lua-rs 0.0.11

/*
** $Id: luaconf.h,v 1.259.1.1 2017/04/19 17:29:57 roberto Exp $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/


#ifndef luaconf_h
#define luaconf_h

#include <limits.h>
#include <stddef.h>


/*
** ===================================================================
** Search for "@@" to find all configurable definitions.
** ===================================================================
*/


/*
** {====================================================================
** System Configuration: macros to adapt (if needed) Lua to some
** particular platform, for instance compiling it with 32-bit numbers.
** =====================================================================
*/

/*
** By default, Lua on Windows use (some) specific Windows features
*/
#if defined(_WIN32) && !defined(_WIN32_WCE)
#define LUA_USE_WINDOWS  /* enable goodies for regular Windows */
#endif


#if defined(LUA_USE_LINUX)
#define LUA_USE_POSIX
#endif


#if defined(LUA_USE_MACOSX)
#define LUA_USE_POSIX
#endif


/* avoid undefined shifts */
#if ((INT_MAX >> 15) >> 15) == 0
#error "Compiler does not support 32-bit 'int'."
#endif

/* }================================================================== */




/*
** {==================================================================
** Configuration for Paths.
** ===================================================================
*/

/*
** LUA_PATH_SEP is the character that separates templates in a path.
** LUA_PATH_MARK is the string that marks the substitution points in a
** template.
** LUA_EXEC_DIR in a Windows path is replaced by the executable's
** directory.
*/
#define LUA_PATH_SEP            ";"
#define LUA_PATH_MARK           "?"
#define LUA_EXEC_DIR            "!"


/*
@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
** Lua libraries.
@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
** C libraries.
** CHANGE them if your machine has a non-conventional directory
** hierarchy or if you want to install your libraries in
** non-conventional directories.
*/
#define LUA_VDIR	LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
#if defined(_WIN32)	/* { */
/*
** In Windows, any exclamation mark ('!') in the path is replaced by the
** path of the directory of the executable file of the current process.
*/
#define LUA_LDIR	"!\\lua\\"
#define LUA_CDIR	"!\\"
#define LUA_SHRDIR	"!\\..\\share\\lua\\" LUA_VDIR "\\"
#define LUA_PATH_DEFAULT  \
		LUA_LDIR"?.lua;"  LUA_LDIR"?\\init.lua;" \
		LUA_CDIR"?.lua;"  LUA_CDIR"?\\init.lua;" \
		LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \
		".\\?.lua;" ".\\?\\init.lua"
#define LUA_CPATH_DEFAULT \
		LUA_CDIR"?.dll;" \
		LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \
		LUA_CDIR"loadall.dll;" ".\\?.dll"

#else			/* }{ */

#define LUA_ROOT	"/usr/local/"
#define LUA_LDIR	LUA_ROOT "share/lua/" LUA_VDIR "/"
#define LUA_CDIR	LUA_ROOT "lib/lua/" LUA_VDIR "/"
#define LUA_PATH_DEFAULT  \
		LUA_LDIR"?.lua;"  LUA_LDIR"?/init.lua;" \
		LUA_CDIR"?.lua;"  LUA_CDIR"?/init.lua;" \
		"./?.lua;" "./?/init.lua"
#define LUA_CPATH_DEFAULT \
		LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so"
#endif			/* } */


/*
@@ LUA_DIRSEP is the directory separator (for submodules).
** CHANGE it if your machine does not use "/" as the directory separator
** and is not Windows. (On Windows Lua automatically uses "\".)
*/
#if defined(_WIN32)
#define LUA_DIRSEP	"\\"
#else
#define LUA_DIRSEP	"/"
#endif

/* }================================================================== */


/*
** {==================================================================
** Marks for exported symbols in the C code
** ===================================================================
*/

/*
@@ LUA_API is a mark for all core API functions.
@@ LUALIB_API is a mark for all auxiliary library functions.
@@ LUAMOD_API is a mark for all standard library opening functions.
** CHANGE them if you need to define those functions in some special way.
*/
#define LUA_API		extern


/* more often than not the libs go together with the core */
#define LUALIB_API	LUA_API
#define LUAMOD_API	LUALIB_API


/*
@@ LUAI_FUNC is a mark for all extern functions that are not to be
** exported to outside modules.
@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
** that are not to be exported to outside modules (LUAI_DDEF for
** definitions and LUAI_DDEC for declarations).
** CHANGE them if you need to mark them in some special way.
*/
#define LUAI_FUNC	extern

#define LUAI_DDEC	LUAI_FUNC
#define LUAI_DDEF	/* empty */

/* }================================================================== */



/*
** {==================================================================
** Configuration for Numbers.
** ===================================================================
*/

/*
@@ LUA_NUMBER is the floating-point type used by Lua.
@@ LUAI_UACNUMBER is the result of a 'default argument promotion'
@@ over a floating number.
@@ l_mathlim(x) corrects limit name 'x' to the proper float type
** by prefixing it with one of FLT/DBL/LDBL.
@@ LUA_NUMBER_FRMLEN is the length modifier for writing floats.
@@ LUA_NUMBER_FMT is the format for writing floats.
@@ lua_number2str converts a float to a string.
@@ l_mathop allows the addition of an 'l' or 'f' to all math operations.
@@ l_floor takes the floor of a float.
@@ lua_str2number converts a decimal numeric string to a number.
*/


/* The following definitions are good for most cases here */

#define l_floor(x)		(l_mathop(floor)(x))

#define lua_number2str(s,sz,n)  \
	l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n))

/*
@@ lua_numbertointeger converts a float number to an integer, or
** returns 0 if float is not within the range of a lua_Integer.
** (The range comparisons are tricky because of rounding. The tests
** here assume a two-complement representation, where MININTEGER always
** has an exact representation as a float; MAXINTEGER may not have one,
** and therefore its conversion to float may have an ill-defined value.)
*/
#define lua_numbertointeger(n,p) \
  ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \
   (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \
      (*(p) = (LUA_INTEGER)(n), 1))


#define LUA_NUMBER	double

#define l_mathlim(n)		(DBL_##n)

#define LUAI_UACNUMBER	double

#define LUA_NUMBER_FRMLEN	""
#define LUA_NUMBER_FMT		"%.14g"

#define l_mathop(op)		op

#define lua_str2number(s,p)	strtod((s), (p))



/*
@@ LUA_INTEGER is the integer type used by Lua.
**
@@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER.
**
@@ LUAI_UACINT is the result of a 'default argument promotion'
@@ over a lUA_INTEGER.
@@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers.
@@ LUA_INTEGER_FMT is the format for writing integers.
@@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER.
@@ LUA_MININTEGER is the minimum value for a LUA_INTEGER.
@@ lua_integer2str converts an integer to a string.
*/


/* The following definitions are good for most cases here */

#define LUA_INTEGER_FMT		"%" LUA_INTEGER_FRMLEN "d"

#define LUAI_UACINT		LUA_INTEGER

#define lua_integer2str(s,sz,n)  \
	l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n))

/*
** use LUAI_UACINT here to avoid problems with promotions (which
** can turn a comparison between unsigneds into a signed comparison)
*/
#define LUA_UNSIGNED		unsigned LUAI_UACINT


#if defined(LLONG_MAX)		/* { */

#define LUA_INTEGER		long long
#define LUA_INTEGER_FRMLEN	"ll"

#define LUA_MAXINTEGER		LLONG_MAX
#define LUA_MININTEGER		LLONG_MIN

#else				/* }{ */

#error "Compiler does not support 'long long'."

#endif				/* } */

/* }================================================================== */


/*
** {==================================================================
** Dependencies with C99 and other C details
** ===================================================================
*/

/*
@@ l_sprintf is equivalent to 'snprintf'.
** (All uses in Lua have only one format item.)
*/
#define l_sprintf(s,sz,f,i)	snprintf(s,sz,f,i)


/*
@@ lua_strx2number converts an hexadecimal numeric string to a number.
** In C99, 'strtod' does that conversion. Otherwise, you can
** leave 'lua_strx2number' undefined and Lua will provide its own
** implementation.
*/
#define lua_strx2number(s,p)		lua_str2number(s,p)


/*
@@ lua_pointer2str converts a pointer to a readable string in a
** non-specified way.
*/
#define lua_pointer2str(buff,sz,p)	l_sprintf(buff,sz,"%p",p)


/*
@@ lua_number2strx converts a float to an hexadecimal numeric string.
** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that.
** Otherwise, you can leave 'lua_number2strx' undefined and Lua will
** provide its own implementation.
*/
#define lua_number2strx(L,b,sz,f,n)  \
	((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n)))


/*
@@ LUA_KCONTEXT is the type of the context ('ctx') for continuation
** functions.  It must be a numerical type; Lua will use 'intptr_t' if
** available, otherwise it will use 'ptrdiff_t'.
*/
#define LUA_KCONTEXT	ptrdiff_t

#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#include <stdint.h>
#if defined(INTPTR_MAX)  /* even in C99 this type is optional */
#undef LUA_KCONTEXT
#define LUA_KCONTEXT	intptr_t
#endif
#endif


/*
@@ lua_getlocaledecpoint gets the locale "radix character" (decimal point).
** Change that if you do not want to use C locales. (Code using this
** macro must include header 'locale.h'.)
*/
#if !defined(lua_getlocaledecpoint)
#define lua_getlocaledecpoint()		(localeconv()->decimal_point[0])
#endif

/* }================================================================== */


/*
** {==================================================================
** Language Variations
** =====================================================================
*/

/*
@@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some
** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from
** numbers to strings. Define LUA_NOCVTS2N to turn off automatic
** coercion from strings to numbers.
*/
/* #define LUA_NOCVTN2S */
/* #define LUA_NOCVTS2N */


/*
@@ LUA_USE_APICHECK turns on several consistency checks on the C API.
** Define it as a help when debugging C code.
*/
#if defined(LUA_USE_APICHECK)
#include <assert.h>
#define luai_apicheck(l,e)	assert(e)
#endif

/* }================================================================== */


/*
** {==================================================================
** Macros that affect the API and must be stable (that is, must be the
** same when you compile Lua and when you compile code that links to
** Lua). You probably do not want/need to change them.
** =====================================================================
*/

/*
@@ LUAI_MAXSTACK limits the size of the Lua stack.
** CHANGE it if you need a different limit. This limit is arbitrary;
** its only purpose is to stop Lua from consuming unlimited stack
** space (and to reserve some numbers for pseudo-indices).
*/
#define LUAI_MAXSTACK		1000000


/*
@@ LUA_EXTRASPACE defines the size of a raw memory area associated with
** a Lua state with very fast access.
** CHANGE it if you need a different size.
*/
#define LUA_EXTRASPACE		(sizeof(void *))


/*
@@ LUA_IDSIZE gives the maximum size for the description of the source
@@ of a function in debug information.
** CHANGE it if you want a different size.
*/
#define LUA_IDSIZE	60


/*
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
** CHANGE it if it uses too much C-stack space. (For long double,
** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a
** smaller buffer would force a memory allocation for each call to
** 'string.format'.)
*/
#define LUAL_BUFFERSIZE   ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer)))

/* }================================================================== */


/*
@@ LUA_QL describes how error messages quote program elements.
** Lua does not use these macros anymore; they are here for
** compatibility only.
*/
#define LUA_QL(x)	"'" x "'"
#define LUA_QS		LUA_QL("%s")




/* =================================================================== */

/*
** Local configuration. You can use this space to add your redefinitions
** without modifying the main part of the file.
*/





#endif