0,0 → 1,528 |
/* |
** $Id: luaconf.h,v 1.170 2011/12/06 16:58:36 roberto Exp $ |
** Configuration file for Lua |
** See Copyright Notice in lua.h |
*/ |
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#ifndef lconfig_h |
#define lconfig_h |
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#include <limits.h> |
#include <stddef.h> |
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/* |
** ================================================================== |
** Search for "@@" to find all configurable definitions. |
** =================================================================== |
*/ |
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/* |
@@ LUA_ANSI controls the use of non-ansi features. |
** CHANGE it (define it) if you want Lua to avoid the use of any |
** non-ansi feature or library. |
*/ |
#if !defined(LUA_ANSI) && defined(__STRICT_ANSI__) |
#define LUA_ANSI |
#endif |
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#if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE) |
#define LUA_WIN /* enable goodies for regular Windows platforms */ |
#endif |
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#if defined(LUA_WIN) |
#define LUA_DL_DLL |
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ |
#endif |
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#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 */ |
#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */ |
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ |
#define LUA_USE_LONGLONG /* assume support for long long */ |
#endif |
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#if defined(LUA_USE_MACOSX) |
#define LUA_USE_POSIX |
#define LUA_USE_DLOPEN /* does not need -ldl */ |
#define LUA_USE_READLINE /* needs an extra library: -lreadline */ |
#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */ |
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */ |
#define LUA_USE_LONGLONG /* assume support for long long */ |
#endif |
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/* |
@@ LUA_USE_POSIX includes all functionality listed as X/Open System |
@* Interfaces Extension (XSI). |
** CHANGE it (define it) if your system is XSI compatible. |
*/ |
#if defined(LUA_USE_POSIX) |
#define LUA_USE_MKSTEMP |
#define LUA_USE_ISATTY |
#define LUA_USE_POPEN |
#define LUA_USE_ULONGJMP |
#define LUA_USE_GMTIME_R |
#endif |
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/* |
@@ 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. |
*/ |
#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_PATH_DEFAULT \ |
LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ |
LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" ".\\?.lua" |
#define LUA_CPATH_DEFAULT \ |
LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll;" ".\\?.dll" |
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#else /* }{ */ |
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#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR "/" |
#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" |
#define LUA_CPATH_DEFAULT \ |
LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" |
#endif /* } */ |
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/* |
@@ 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 |
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/* |
@@ LUA_ENV is the name of the variable that holds the current |
@@ environment, used to access global names. |
** CHANGE it if you do not like this name. |
*/ |
#define LUA_ENV "_ENV" |
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/* |
@@ 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) /* { */ |
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#if defined(LUA_CORE) || defined(LUA_LIB) /* { */ |
#define LUA_API __declspec(dllexport) |
#else /* }{ */ |
#define LUA_API __declspec(dllimport) |
#endif /* } */ |
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#else /* }{ */ |
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#define LUA_API extern |
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#endif /* } */ |
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/* more often than not the libs go together with the core */ |
#define LUALIB_API LUA_API |
#define LUAMOD_API LUALIB_API |
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/* |
@@ 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 |
#define LUAI_DDEC LUAI_FUNC |
#define LUAI_DDEF /* empty */ |
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#else /* }{ */ |
#define LUAI_FUNC extern |
#define LUAI_DDEC extern |
#define LUAI_DDEF /* empty */ |
#endif /* } */ |
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/* |
@@ LUA_QL describes how error messages quote program elements. |
** CHANGE it if you want a different appearance. |
*/ |
#define LUA_QL(x) "'" x "'" |
#define LUA_QS LUA_QL("%s") |
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/* |
@@ 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 |
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/* |
@@ luai_writestring/luai_writeline define how 'print' prints its results. |
** They are only used in libraries and the stand-alone program. (The #if |
** avoids including 'stdio.h' everywhere.) |
*/ |
#if defined(LUA_LIB) || defined(lua_c) |
#include <stdio.h> |
#define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout) |
#define luai_writeline() (luai_writestring("\n", 1), fflush(stdout)) |
#endif |
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/* |
@@ luai_writestringerror defines how to print error messages. |
** (A format string with one argument is enough for Lua...) |
*/ |
#define luai_writestringerror(s,p) \ |
(fprintf(stderr, (s), (p)), fflush(stderr)) |
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/* |
** {================================================================== |
** Compatibility with previous versions |
** =================================================================== |
*/ |
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/* |
@@ LUA_COMPAT_ALL controls all compatibility options. |
** You can define it to get all options, or change specific options |
** to fit your specific needs. |
*/ |
#if defined(LUA_COMPAT_ALL) /* { */ |
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/* |
@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. |
** You can replace it with 'table.unpack'. |
*/ |
#define LUA_COMPAT_UNPACK |
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/* |
@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. |
** You can replace it with 'package.searchers'. |
*/ |
#define LUA_COMPAT_LOADERS |
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/* |
@@ 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)) |
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/* |
@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. |
** You can rewrite 'log10(x)' as 'log(x, 10)'. |
*/ |
#define LUA_COMPAT_LOG10 |
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/* |
@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base |
** library. You can rewrite 'loadstring(s)' as 'load(s)'. |
*/ |
#define LUA_COMPAT_LOADSTRING |
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/* |
@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. |
*/ |
#define LUA_COMPAT_MAXN |
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/* |
@@ 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)) |
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#define lua_objlen(L,i) lua_rawlen(L, (i)) |
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#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) |
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/* |
@@ LUA_COMPAT_MODULE controls compatibility with previous |
** module functions 'module' (Lua) and 'luaL_register' (C). |
*/ |
#define LUA_COMPAT_MODULE |
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#endif /* } */ |
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/* }================================================================== */ |
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/* |
@@ LUAI_BITSINT defines the number of bits in an int. |
** CHANGE here if Lua cannot automatically detect the number of bits of |
** your machine. Probably you do not need to change this. |
*/ |
/* avoid overflows in comparison */ |
#if INT_MAX-20 < 32760 /* { */ |
#define LUAI_BITSINT 16 |
#elif INT_MAX > 2147483640L /* }{ */ |
/* int has at least 32 bits */ |
#define LUAI_BITSINT 32 |
#else /* }{ */ |
#error "you must define LUA_BITSINT with number of bits in an integer" |
#endif /* } */ |
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/* |
@@ LUA_INT32 is an signed integer with exactly 32 bits. |
@@ LUAI_UMEM is an unsigned integer big enough to count the total |
@* memory used by Lua. |
@@ LUAI_MEM is a signed integer big enough to count the total memory |
@* used by Lua. |
** CHANGE here if for some weird reason the default definitions are not |
** good enough for your machine. Probably you do not need to change |
** this. |
*/ |
#if LUAI_BITSINT >= 32 /* { */ |
#define LUA_INT32 int |
#define LUAI_UMEM size_t |
#define LUAI_MEM ptrdiff_t |
#else /* }{ */ |
/* 16-bit ints */ |
#define LUA_INT32 long |
#define LUAI_UMEM unsigned long |
#define LUAI_MEM long |
#endif /* } */ |
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/* |
@@ 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 to consume 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 |
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/* reserve some space for error handling */ |
#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000) |
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/* |
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. |
** CHANGE it if it uses too much C-stack space. |
*/ |
#define LUAL_BUFFERSIZE BUFSIZ |
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/* |
** {================================================================== |
@@ LUA_NUMBER is the type of numbers in Lua. |
** CHANGE the following definitions only if you want to build Lua |
** with a number type different from double. You may also need to |
** change lua_number2int & lua_number2integer. |
** =================================================================== |
*/ |
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#define LUA_NUMBER_DOUBLE |
#define LUA_NUMBER double |
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/* |
@@ LUAI_UACNUMBER is the result of an 'usual argument conversion' |
@* over a number. |
*/ |
#define LUAI_UACNUMBER double |
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/* |
@@ LUA_NUMBER_SCAN is the format for reading numbers. |
@@ LUA_NUMBER_FMT is the format for writing numbers. |
@@ lua_number2str converts a number to a string. |
@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion. |
*/ |
#define LUA_NUMBER_SCAN "%lf" |
#define LUA_NUMBER_FMT "%.14g" |
#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) |
#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */ |
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/* |
@@ lua_str2number converts a decimal numeric string to a number. |
@@ lua_strx2number converts an hexadecimal numeric string to a number. |
** In C99, 'strtod' do both conversions. C89, however, has no function |
** to convert floating hexadecimal strings to numbers. For these |
** systems, you can leave 'lua_strx2number' undefined and Lua will |
** provide its own implementation. |
*/ |
#define lua_str2number(s,p) strtod((s), (p)) |
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#if defined(LUA_USE_STRTODHEX) |
#define lua_strx2number(s,p) strtod((s), (p)) |
#endif |
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/* |
@@ The luai_num* macros define the primitive operations over numbers. |
*/ |
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/* the following operations need the math library */ |
#if defined(lobject_c) || defined(lvm_c) |
#include <math.h> |
#define luai_nummod(L,a,b) ((a) - floor((a)/(b))*(b)) |
#define luai_numpow(L,a,b) (pow(a,b)) |
#endif |
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/* these are quite standard operations */ |
#if defined(LUA_CORE) |
#define luai_numadd(L,a,b) ((a)+(b)) |
#define luai_numsub(L,a,b) ((a)-(b)) |
#define luai_nummul(L,a,b) ((a)*(b)) |
#define luai_numdiv(L,a,b) ((a)/(b)) |
#define luai_numunm(L,a) (-(a)) |
#define luai_numeq(a,b) ((a)==(b)) |
#define luai_numlt(L,a,b) ((a)<(b)) |
#define luai_numle(L,a,b) ((a)<=(b)) |
#define luai_numisnan(L,a) (!luai_numeq((a), (a))) |
#endif |
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/* |
@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger. |
** CHANGE that if ptrdiff_t is not adequate on your machine. (On most |
** machines, ptrdiff_t gives a good choice between int or long.) |
*/ |
#define LUA_INTEGER ptrdiff_t |
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/* |
@@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned. |
** It must have at least 32 bits. |
*/ |
#define LUA_UNSIGNED unsigned LUA_INT32 |
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#if defined(LUA_CORE) /* { */ |
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#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */ |
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/* On a Microsoft compiler on a Pentium, use assembler to avoid clashes |
with a DirectX idiosyncrasy */ |
#if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */ |
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#define MS_ASMTRICK |
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#else /* }{ */ |
/* the next definition uses a trick that should work on any machine |
using IEEE754 with a 32-bit integer type */ |
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#define LUA_IEEE754TRICK |
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/* |
@@ LUA_IEEEENDIAN is the endianness of doubles in your machine |
** (0 for little endian, 1 for big endian); if not defined, Lua will |
** check it dynamically. |
*/ |
/* check for known architectures */ |
#if defined(__i386__) || defined(__i386) || defined(__X86__) || \ |
defined (__x86_64) |
#define LUA_IEEEENDIAN 0 |
#elif defined(__POWERPC__) || defined(__ppc__) |
#define LUA_IEEEENDIAN 1 |
#endif |
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#endif /* } */ |
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#endif /* } */ |
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#endif /* } */ |
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/* }================================================================== */ |
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/* |
@@ LUA_NANTRICK_LE/LUA_NANTRICK_BE controls the use of a trick to |
** pack all types into a single double value, using NaN values to |
** represent non-number values. The trick only works on 32-bit machines |
** (ints and pointers are 32-bit values) with numbers represented as |
** IEEE 754-2008 doubles with conventional endianess (12345678 or |
** 87654321), in CPUs that do not produce signaling NaN values (all NaNs |
** are quiet). |
*/ |
#if defined(LUA_CORE) && \ |
defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */ |
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/* little-endian architectures that satisfy those conditions */ |
#if defined(__i386__) || defined(__i386) || defined(__X86__) || \ |
defined(_M_IX86) |
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#define LUA_NANTRICK_LE |
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#endif |
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#endif /* } */ |
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/* =================================================================== */ |
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/* |
** Local configuration. You can use this space to add your redefinitions |
** without modifying the main part of the file. |
*/ |
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#endif |
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