768 lines
21 KiB
C
768 lines
21 KiB
C
/*
|
|
** $Id: luaconf.h,v 1.254 2015/10/21 18:17:40 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 or
|
|
** restricting it to C89.
|
|
** =====================================================================
|
|
*/
|
|
|
|
/*
|
|
@@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. You
|
|
** can also define LUA_32BITS in the make file, but changing here you
|
|
** ensure that all software connected to Lua will be compiled with the
|
|
** same configuration.
|
|
*/
|
|
/* #define LUA_32BITS */
|
|
|
|
|
|
/*
|
|
@@ LUA_USE_C89 controls the use of non-ISO-C89 features.
|
|
** Define it if you want Lua to avoid the use of a few C99 features
|
|
** or Windows-specific features on Windows.
|
|
*/
|
|
/* #define LUA_USE_C89 */
|
|
|
|
|
|
/*
|
|
** By default, Lua on Windows use (some) specific Windows features
|
|
*/
|
|
#if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE)
|
|
#define LUA_USE_WINDOWS /* enable goodies for regular Windows */
|
|
#endif
|
|
|
|
|
|
#if defined(LUA_USE_WINDOWS)
|
|
#define LUA_DL_DLL /* enable support for DLL */
|
|
#define LUA_USE_C89 /* broadly, Windows is C89 */
|
|
#endif
|
|
|
|
|
|
#if defined(LUA_USE_LINUX)
|
|
#define LUA_USE_POSIX
|
|
#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
|
|
#define LUA_USE_READLINE /* needs some extra libraries */
|
|
#endif
|
|
|
|
|
|
#if defined(LUA_USE_MACOSX)
|
|
#define LUA_USE_POSIX
|
|
#define LUA_USE_DLOPEN /* MacOS does not need -ldl */
|
|
#define LUA_USE_READLINE /* needs an extra library: -lreadline */
|
|
#endif
|
|
|
|
|
|
/*
|
|
@@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for
|
|
** C89 ('long' and 'double'); Windows always has '__int64', so it does
|
|
** not need to use this case.
|
|
*/
|
|
#if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS)
|
|
#define LUA_C89_NUMBERS
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
@@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'.
|
|
*/
|
|
/* avoid undefined shifts */
|
|
#if ((INT_MAX >> 15) >> 15) >= 1
|
|
#define LUAI_BITSINT 32
|
|
#else
|
|
/* 'int' always must have at least 16 bits */
|
|
#define LUAI_BITSINT 16
|
|
#endif
|
|
|
|
|
|
/*
|
|
@@ LUA_INT_TYPE defines the type for Lua integers.
|
|
@@ LUA_FLOAT_TYPE defines the type for Lua floats.
|
|
** Lua should work fine with any mix of these options (if supported
|
|
** by your C compiler). The usual configurations are 64-bit integers
|
|
** and 'double' (the default), 32-bit integers and 'float' (for
|
|
** restricted platforms), and 'long'/'double' (for C compilers not
|
|
** compliant with C99, which may not have support for 'long long').
|
|
*/
|
|
|
|
/* predefined options for LUA_INT_TYPE */
|
|
#define LUA_INT_INT 1
|
|
#define LUA_INT_LONG 2
|
|
#define LUA_INT_LONGLONG 3
|
|
|
|
/* predefined options for LUA_FLOAT_TYPE */
|
|
#define LUA_FLOAT_FLOAT 1
|
|
#define LUA_FLOAT_DOUBLE 2
|
|
#define LUA_FLOAT_LONGDOUBLE 3
|
|
|
|
#if defined(LUA_32BITS) /* { */
|
|
/*
|
|
** 32-bit integers and 'float'
|
|
*/
|
|
#if LUAI_BITSINT >= 32 /* use 'int' if big enough */
|
|
#define LUA_INT_TYPE LUA_INT_INT
|
|
#else /* otherwise use 'long' */
|
|
#define LUA_INT_TYPE LUA_INT_LONG
|
|
#endif
|
|
#define LUA_FLOAT_TYPE LUA_FLOAT_FLOAT
|
|
|
|
#elif defined(LUA_C89_NUMBERS) /* }{ */
|
|
/*
|
|
** largest types available for C89 ('long' and 'double')
|
|
*/
|
|
#define LUA_INT_TYPE LUA_INT_LONG
|
|
#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE
|
|
|
|
#endif /* } */
|
|
|
|
|
|
/*
|
|
** default configuration for 64-bit Lua ('long long' and 'double')
|
|
*/
|
|
#if !defined(LUA_INT_TYPE)
|
|
#define LUA_INT_TYPE LUA_INT_LONGLONG
|
|
#endif
|
|
|
|
#if !defined(LUA_FLOAT_TYPE)
|
|
#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE
|
|
#endif
|
|
|
|
/* }================================================================== */
|
|
|
|
|
|
|
|
|
|
/*
|
|
** {==================================================================
|
|
** Configuration for Paths.
|
|
** ===================================================================
|
|
*/
|
|
|
|
/*
|
|
@@ 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.
|
|
** For instance, if you want to create one Windows DLL with the core and
|
|
** the libraries, you may want to use the following definition (define
|
|
** LUA_BUILD_AS_DLL to get it).
|
|
*/
|
|
#if defined(LUA_BUILD_AS_DLL) /* { */
|
|
|
|
#if defined(LUA_CORE) || defined(LUA_LIB) /* { */
|
|
#define LUA_API __declspec(dllexport)
|
|
#else /* }{ */
|
|
#define LUA_API __declspec(dllimport)
|
|
#endif /* } */
|
|
|
|
#else /* }{ */
|
|
|
|
#define LUA_API extern
|
|
|
|
#endif /* } */
|
|
|
|
|
|
/* 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. Elf/gcc
|
|
** (versions 3.2 and later) mark them as "hidden" to optimize access
|
|
** when Lua is compiled as a shared library. Not all elf targets support
|
|
** this attribute. Unfortunately, gcc does not offer a way to check
|
|
** whether the target offers that support, and those without support
|
|
** give a warning about it. To avoid these warnings, change to the
|
|
** default definition.
|
|
*/
|
|
#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
|
|
defined(__ELF__) /* { */
|
|
#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
|
|
#else /* }{ */
|
|
#define LUAI_FUNC extern
|
|
#endif /* } */
|
|
|
|
#define LUAI_DDEC LUAI_FUNC
|
|
#define LUAI_DDEF /* empty */
|
|
|
|
/* }================================================================== */
|
|
|
|
|
|
/*
|
|
** {==================================================================
|
|
** Compatibility with previous versions
|
|
** ===================================================================
|
|
*/
|
|
|
|
/*
|
|
@@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2.
|
|
@@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1.
|
|
** You can define it to get all options, or change specific options
|
|
** to fit your specific needs.
|
|
*/
|
|
#if defined(LUA_COMPAT_5_2) /* { */
|
|
|
|
/*
|
|
@@ LUA_COMPAT_MATHLIB controls the presence of several deprecated
|
|
** functions in the mathematical library.
|
|
*/
|
|
#define LUA_COMPAT_MATHLIB
|
|
|
|
/*
|
|
@@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'.
|
|
*/
|
|
#define LUA_COMPAT_BITLIB
|
|
|
|
/*
|
|
@@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod.
|
|
*/
|
|
#define LUA_COMPAT_IPAIRS
|
|
|
|
/*
|
|
@@ LUA_COMPAT_APIINTCASTS controls the presence of macros for
|
|
** manipulating other integer types (lua_pushunsigned, lua_tounsigned,
|
|
** luaL_checkint, luaL_checklong, etc.)
|
|
*/
|
|
#define LUA_COMPAT_APIINTCASTS
|
|
|
|
#endif /* } */
|
|
|
|
|
|
#if defined(LUA_COMPAT_5_1) /* { */
|
|
|
|
/* Incompatibilities from 5.2 -> 5.3 */
|
|
#define LUA_COMPAT_MATHLIB
|
|
#define LUA_COMPAT_APIINTCASTS
|
|
|
|
/*
|
|
@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
|
|
** You can replace it with 'table.unpack'.
|
|
*/
|
|
#define LUA_COMPAT_UNPACK
|
|
|
|
/*
|
|
@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
|
|
** You can replace it with 'package.searchers'.
|
|
*/
|
|
#define LUA_COMPAT_LOADERS
|
|
|
|
/*
|
|
@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
|
|
** You can call your C function directly (with light C functions).
|
|
*/
|
|
#define lua_cpcall(L,f,u) \
|
|
(lua_pushcfunction(L, (f)), \
|
|
lua_pushlightuserdata(L,(u)), \
|
|
lua_pcall(L,1,0,0))
|
|
|
|
|
|
/*
|
|
@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
|
|
** You can rewrite 'log10(x)' as 'log(x, 10)'.
|
|
*/
|
|
#define LUA_COMPAT_LOG10
|
|
|
|
/*
|
|
@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
|
|
** library. You can rewrite 'loadstring(s)' as 'load(s)'.
|
|
*/
|
|
#define LUA_COMPAT_LOADSTRING
|
|
|
|
/*
|
|
@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
|
|
*/
|
|
#define LUA_COMPAT_MAXN
|
|
|
|
/*
|
|
@@ The following macros supply trivial compatibility for some
|
|
** changes in the API. The macros themselves document how to
|
|
** change your code to avoid using them.
|
|
*/
|
|
#define lua_strlen(L,i) lua_rawlen(L, (i))
|
|
|
|
#define lua_objlen(L,i) lua_rawlen(L, (i))
|
|
|
|
#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ)
|
|
#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT)
|
|
|
|
/*
|
|
@@ LUA_COMPAT_MODULE controls compatibility with previous
|
|
** module functions 'module' (Lua) and 'luaL_register' (C).
|
|
*/
|
|
#define LUA_COMPAT_MODULE
|
|
|
|
#endif /* } */
|
|
|
|
|
|
/*
|
|
@@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a
|
|
@@ a float mark ('.0').
|
|
** This macro is not on by default even in compatibility mode,
|
|
** because this is not really an incompatibility.
|
|
*/
|
|
/* #define LUA_COMPAT_FLOATSTRING */
|
|
|
|
/* }================================================================== */
|
|
|
|
|
|
|
|
/*
|
|
** {==================================================================
|
|
** Configuration for Numbers.
|
|
** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_*
|
|
** satisfy your needs.
|
|
** ===================================================================
|
|
*/
|
|
|
|
/*
|
|
@@ LUA_NUMBER is the floating-point type used by Lua.
|
|
@@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
|
|
@@ 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, (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))
|
|
|
|
|
|
/* now the variable definitions */
|
|
|
|
#if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT /* { single float */
|
|
|
|
#define LUA_NUMBER float
|
|
|
|
#define l_mathlim(n) (FLT_##n)
|
|
|
|
#define LUAI_UACNUMBER double
|
|
|
|
#define LUA_NUMBER_FRMLEN ""
|
|
#define LUA_NUMBER_FMT "%.7g"
|
|
|
|
#define l_mathop(op) op##f
|
|
|
|
#define lua_str2number(s,p) strtof((s), (p))
|
|
|
|
|
|
#elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE /* }{ long double */
|
|
|
|
#define LUA_NUMBER long double
|
|
|
|
#define l_mathlim(n) (LDBL_##n)
|
|
|
|
#define LUAI_UACNUMBER long double
|
|
|
|
#define LUA_NUMBER_FRMLEN "L"
|
|
#define LUA_NUMBER_FMT "%.19Lg"
|
|
|
|
#define l_mathop(op) op##l
|
|
|
|
#define lua_str2number(s,p) strtold((s), (p))
|
|
|
|
#elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE /* }{ double */
|
|
|
|
#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))
|
|
|
|
#else /* }{ */
|
|
|
|
#error "numeric float type not defined"
|
|
|
|
#endif /* } */
|
|
|
|
|
|
|
|
/*
|
|
@@ LUA_INTEGER is the integer type used by Lua.
|
|
**
|
|
@@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER.
|
|
**
|
|
@@ LUAI_UACINT is the result of an 'usual argument conversion'
|
|
@@ 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 lua_integer2str(s,sz,n) l_sprintf((s), sz, LUA_INTEGER_FMT, (n))
|
|
|
|
#define LUAI_UACINT LUA_INTEGER
|
|
|
|
/*
|
|
** 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
|
|
|
|
|
|
/* now the variable definitions */
|
|
|
|
#if LUA_INT_TYPE == LUA_INT_INT /* { int */
|
|
|
|
#define LUA_INTEGER int
|
|
#define LUA_INTEGER_FRMLEN ""
|
|
|
|
#define LUA_MAXINTEGER INT_MAX
|
|
#define LUA_MININTEGER INT_MIN
|
|
|
|
#elif LUA_INT_TYPE == LUA_INT_LONG /* }{ long */
|
|
|
|
#define LUA_INTEGER long
|
|
#define LUA_INTEGER_FRMLEN "l"
|
|
|
|
#define LUA_MAXINTEGER LONG_MAX
|
|
#define LUA_MININTEGER LONG_MIN
|
|
|
|
#elif LUA_INT_TYPE == LUA_INT_LONGLONG /* }{ long long */
|
|
|
|
/* use presence of macro LLONG_MAX as proxy for C99 compliance */
|
|
#if defined(LLONG_MAX) /* { */
|
|
/* use ISO C99 stuff */
|
|
|
|
#define LUA_INTEGER long long
|
|
#define LUA_INTEGER_FRMLEN "ll"
|
|
|
|
#define LUA_MAXINTEGER LLONG_MAX
|
|
#define LUA_MININTEGER LLONG_MIN
|
|
|
|
#elif defined(LUA_USE_WINDOWS) /* }{ */
|
|
/* in Windows, can use specific Windows types */
|
|
|
|
#define LUA_INTEGER __int64
|
|
#define LUA_INTEGER_FRMLEN "I64"
|
|
|
|
#define LUA_MAXINTEGER _I64_MAX
|
|
#define LUA_MININTEGER _I64_MIN
|
|
|
|
#else /* }{ */
|
|
|
|
#error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \
|
|
or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)"
|
|
|
|
#endif /* } */
|
|
|
|
#else /* }{ */
|
|
|
|
#error "numeric integer type not defined"
|
|
|
|
#endif /* } */
|
|
|
|
/* }================================================================== */
|
|
|
|
|
|
/*
|
|
** {==================================================================
|
|
** Dependencies with C99 and other C details
|
|
** ===================================================================
|
|
*/
|
|
|
|
/*
|
|
@@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89.
|
|
** (All uses in Lua have only one format item.)
|
|
*/
|
|
#if !defined(LUA_USE_C89)
|
|
#define l_sprintf(s,sz,f,i) snprintf(s,sz,f,i)
|
|
#else
|
|
#define l_sprintf(s,sz,f,i) ((void)(sz), sprintf(s,f,i))
|
|
#endif
|
|
|
|
|
|
/*
|
|
@@ 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.
|
|
*/
|
|
#if !defined(LUA_USE_C89)
|
|
#define lua_strx2number(s,p) lua_str2number(s,p)
|
|
#endif
|
|
|
|
|
|
/*
|
|
@@ 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.
|
|
*/
|
|
#if !defined(LUA_USE_C89)
|
|
#define lua_number2strx(L,b,sz,f,n) l_sprintf(b,sz,f,n)
|
|
#endif
|
|
|
|
|
|
/*
|
|
** 'strtof' and 'opf' variants for math functions are not valid in
|
|
** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the
|
|
** availability of these variants. ('math.h' is already included in
|
|
** all files that use these macros.)
|
|
*/
|
|
#if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF))
|
|
#undef l_mathop /* variants not available */
|
|
#undef lua_str2number
|
|
#define l_mathop(op) (lua_Number)op /* no variant */
|
|
#define lua_str2number(s,p) ((lua_Number)strtod((s), (p)))
|
|
#endif
|
|
|
|
|
|
/*
|
|
@@ 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' (the nearest thing to
|
|
** 'intptr_t' in C89)
|
|
*/
|
|
#define LUA_KCONTEXT ptrdiff_t
|
|
|
|
#if !defined(LUA_USE_C89) && 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).
|
|
*/
|
|
#if LUAI_BITSINT >= 32
|
|
#define LUAI_MAXSTACK 1000000
|
|
#else
|
|
#define LUAI_MAXSTACK 15000
|
|
#endif
|
|
|
|
|
|
/*
|
|
@@ 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 ~5030 bytes, so a
|
|
** smaller buffer would force a memory allocation for each call to
|
|
** 'string.format'.)
|
|
*/
|
|
#if defined(LUA_FLOAT_LONGDOUBLE)
|
|
#define LUAL_BUFFERSIZE 8192
|
|
#else
|
|
#define LUAL_BUFFERSIZE ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer)))
|
|
#endif
|
|
|
|
/* }================================================================== */
|
|
|
|
|
|
/*
|
|
@@ 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
|
|
|