luaconf.h 18 KB

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  1. /*
  2. ** $Id: luaconf.h,v 1.211 2014/07/24 14:00:16 roberto Exp roberto $
  3. ** Configuration file for Lua
  4. ** See Copyright Notice in lua.h
  5. */
  6. #ifndef lconfig_h
  7. #define lconfig_h
  8. #include <limits.h>
  9. #include <stddef.h>
  10. /*
  11. ** ==================================================================
  12. ** Search for "@@" to find all configurable definitions.
  13. ** ===================================================================
  14. */
  15. /*
  16. ** ===================================================================
  17. @@ LUA_INT_INT / LUA_INT_LONG / LUA_INT_LONGLONG defines type for
  18. @@ Lua integers;
  19. @@ LUA_REAL_FLOAT / LUA_REAL_DOUBLE / LUA_REAL_LONGDOUBLE defines
  20. @@ type for Lua floats.
  21. **
  22. ** These definitions set the numeric types for Lua. Lua should work
  23. ** fine with any mix of these previous options.
  24. ** The usual configurations are 64-bit integers and floats (the default)
  25. ** and 32-bit integers and floats (Small Lua, for restricted hardware).
  26. ** =====================================================================
  27. */
  28. #define LUA_INT_LONGLONG
  29. #define LUA_REAL_DOUBLE
  30. /*
  31. @@ LUA_ANSI controls the use of non-ansi features.
  32. ** CHANGE it (define it) if you want Lua to avoid the use of any
  33. ** non-ansi feature or library.
  34. */
  35. #if !defined(LUA_ANSI) && defined(__STRICT_ANSI__)
  36. #define LUA_ANSI
  37. #endif
  38. #if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE)
  39. #define LUA_WIN /* enable goodies for regular Windows platforms */
  40. #endif
  41. #if defined(LUA_WIN)
  42. #define LUA_DL_DLL
  43. #define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
  44. #endif
  45. #if defined(LUA_USE_LINUX)
  46. #define LUA_USE_C99
  47. #define LUA_USE_POSIX
  48. #define LUA_USE_DLOPEN /* needs an extra library: -ldl */
  49. #define LUA_USE_READLINE /* needs some extra libraries */
  50. #endif
  51. #if defined(LUA_USE_MACOSX)
  52. #define LUA_USE_C99
  53. #define LUA_USE_POSIX
  54. #define LUA_USE_DLOPEN /* does not need -ldl */
  55. #define LUA_USE_READLINE /* needs an extra library: -lreadline */
  56. #endif
  57. /*
  58. @@ LUA_USE_C99 includes all functionality that depends on C 99.
  59. ** CHANGE it (define it) if your system is compatible.
  60. */
  61. #if defined(LUA_USE_C99)
  62. #define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
  63. #endif
  64. /*
  65. @@ LUA_USE_POSIX includes all functionality listed as X/Open System
  66. @@ Interfaces Extension (XSI).
  67. ** CHANGE it (define it) if your system is XSI compatible.
  68. */
  69. #if defined(LUA_USE_POSIX)
  70. #endif
  71. /*
  72. @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
  73. @@ Lua libraries.
  74. @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
  75. @@ C libraries.
  76. ** CHANGE them if your machine has a non-conventional directory
  77. ** hierarchy or if you want to install your libraries in
  78. ** non-conventional directories.
  79. */
  80. #define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
  81. #if defined(_WIN32) /* { */
  82. /*
  83. ** In Windows, any exclamation mark ('!') in the path is replaced by the
  84. ** path of the directory of the executable file of the current process.
  85. */
  86. #define LUA_LDIR "!\\lua\\"
  87. #define LUA_CDIR "!\\"
  88. #define LUA_SHRDIR "!\\..\\share\\lua\\" LUA_VDIR "\\"
  89. #define LUA_PATH_DEFAULT \
  90. LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
  91. LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" \
  92. LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \
  93. ".\\?.lua;" ".\\?\\init.lua"
  94. #define LUA_CPATH_DEFAULT \
  95. LUA_CDIR"?.dll;" \
  96. LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \
  97. LUA_CDIR"loadall.dll;" ".\\?.dll"
  98. #else /* }{ */
  99. #define LUA_ROOT "/usr/local/"
  100. #define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR "/"
  101. #define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR "/"
  102. #define LUA_PATH_DEFAULT \
  103. LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
  104. LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" \
  105. "./?.lua;" "./?/init.lua"
  106. #define LUA_CPATH_DEFAULT \
  107. LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so"
  108. #endif /* } */
  109. /*
  110. @@ LUA_DIRSEP is the directory separator (for submodules).
  111. ** CHANGE it if your machine does not use "/" as the directory separator
  112. ** and is not Windows. (On Windows Lua automatically uses "\".)
  113. */
  114. #if defined(_WIN32)
  115. #define LUA_DIRSEP "\\"
  116. #else
  117. #define LUA_DIRSEP "/"
  118. #endif
  119. /*
  120. @@ LUA_ENV is the name of the variable that holds the current
  121. @@ environment, used to access global names.
  122. ** CHANGE it if you do not like this name.
  123. */
  124. #define LUA_ENV "_ENV"
  125. /*
  126. @@ LUA_API is a mark for all core API functions.
  127. @@ LUALIB_API is a mark for all auxiliary library functions.
  128. @@ LUAMOD_API is a mark for all standard library opening functions.
  129. ** CHANGE them if you need to define those functions in some special way.
  130. ** For instance, if you want to create one Windows DLL with the core and
  131. ** the libraries, you may want to use the following definition (define
  132. ** LUA_BUILD_AS_DLL to get it).
  133. */
  134. #if defined(LUA_BUILD_AS_DLL) /* { */
  135. #if defined(LUA_CORE) || defined(LUA_LIB) /* { */
  136. #define LUA_API __declspec(dllexport)
  137. #else /* }{ */
  138. #define LUA_API __declspec(dllimport)
  139. #endif /* } */
  140. #else /* }{ */
  141. #define LUA_API extern
  142. #endif /* } */
  143. /* more often than not the libs go together with the core */
  144. #define LUALIB_API LUA_API
  145. #define LUAMOD_API LUALIB_API
  146. /*
  147. @@ LUAI_FUNC is a mark for all extern functions that are not to be
  148. @@ exported to outside modules.
  149. @@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
  150. @@ that are not to be exported to outside modules (LUAI_DDEF for
  151. @@ definitions and LUAI_DDEC for declarations).
  152. ** CHANGE them if you need to mark them in some special way. Elf/gcc
  153. ** (versions 3.2 and later) mark them as "hidden" to optimize access
  154. ** when Lua is compiled as a shared library. Not all elf targets support
  155. ** this attribute. Unfortunately, gcc does not offer a way to check
  156. ** whether the target offers that support, and those without support
  157. ** give a warning about it. To avoid these warnings, change to the
  158. ** default definition.
  159. */
  160. #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
  161. defined(__ELF__) /* { */
  162. #define LUAI_FUNC __attribute__((visibility("hidden"))) extern
  163. #define LUAI_DDEC LUAI_FUNC
  164. #define LUAI_DDEF /* empty */
  165. #else /* }{ */
  166. #define LUAI_FUNC extern
  167. #define LUAI_DDEC extern
  168. #define LUAI_DDEF /* empty */
  169. #endif /* } */
  170. /*
  171. @@ LUA_EXTRASPACE defines the size of a raw memory area associated with
  172. ** a Lua state with very fast access.
  173. ** CHANGE it if you need a different size.
  174. */
  175. #define LUA_EXTRASPACE (sizeof(void *))
  176. /*
  177. @@ LUA_QL describes how error messages quote program elements.
  178. ** CHANGE it if you want a different appearance.
  179. */
  180. #define LUA_QL(x) "'" x "'"
  181. #define LUA_QS LUA_QL("%s")
  182. /*
  183. @@ LUA_IDSIZE gives the maximum size for the description of the source
  184. @@ of a function in debug information.
  185. ** CHANGE it if you want a different size.
  186. */
  187. #define LUA_IDSIZE 60
  188. /*
  189. @@ luai_writestring/luai_writeline define how 'print' prints its results.
  190. ** They are only used in libraries and the stand-alone program. (The #if
  191. ** avoids including 'stdio.h' everywhere.)
  192. */
  193. #if defined(LUA_LIB) || defined(lua_c)
  194. #include <stdio.h>
  195. #define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout)
  196. #define luai_writeline() (luai_writestring("\n", 1), fflush(stdout))
  197. #endif
  198. /*
  199. @@ luai_writestringerror defines how to print error messages.
  200. ** (A format string with one argument is enough for Lua...)
  201. */
  202. #define luai_writestringerror(s,p) \
  203. (fprintf(stderr, (s), (p)), fflush(stderr))
  204. /*
  205. @@ LUAI_MAXSHORTLEN is the maximum length for short strings, that is,
  206. ** strings that are internalized. (Cannot be smaller than reserved words
  207. ** or tags for metamethods, as these strings must be internalized;
  208. ** #("function") = 8, #("__newindex") = 10.)
  209. */
  210. #define LUAI_MAXSHORTLEN 40
  211. /*
  212. @@ LUA_CTXT is the type of the context ('ctx') for continuation functions.
  213. @@ It must be a numerical type; Lua will use 'intptr_t' if available.
  214. */
  215. #if defined (LUA_USE_C99)
  216. #include <stdint.h>
  217. #if defined (INTPTR_MAX) /* even in C99 this type is optional */
  218. #define LUA_CTXT intptr_t
  219. #endif
  220. #endif
  221. #if !defined(LUA_CTXT)
  222. /* default definition (the nearest thing to 'intptr_t' in C89) */
  223. #define LUA_CTXT ptrdiff_t
  224. #endif
  225. /*
  226. ** {==================================================================
  227. ** Compatibility with previous versions
  228. ** ===================================================================
  229. */
  230. /*
  231. @@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2.
  232. @@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1.
  233. ** You can define it to get all options, or change specific options
  234. ** to fit your specific needs.
  235. */
  236. #if defined(LUA_COMPAT_5_2) /* { */
  237. /*
  238. @@ LUA_COMPAT_MATHLIB controls the presence of several deprecated
  239. ** functions in the mathematical library.
  240. */
  241. #define LUA_COMPAT_MATHLIB
  242. /*
  243. @@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'.
  244. */
  245. #define LUA_COMPAT_BITLIB
  246. /*
  247. @@ LUA_COMPAT_IPAIRS controls the effectivness of the __ipairs metamethod.
  248. */
  249. #define LUA_COMPAT_IPAIRS
  250. /*
  251. @@ LUA_COMPAT_APIUNSIGNED controls the presence of macros for
  252. ** manipulating unsigned integers (lua_pushunsigned, lua_tounsigned, etc.)
  253. */
  254. #define LUA_COMPAT_APIUNSIGNED
  255. /*
  256. @@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a
  257. @@ a float mark ('.0').
  258. ** This macro is not on by default even in compatibility mode,
  259. ** because this is not really an incompatibility.
  260. */
  261. /* #define LUA_COMPAT_FLOATSTRING */
  262. #endif /* } */
  263. #if defined(LUA_COMPAT_5_1) /* { */
  264. /*
  265. @@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
  266. ** You can replace it with 'table.unpack'.
  267. */
  268. #define LUA_COMPAT_UNPACK
  269. /*
  270. @@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
  271. ** You can replace it with 'package.searchers'.
  272. */
  273. #define LUA_COMPAT_LOADERS
  274. /*
  275. @@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
  276. ** You can call your C function directly (with light C functions).
  277. */
  278. #define lua_cpcall(L,f,u) \
  279. (lua_pushcfunction(L, (f)), \
  280. lua_pushlightuserdata(L,(u)), \
  281. lua_pcall(L,1,0,0))
  282. /*
  283. @@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
  284. ** You can rewrite 'log10(x)' as 'log(x, 10)'.
  285. */
  286. #define LUA_COMPAT_LOG10
  287. /*
  288. @@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
  289. ** library. You can rewrite 'loadstring(s)' as 'load(s)'.
  290. */
  291. #define LUA_COMPAT_LOADSTRING
  292. /*
  293. @@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
  294. */
  295. #define LUA_COMPAT_MAXN
  296. /*
  297. @@ The following macros supply trivial compatibility for some
  298. ** changes in the API. The macros themselves document how to
  299. ** change your code to avoid using them.
  300. */
  301. #define lua_strlen(L,i) lua_rawlen(L, (i))
  302. #define lua_objlen(L,i) lua_rawlen(L, (i))
  303. #define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ)
  304. #define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT)
  305. /*
  306. @@ LUA_COMPAT_MODULE controls compatibility with previous
  307. ** module functions 'module' (Lua) and 'luaL_register' (C).
  308. */
  309. #define LUA_COMPAT_MODULE
  310. #endif /* } */
  311. /* }================================================================== */
  312. /*
  313. @@ LUAI_BITSINT defines the number of bits in an int.
  314. ** CHANGE here if Lua cannot automatically detect the number of bits of
  315. ** your machine. Probably you do not need to change this.
  316. */
  317. /* avoid overflows in comparison */
  318. #if INT_MAX-20 < 32760 /* { */
  319. #define LUAI_BITSINT 16
  320. #elif INT_MAX > 2147483640L /* }{ */
  321. /* int has at least 32 bits */
  322. #define LUAI_BITSINT 32
  323. #else /* }{ */
  324. #error "you must define LUA_BITSINT with number of bits in an integer"
  325. #endif /* } */
  326. /*
  327. @@ LUA_INT32 is an signed integer with exactly 32 bits.
  328. @@ LUAI_UMEM is an unsigned integer big enough to count the total
  329. @@ memory used by Lua.
  330. @@ LUAI_MEM is a signed integer big enough to count the total memory
  331. @@ used by Lua.
  332. ** CHANGE here if for some weird reason the default definitions are not
  333. ** good enough for your machine. Probably you do not need to change
  334. ** this.
  335. */
  336. #if LUAI_BITSINT >= 32 /* { */
  337. #define LUA_INT32 int
  338. #define LUAI_UMEM size_t
  339. #define LUAI_MEM ptrdiff_t
  340. #else /* }{ */
  341. /* 16-bit ints */
  342. #define LUA_INT32 long
  343. #define LUAI_UMEM unsigned long
  344. #define LUAI_MEM long
  345. #endif /* } */
  346. /*
  347. @@ LUAI_MAXSTACK limits the size of the Lua stack.
  348. ** CHANGE it if you need a different limit. This limit is arbitrary;
  349. ** its only purpose is to stop Lua from consuming unlimited stack
  350. ** space (and to reserve some numbers for pseudo-indices).
  351. */
  352. #if LUAI_BITSINT >= 32
  353. #define LUAI_MAXSTACK 1000000
  354. #else
  355. #define LUAI_MAXSTACK 15000
  356. #endif
  357. /* reserve some space for error handling */
  358. #define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000)
  359. /*
  360. @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
  361. ** CHANGE it if it uses too much C-stack space.
  362. */
  363. #define LUAL_BUFFERSIZE BUFSIZ
  364. /*
  365. ** {==================================================================
  366. ** Configuration for Numbers.
  367. ** Change these definitions if no predefined LUA_REAL_* / LUA_INT_*
  368. ** satisfy your needs.
  369. ** ===================================================================
  370. */
  371. /*
  372. @@ LUA_NUMBER is the floating-point type used by Lua.
  373. **
  374. @@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
  375. @@ over a floating number.
  376. **
  377. @@ LUA_NUMBER_FRMLEN is the length modifier for writing floats.
  378. @@ LUA_NUMBER_FMT is the format for writing floats.
  379. @@ lua_number2str converts a float to a string.
  380. **
  381. @@ l_mathop allows the addition of an 'l' or 'f' to all math operations
  382. **
  383. @@ lua_str2number converts a decimal numeric string to a number.
  384. */
  385. #if defined(LUA_REAL_FLOAT) /* { single float */
  386. #define LUA_NUMBER float
  387. #define LUAI_UACNUMBER double
  388. #define LUA_NUMBER_FRMLEN ""
  389. #define LUA_NUMBER_FMT "%.7g"
  390. #define l_mathop(op) op##f
  391. #define lua_str2number(s,p) strtof((s), (p))
  392. #elif defined(LUA_REAL_LONGDOUBLE) /* }{ long double */
  393. #define LUA_NUMBER long double
  394. #define LUAI_UACNUMBER long double
  395. #define LUA_NUMBER_FRMLEN "L"
  396. #define LUA_NUMBER_FMT "%.19Lg"
  397. #define l_mathop(op) op##l
  398. #define lua_str2number(s,p) strtold((s), (p))
  399. #elif defined(LUA_REAL_DOUBLE) /* }{ double */
  400. #define LUA_NUMBER double
  401. #define LUAI_UACNUMBER double
  402. #define LUA_NUMBER_FRMLEN ""
  403. #define LUA_NUMBER_FMT "%.14g"
  404. #define l_mathop(op) op
  405. #define lua_str2number(s,p) strtod((s), (p))
  406. #else /* }{ */
  407. #error "numeric real type not defined"
  408. #endif /* } */
  409. #if defined(LUA_ANSI)
  410. /* C89 does not support 'opf' variants for math functions */
  411. #undef l_mathop
  412. #define l_mathop(op) (lua_Number)op
  413. #endif
  414. #if defined(LUA_ANSI) || defined(_WIN32)
  415. /* C89 and Windows do not support 'strtof'... */
  416. #undef lua_str2number
  417. #define lua_str2number(s,p) ((lua_Number)strtod((s), (p)))
  418. #endif
  419. #define l_floor(x) (l_mathop(floor)(x))
  420. #define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
  421. /*
  422. @@ lua_numtointeger converts a float number to an integer, or
  423. ** returns 0 if float is not within the range of a lua_Integer.
  424. ** (The range comparisons are tricky because of rounding. The tests
  425. ** here assume a two-complement representation, where MININTEGER always
  426. ** has an exact representation as a float; MAXINTEGER may not have one,
  427. ** and therefore its conversion to float may have an ill-defined value.)
  428. */
  429. #define lua_numtointeger(n,p) \
  430. ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \
  431. (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \
  432. (*(p) = (LUA_INTEGER)(n), 1))
  433. /*
  434. @@ The luai_num* macros define the primitive operations over numbers.
  435. ** They should work for any size of floating numbers.
  436. */
  437. /* the following operations need the math library */
  438. #if defined(lobject_c) || defined(lvm_c)
  439. #include <math.h>
  440. #define luai_nummod(L,a,b,m) \
  441. { (m) = l_mathop(fmod)(a,b); if ((m) != 0 && (a)*(b) < 0) (m) += (b); }
  442. #define luai_numpow(L,a,b) ((void)L, l_mathop(pow)(a,b))
  443. #endif
  444. /* these are quite standard operations */
  445. #if defined(LUA_CORE)
  446. #define luai_numadd(L,a,b) ((a)+(b))
  447. #define luai_numsub(L,a,b) ((a)-(b))
  448. #define luai_nummul(L,a,b) ((a)*(b))
  449. #define luai_numdiv(L,a,b) ((a)/(b))
  450. #define luai_numunm(L,a) (-(a))
  451. #define luai_numeq(a,b) ((a)==(b))
  452. #define luai_numlt(a,b) ((a)<(b))
  453. #define luai_numle(a,b) ((a)<=(b))
  454. #define luai_numisnan(a) (!luai_numeq((a), (a)))
  455. #endif
  456. /*
  457. ** The following macro checks whether an operation is not safe to be
  458. ** performed by the constant folder. It should result in zero only if
  459. ** the operation is safe.
  460. */
  461. #define luai_numinvalidop(op,a,b) 0
  462. /*
  463. @@ LUA_INTEGER is the integer type used by Lua.
  464. **
  465. @@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER.
  466. **
  467. @@ LUAI_UACINT is the result of an 'usual argument conversion'
  468. @@ over a lUA_INTEGER.
  469. @@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers.
  470. @@ LUA_INTEGER_FMT is the format for writing integers.
  471. @@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER.
  472. @@ LUA_MININTEGER is the minimum value for a LUA_INTEGER.
  473. @@ lua_integer2str converts an integer to a string.
  474. */
  475. /* The following definitions are good for most cases here */
  476. #define LUA_INTEGER_FMT "%" LUA_INTEGER_FRMLEN "d"
  477. #define lua_integer2str(s,n) sprintf((s), LUA_INTEGER_FMT, (n))
  478. #define LUAI_UACINT LUA_INTEGER
  479. /*
  480. ** use LUAI_UACINT here to avoid problems with promotions (which
  481. ** can turn a comparison between unsigneds into a signed comparison)
  482. */
  483. #define LUA_UNSIGNED unsigned LUAI_UACINT
  484. /* now the variable definitions */
  485. #if defined(LUA_INT_INT) /* { int */
  486. #define LUA_INTEGER int
  487. #define LUA_INTEGER_FRMLEN ""
  488. #define LUA_MAXINTEGER INT_MAX
  489. #define LUA_MININTEGER INT_MIN
  490. #elif defined(LUA_INT_LONG) /* }{ long */
  491. #define LUA_INTEGER long
  492. #define LUA_INTEGER_FRMLEN "l"
  493. #define LUA_MAXINTEGER LONG_MAX
  494. #define LUA_MININTEGER LONG_MIN
  495. #elif defined(LUA_INT_LONGLONG) /* }{ long long */
  496. #if defined(_WIN32)
  497. #define LUA_INTEGER __int64
  498. #define LUA_INTEGER_FRMLEN "I64"
  499. #define LUA_MAXINTEGER _I64_MAX
  500. #define LUA_MININTEGER _I64_MIN
  501. #else
  502. #define LUA_INTEGER long long
  503. #define LUA_INTEGER_FRMLEN "ll"
  504. #define LUA_MAXINTEGER LLONG_MAX
  505. #define LUA_MININTEGER LLONG_MIN
  506. #endif
  507. #elif defined(LUA_INT_SHORT) /* }{ short int */
  508. /*
  509. ** this option is for tests only; it is not particularly useful and
  510. ** it does not pass the test suit.
  511. */
  512. #define LUA_INTEGER short int
  513. #define LUA_INTEGER_FRMLEN ""
  514. #define LUA_MAXINTEGER SHRT_MAX
  515. #define LUA_MININTEGER SHRT_MIN
  516. #undef LUAI_UACINT
  517. #define LUAI_UACINT int
  518. #undef LUAI_MAXSTACK
  519. #define LUAI_MAXSTACK 15000
  520. #define l_castS2U(x) ((LUA_UNSIGNED)(unsigned short)(x))
  521. #else /* }{ */
  522. #error "numeric integer type not defined"
  523. #endif /* } */
  524. /* }================================================================== */
  525. /* =================================================================== */
  526. /*
  527. ** Local configuration. You can use this space to add your redefinitions
  528. ** without modifying the main part of the file.
  529. */
  530. #endif