thirdparty/civetweb-1.9.1/src/third_party/lua-5.2.4/src/llimits.h - nifi-minifi-cpp - Git at Google

 /*
 ** $Id: llimits.h,v 1.103.1.1 2013/04/12 18:48:47 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 unsigned LUA_INT32 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_LMEM	((l_mem) ((MAX_LUMEM >> 1) - 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 */
 #if !defined(LUAI_USER_ALIGNMENT_T)
 #define LUAI_USER_ALIGNMENT_T	union { double u; void *s; long l; }
 #endif

 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 */
 #if defined(lua_assert)
 #define check_exp(c,e)		(lua_assert(c), (e))
 /* to avoid problems with conditions too long */
 #define lua_longassert(c)	{ if (!(c)) lua_assert(0); }
 #else
 #define lua_assert(c)		((void)0)
 #define check_exp(c,e)		(e)
 #define lua_longassert(c)	((void)0)
 #endif

 /*
 ** assertion for checking API calls
 */
 #if !defined(luai_apicheck)

 #if defined(LUA_USE_APICHECK)
 #include <assert.h>
 #define luai_apicheck(L,e)	assert(e)
 #else
 #define luai_apicheck(L,e)	lua_assert(e)
 #endif

 #endif

 #define api_check(l,e,msg)	luai_apicheck(l,(e) && msg)


 #if !defined(UNUSED)
 #define UNUSED(x)	((void)(x))	/* to avoid warnings */
 #endif


 #define cast(t, exp)	((t)(exp))

 #define cast_byte(i)	cast(lu_byte, (i))
 #define cast_num(i)	cast(lua_Number, (i))
 #define cast_int(i)	cast(int, (i))
 #define cast_uchar(i)	cast(unsigned char, (i))


 /*
 ** non-return type
 */
 #if defined(__GNUC__)
 #define l_noret		void __attribute__((noreturn))
 #elif defined(_MSC_VER)
 #define l_noret		void __declspec(noreturn)
 #else
 #define l_noret		void
 #endif


 /*
 ** maximum depth for nested C calls and syntactical nested non-terminals
 ** in a program. (Value must fit in an unsigned short int.)
 */
 #if !defined(LUAI_MAXCCALLS)
 #define LUAI_MAXCCALLS		200
 #endif

 /*
 ** maximum number of upvalues in a closure (both C and Lua). (Value
 ** must fit in an unsigned char.)
 */
 #define MAXUPVAL	UCHAR_MAX


 /*
 ** 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) */
 #if !defined(MINSTRTABSIZE)
 #define MINSTRTABSIZE	32
 #endif


 /* minimum size for string buffer */
 #if !defined(LUA_MINBUFFER)
 #define LUA_MINBUFFER	32
 #endif


 #if !defined(lua_lock)
 #define lua_lock(L)     ((void) 0)
 #define lua_unlock(L)   ((void) 0)
 #endif

 #if !defined(luai_threadyield)
 #define luai_threadyield(L)     {lua_unlock(L); lua_lock(L);}
 #endif


 /*
 ** these macros allow user-specific actions on threads when you defined
 ** LUAI_EXTRASPACE and need to do something extra when a thread is
 ** created/deleted/resumed/yielded.
 */
 #if !defined(luai_userstateopen)
 #define luai_userstateopen(L)		((void)L)
 #endif

 #if !defined(luai_userstateclose)
 #define luai_userstateclose(L)		((void)L)
 #endif

 #if !defined(luai_userstatethread)
 #define luai_userstatethread(L,L1)	((void)L)
 #endif

 #if !defined(luai_userstatefree)
 #define luai_userstatefree(L,L1)	((void)L)
 #endif

 #if !defined(luai_userstateresume)
 #define luai_userstateresume(L,n)       ((void)L)
 #endif

 #if !defined(luai_userstateyield)
 #define luai_userstateyield(L,n)        ((void)L)
 #endif

 /*
 ** lua_number2int is a macro to convert lua_Number to int.
 ** lua_number2integer is a macro to convert lua_Number to lua_Integer.
 ** lua_number2unsigned is a macro to convert a lua_Number to a lua_Unsigned.
 ** lua_unsigned2number is a macro to convert a lua_Unsigned to a lua_Number.
 ** luai_hashnum is a macro to hash a lua_Number value into an integer.
 ** The hash must be deterministic and give reasonable values for
 ** both small and large values (outside the range of integers).
 */

 #if defined(MS_ASMTRICK) || defined(LUA_MSASMTRICK)	/* { */
 /* trick with Microsoft assembler for X86 */

 #define lua_number2int(i,n)  __asm {__asm fld n   __asm fistp i}
 #define lua_number2integer(i,n)		lua_number2int(i, n)
 #define lua_number2unsigned(i,n)  \
   {__int64 l; __asm {__asm fld n   __asm fistp l} i = (unsigned int)l;}


 #elif defined(LUA_IEEE754TRICK)		/* }{ */
 /* the next trick should work on any machine using IEEE754 with
    a 32-bit int type */

 union luai_Cast { double l_d; LUA_INT32 l_p[2]; };

 #if !defined(LUA_IEEEENDIAN)	/* { */
 #define LUAI_EXTRAIEEE	\
   static const union luai_Cast ieeeendian = {-(33.0 + 6755399441055744.0)};
 #define LUA_IEEEENDIANLOC	(ieeeendian.l_p[1] == 33)
 #else
 #define LUA_IEEEENDIANLOC	LUA_IEEEENDIAN
 #define LUAI_EXTRAIEEE		/* empty */
 #endif				/* } */

 #define lua_number2int32(i,n,t) \
   { LUAI_EXTRAIEEE \
     volatile union luai_Cast u; u.l_d = (n) + 6755399441055744.0; \
     (i) = (t)u.l_p[LUA_IEEEENDIANLOC]; }

 #define luai_hashnum(i,n)  \
   { volatile union luai_Cast u; u.l_d = (n) + 1.0;  /* avoid -0 */ \
     (i) = u.l_p[0]; (i) += u.l_p[1]; }  /* add double bits for his hash */

 #define lua_number2int(i,n)		lua_number2int32(i, n, int)
 #define lua_number2unsigned(i,n)	lua_number2int32(i, n, lua_Unsigned)

 /* the trick can be expanded to lua_Integer when it is a 32-bit value */
 #if defined(LUA_IEEELL)
 #define lua_number2integer(i,n)		lua_number2int32(i, n, lua_Integer)
 #endif

 #endif				/* } */


 /* the following definitions always work, but may be slow */

 #if !defined(lua_number2int)
 #define lua_number2int(i,n)	((i)=(int)(n))
 #endif

 #if !defined(lua_number2integer)
 #define lua_number2integer(i,n)	((i)=(lua_Integer)(n))
 #endif

 #if !defined(lua_number2unsigned)	/* { */
 /* the following definition assures proper modulo behavior */
 #if defined(LUA_NUMBER_DOUBLE) || defined(LUA_NUMBER_FLOAT)
 #include <math.h>
 #define SUPUNSIGNED	((lua_Number)(~(lua_Unsigned)0) + 1)
 #define lua_number2unsigned(i,n)  \
 	((i)=(lua_Unsigned)((n) - floor((n)/SUPUNSIGNED)*SUPUNSIGNED))
 #else
 #define lua_number2unsigned(i,n)	((i)=(lua_Unsigned)(n))
 #endif
 #endif				/* } */


 #if !defined(lua_unsigned2number)
 /* on several machines, coercion from unsigned to double is slow,
    so it may be worth to avoid */
 #define lua_unsigned2number(u)  \
     (((u) <= (lua_Unsigned)INT_MAX) ? (lua_Number)(int)(u) : (lua_Number)(u))
 #endif


 #if defined(ltable_c) && !defined(luai_hashnum)

 #include <float.h>
 #include <math.h>

 #define luai_hashnum(i,n) { int e;  \
   n = l_mathop(frexp)(n, &e) * (lua_Number)(INT_MAX - DBL_MAX_EXP);  \
   lua_number2int(i, n); i += e; }

 #endif


 /*
 ** macro to control inclusion of some hard tests on stack reallocation
 */
 #if !defined(HARDSTACKTESTS)
 #define condmovestack(L)	((void)0)
 #else
 /* realloc stack keeping its size */
 #define condmovestack(L)	luaD_reallocstack((L), (L)->stacksize)
 #endif

 #if !defined(HARDMEMTESTS)
 #define condchangemem(L)	condmovestack(L)
 #else
 #define condchangemem(L)  \
 	((void)(!(G(L)->gcrunning) || (luaC_fullgc(L, 0), 1)))
 #endif

 #endif
	/*
	** $Id: llimits.h,v 1.103.1.1 2013/04/12 18:48:47 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 unsigned LUA_INT32 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_LMEM ((l_mem) ((MAX_LUMEM >> 1) - 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 */
	#if !defined(LUAI_USER_ALIGNMENT_T)
	#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
	#endif

	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 */
	#if defined(lua_assert)
	#define check_exp(c,e) (lua_assert(c), (e))
	/* to avoid problems with conditions too long */
	#define lua_longassert(c) { if (!(c)) lua_assert(0); }
	#else
	#define lua_assert(c) ((void)0)
	#define check_exp(c,e) (e)
	#define lua_longassert(c) ((void)0)
	#endif

	/*
	** assertion for checking API calls
	*/
	#if !defined(luai_apicheck)

	#if defined(LUA_USE_APICHECK)
	#include <assert.h>
	#define luai_apicheck(L,e) assert(e)
	#else
	#define luai_apicheck(L,e) lua_assert(e)
	#endif

	#endif

	#define api_check(l,e,msg) luai_apicheck(l,(e) && msg)


	#if !defined(UNUSED)
	#define UNUSED(x) ((void)(x)) /* to avoid warnings */
	#endif


	#define cast(t, exp) ((t)(exp))

	#define cast_byte(i) cast(lu_byte, (i))
	#define cast_num(i) cast(lua_Number, (i))
	#define cast_int(i) cast(int, (i))
	#define cast_uchar(i) cast(unsigned char, (i))


	/*
	** non-return type
	*/
	#if defined(__GNUC__)
	#define l_noret void __attribute__((noreturn))
	#elif defined(_MSC_VER)
	#define l_noret void __declspec(noreturn)
	#else
	#define l_noret void
	#endif



	/*
	** maximum depth for nested C calls and syntactical nested non-terminals
	** in a program. (Value must fit in an unsigned short int.)
	*/
	#if !defined(LUAI_MAXCCALLS)
	#define LUAI_MAXCCALLS 200
	#endif

	/*
	** maximum number of upvalues in a closure (both C and Lua). (Value
	** must fit in an unsigned char.)
	*/
	#define MAXUPVAL UCHAR_MAX


	/*
	** 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) */
	#if !defined(MINSTRTABSIZE)
	#define MINSTRTABSIZE 32
	#endif


	/* minimum size for string buffer */
	#if !defined(LUA_MINBUFFER)
	#define LUA_MINBUFFER 32
	#endif


	#if !defined(lua_lock)
	#define lua_lock(L) ((void) 0)
	#define lua_unlock(L) ((void) 0)
	#endif

	#if !defined(luai_threadyield)
	#define luai_threadyield(L) {lua_unlock(L); lua_lock(L);}
	#endif


	/*
	** these macros allow user-specific actions on threads when you defined
	** LUAI_EXTRASPACE and need to do something extra when a thread is
	** created/deleted/resumed/yielded.
	*/
	#if !defined(luai_userstateopen)
	#define luai_userstateopen(L) ((void)L)
	#endif

	#if !defined(luai_userstateclose)
	#define luai_userstateclose(L) ((void)L)
	#endif

	#if !defined(luai_userstatethread)
	#define luai_userstatethread(L,L1) ((void)L)
	#endif

	#if !defined(luai_userstatefree)
	#define luai_userstatefree(L,L1) ((void)L)
	#endif

	#if !defined(luai_userstateresume)
	#define luai_userstateresume(L,n) ((void)L)
	#endif

	#if !defined(luai_userstateyield)
	#define luai_userstateyield(L,n) ((void)L)
	#endif

	/*
	** lua_number2int is a macro to convert lua_Number to int.
	** lua_number2integer is a macro to convert lua_Number to lua_Integer.
	** lua_number2unsigned is a macro to convert a lua_Number to a lua_Unsigned.
	** lua_unsigned2number is a macro to convert a lua_Unsigned to a lua_Number.
	** luai_hashnum is a macro to hash a lua_Number value into an integer.
	** The hash must be deterministic and give reasonable values for
	** both small and large values (outside the range of integers).
	*/

	#if defined(MS_ASMTRICK) \|\| defined(LUA_MSASMTRICK) /* { */
	/* trick with Microsoft assembler for X86 */

	#define lua_number2int(i,n) __asm {__asm fld n __asm fistp i}
	#define lua_number2integer(i,n) lua_number2int(i, n)
	#define lua_number2unsigned(i,n) \
	{__int64 l; __asm {__asm fld n __asm fistp l} i = (unsigned int)l;}


	#elif defined(LUA_IEEE754TRICK) /* }{ */
	/* the next trick should work on any machine using IEEE754 with
	a 32-bit int type */

	union luai_Cast { double l_d; LUA_INT32 l_p[2]; };

	#if !defined(LUA_IEEEENDIAN) /* { */
	#define LUAI_EXTRAIEEE \
	static const union luai_Cast ieeeendian = {-(33.0 + 6755399441055744.0)};
	#define LUA_IEEEENDIANLOC (ieeeendian.l_p[1] == 33)
	#else
	#define LUA_IEEEENDIANLOC LUA_IEEEENDIAN
	#define LUAI_EXTRAIEEE /* empty */
	#endif /* } */

	#define lua_number2int32(i,n,t) \
	{ LUAI_EXTRAIEEE \
	volatile union luai_Cast u; u.l_d = (n) + 6755399441055744.0; \
	(i) = (t)u.l_p[LUA_IEEEENDIANLOC]; }

	#define luai_hashnum(i,n) \
	{ volatile union luai_Cast u; u.l_d = (n) + 1.0; /* avoid -0 */ \
	(i) = u.l_p[0]; (i) += u.l_p[1]; } /* add double bits for his hash */

	#define lua_number2int(i,n) lua_number2int32(i, n, int)
	#define lua_number2unsigned(i,n) lua_number2int32(i, n, lua_Unsigned)

	/* the trick can be expanded to lua_Integer when it is a 32-bit value */
	#if defined(LUA_IEEELL)
	#define lua_number2integer(i,n) lua_number2int32(i, n, lua_Integer)
	#endif

	#endif /* } */


	/* the following definitions always work, but may be slow */

	#if !defined(lua_number2int)
	#define lua_number2int(i,n) ((i)=(int)(n))
	#endif

	#if !defined(lua_number2integer)
	#define lua_number2integer(i,n) ((i)=(lua_Integer)(n))
	#endif

	#if !defined(lua_number2unsigned) /* { */
	/* the following definition assures proper modulo behavior */
	#if defined(LUA_NUMBER_DOUBLE) \|\| defined(LUA_NUMBER_FLOAT)
	#include <math.h>
	#define SUPUNSIGNED ((lua_Number)(~(lua_Unsigned)0) + 1)
	#define lua_number2unsigned(i,n) \
	((i)=(lua_Unsigned)((n) - floor((n)/SUPUNSIGNED)*SUPUNSIGNED))
	#else
	#define lua_number2unsigned(i,n) ((i)=(lua_Unsigned)(n))
	#endif
	#endif /* } */


	#if !defined(lua_unsigned2number)
	/* on several machines, coercion from unsigned to double is slow,
	so it may be worth to avoid */
	#define lua_unsigned2number(u) \
	(((u) <= (lua_Unsigned)INT_MAX) ? (lua_Number)(int)(u) : (lua_Number)(u))
	#endif



	#if defined(ltable_c) && !defined(luai_hashnum)

	#include <float.h>
	#include <math.h>

	#define luai_hashnum(i,n) { int e; \
	n = l_mathop(frexp)(n, &e) * (lua_Number)(INT_MAX - DBL_MAX_EXP); \
	lua_number2int(i, n); i += e; }

	#endif



	/*
	** macro to control inclusion of some hard tests on stack reallocation
	*/
	#if !defined(HARDSTACKTESTS)
	#define condmovestack(L) ((void)0)
	#else
	/* realloc stack keeping its size */
	#define condmovestack(L) luaD_reallocstack((L), (L)->stacksize)
	#endif

	#if !defined(HARDMEMTESTS)
	#define condchangemem(L) condmovestack(L)
	#else
	#define condchangemem(L) \
	((void)(!(G(L)->gcrunning) \|\| (luaC_fullgc(L, 0), 1)))
	#endif

	#endif