-5.1.4/src/llimits.h b/lua-5.1.4/src/llimits.h
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+/*
+** $Id: llimits.h,v 1.69.1.1 2007/12/27 13:02:25 roberto Exp $
+** Limits, basic types, and some other `installation-dependent' definitions
+** See Copyright Notice in lua.h
+*/
+
+#ifndef llimits_h
+#define llimits_h
+
+
+#include <limits.h>
+#include <stddef.h>
+
+
+#include "lua.h"
+
+
+typedef LUAI_UINT32 lu_int32;
+
+typedef LUAI_UMEM lu_mem;
+
+typedef LUAI_MEM l_mem;
+
+
+
+/* chars used as small naturals (so that `char' is reserved for characters) */
+typedef unsigned char lu_byte;
+
+
+#define MAX_SIZET ((size_t)(~(size_t)0)-2)
+
+#define MAX_LUMEM ((lu_mem)(~(lu_mem)0)-2)
+
+
+#define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */
+
+/*
+** conversion of pointer to integer
+** this is for hashing only; there is no problem if the integer
+** cannot hold the whole pointer value
+*/
+#define IntPoint(p) ((unsigned int)(lu_mem)(p))
+
+
+
+/* type to ensure maximum alignment */
+typedef LUAI_USER_ALIGNMENT_T L_Umaxalign;
+
+
+/* result of a `usual argument conversion' over lua_Number */
+typedef LUAI_UACNUMBER l_uacNumber;
+
+
+/* internal assertions for in-house debugging */
+#ifdef lua_assert
+
+#define check_exp(c,e) (lua_assert(c), (e))
+#define api_check(l,e) lua_assert(e)
+
+#else
+
+#define lua_assert(c) ((void)0)
+#define check_exp(c,e) (e)
+#define api_check luai_apicheck
+
+#endif
+
+
+#ifndef UNUSED
+#define UNUSED(x) ((void)(x)) /* to avoid warnings */
+#endif
+
+
+#ifndef cast
+#define cast(t, exp) ((t)(exp))
+#endif
+
+#define cast_byte(i) cast(lu_byte, (i))
+#define cast_num(i) cast(lua_Number, (i))
+#define cast_int(i) cast(int, (i))
+
+
+
+/*
+** type for virtual-machine instructions
+** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h)
+*/
+typedef lu_int32 Instruction;
+
+
+
+/* maximum stack for a Lua function */
+#define MAXSTACK 250
+
+
+
+/* minimum size for the string table (must be power of 2) */
+#ifndef MINSTRTABSIZE
+#define MINSTRTABSIZE 32
+#endif
+
+
+/* minimum size for string buffer */
+#ifndef LUA_MINBUFFER
+#define LUA_MINBUFFER 32
+#endif
+
+
+#ifndef lua_lock
+#define lua_lock(L) ((void) 0)
+#define lua_unlock(L) ((void) 0)
+#endif
+
+#ifndef luai_threadyield
+#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);}
+#endif
+
+
+/*
+** macro to control inclusion of some hard tests on stack reallocation
+*/
+#ifndef HARDSTACKTESTS
+#define condhardstacktests(x) ((void)0)
+#else
+#define condhardstacktests(x) x
+#endif
+
+#endif