1/* 2** $Id: luaconf.h $ 3** Configuration file for Lua 4** See Copyright Notice in lua.h 5*/ 6 7 8#ifndef luaconf_h 9#define luaconf_h 10 11#include <limits.h> 12#include <stddef.h> 13 14 15/* 16** =================================================================== 17** General Configuration File for Lua 18** 19** Some definitions here can be changed externally, through the 20** compiler (e.g., with '-D' options). Those are protected by 21** '#if !defined' guards. However, several other definitions should 22** be changed directly here, either because they affect the Lua 23** ABI (by making the changes here, you ensure that all software 24** connected to Lua, such as C libraries, will be compiled with the 25** same configuration); or because they are seldom changed. 26** 27** Search for "@@" to find all configurable definitions. 28** =================================================================== 29*/ 30 31 32/* 33** {==================================================================== 34** System Configuration: macros to adapt (if needed) Lua to some 35** particular platform, for instance restricting it to C89. 36** ===================================================================== 37*/ 38 39/* 40@@ LUA_USE_C89 controls the use of non-ISO-C89 features. 41** Define it if you want Lua to avoid the use of a few C99 features 42** or Windows-specific features on Windows. 43*/ 44/* #define LUA_USE_C89 */ 45 46 47/* 48** By default, Lua on Windows use (some) specific Windows features 49*/ 50#if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE) 51#define LUA_USE_WINDOWS /* enable goodies for regular Windows */ 52#endif 53 54 55#if defined(LUA_USE_WINDOWS) 56#define LUA_DL_DLL /* enable support for DLL */ 57#define LUA_USE_C89 /* broadly, Windows is C89 */ 58#endif 59 60 61#if defined(LUA_USE_LINUX) 62#define LUA_USE_POSIX 63#define LUA_USE_DLOPEN /* needs an extra library: -ldl */ 64#endif 65 66 67#if defined(LUA_USE_MACOSX) 68#define LUA_USE_POSIX 69#define LUA_USE_DLOPEN /* MacOS does not need -ldl */ 70#endif 71 72/* Local modifications: need io.popen */ 73#ifdef __FreeBSD__ 74#define LUA_USE_POSIX 75#ifndef BOOTSTRAPPING 76#define LUA_USE_DLOPEN 77#endif 78#endif 79 80/* 81@@ LUAI_IS32INT is true iff 'int' has (at least) 32 bits. 82*/ 83#define LUAI_IS32INT ((UINT_MAX >> 30) >= 3) 84 85/* }================================================================== */ 86 87 88 89/* 90** {================================================================== 91** Configuration for Number types. 92** =================================================================== 93*/ 94 95/* 96@@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. 97*/ 98/* #define LUA_32BITS */ 99 100 101/* 102@@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for 103** C89 ('long' and 'double'); Windows always has '__int64', so it does 104** not need to use this case. 105*/ 106#if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS) 107#define LUA_C89_NUMBERS 108#endif 109 110 111/* 112@@ LUA_INT_TYPE defines the type for Lua integers. 113@@ LUA_FLOAT_TYPE defines the type for Lua floats. 114** Lua should work fine with any mix of these options supported 115** by your C compiler. The usual configurations are 64-bit integers 116** and 'double' (the default), 32-bit integers and 'float' (for 117** restricted platforms), and 'long'/'double' (for C compilers not 118** compliant with C99, which may not have support for 'long long'). 119*/ 120 121/* predefined options for LUA_INT_TYPE */ 122#define LUA_INT_INT 1 123#define LUA_INT_LONG 2 124#define LUA_INT_LONGLONG 3 125 126/* predefined options for LUA_FLOAT_TYPE */ 127#define LUA_FLOAT_FLOAT 1 128#define LUA_FLOAT_DOUBLE 2 129#define LUA_FLOAT_LONGDOUBLE 3 130#define LUA_FLOAT_INT64 4 131 132#if defined(LUA_32BITS) /* { */ 133/* 134** 32-bit integers and 'float' 135*/ 136#if LUAI_IS32INT /* use 'int' if big enough */ 137#define LUA_INT_TYPE LUA_INT_INT 138#else /* otherwise use 'long' */ 139#define LUA_INT_TYPE LUA_INT_LONG 140#endif 141#define LUA_FLOAT_TYPE LUA_FLOAT_FLOAT 142 143#elif defined(LUA_C89_NUMBERS) /* }{ */ 144/* 145** largest types available for C89 ('long' and 'double') 146*/ 147#define LUA_INT_TYPE LUA_INT_LONG 148#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE 149 150#endif /* } */ 151 152 153/* 154** default configuration for 64-bit Lua ('long long' and 'double') 155*/ 156#if !defined(LUA_INT_TYPE) 157#define LUA_INT_TYPE LUA_INT_LONGLONG 158#endif 159 160#if !defined(LUA_FLOAT_TYPE) 161#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE 162#endif 163 164/* }================================================================== */ 165 166 167 168/* 169** {================================================================== 170** Configuration for Paths. 171** =================================================================== 172*/ 173 174/* 175** LUA_PATH_SEP is the character that separates templates in a path. 176** LUA_PATH_MARK is the string that marks the substitution points in a 177** template. 178** LUA_EXEC_DIR in a Windows path is replaced by the executable's 179** directory. 180*/ 181#define LUA_PATH_SEP ";" 182#define LUA_PATH_MARK "?" 183#define LUA_EXEC_DIR "!" 184 185 186/* 187@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for 188** Lua libraries. 189@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for 190** C libraries. 191** CHANGE them if your machine has a non-conventional directory 192** hierarchy or if you want to install your libraries in 193** non-conventional directories. 194*/ 195 196#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR 197#if defined(_WIN32) /* { */ 198/* 199** In Windows, any exclamation mark ('!') in the path is replaced by the 200** path of the directory of the executable file of the current process. 201*/ 202#define LUA_LDIR "!\\lua\\" 203#define LUA_CDIR "!\\" 204#define LUA_SHRDIR "!\\..\\share\\lua\\" LUA_VDIR "\\" 205 206#if !defined(LUA_PATH_DEFAULT) 207#define LUA_PATH_DEFAULT \ 208 LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ 209 LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" \ 210 LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \ 211 ".\\?.lua;" ".\\?\\init.lua" 212#endif 213 214#if !defined(LUA_CPATH_DEFAULT) 215#define LUA_CPATH_DEFAULT \ 216 LUA_CDIR"?.dll;" \ 217 LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \ 218 LUA_CDIR"loadall.dll;" ".\\?.dll" 219#endif 220 221#else /* }{ */ 222 223#define LUA_ROOT "/usr/" 224#define LUA_LDIR LUA_ROOT "share/flua/" 225#define LUA_CDIR LUA_ROOT "lib/flua/" 226 227#if !defined(LUA_PATH_DEFAULT) 228#define LUA_PATH_DEFAULT \ 229 LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 230 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" \ 231 "./?.lua;" "./?/init.lua" 232#endif 233 234#if !defined(LUA_CPATH_DEFAULT) 235#define LUA_CPATH_DEFAULT \ 236 LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" 237#endif 238 239#endif /* } */ 240 241 242/* 243@@ LUA_DIRSEP is the directory separator (for submodules). 244** CHANGE it if your machine does not use "/" as the directory separator 245** and is not Windows. (On Windows Lua automatically uses "\".) 246*/ 247#if !defined(LUA_DIRSEP) 248 249#if defined(_WIN32) 250#define LUA_DIRSEP "\\" 251#else 252#define LUA_DIRSEP "/" 253#endif 254 255#endif 256 257/* }================================================================== */ 258 259 260/* 261** {================================================================== 262** Marks for exported symbols in the C code 263** =================================================================== 264*/ 265 266/* 267@@ LUA_API is a mark for all core API functions. 268@@ LUALIB_API is a mark for all auxiliary library functions. 269@@ LUAMOD_API is a mark for all standard library opening functions. 270** CHANGE them if you need to define those functions in some special way. 271** For instance, if you want to create one Windows DLL with the core and 272** the libraries, you may want to use the following definition (define 273** LUA_BUILD_AS_DLL to get it). 274*/ 275#if defined(LUA_BUILD_AS_DLL) /* { */ 276 277#if defined(LUA_CORE) || defined(LUA_LIB) /* { */ 278#define LUA_API __declspec(dllexport) 279#else /* }{ */ 280#define LUA_API __declspec(dllimport) 281#endif /* } */ 282 283#else /* }{ */ 284 285#define LUA_API extern 286 287#endif /* } */ 288 289 290/* 291** More often than not the libs go together with the core. 292*/ 293#define LUALIB_API LUA_API 294#define LUAMOD_API LUA_API 295 296 297/* 298@@ LUAI_FUNC is a mark for all extern functions that are not to be 299** exported to outside modules. 300@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables, 301** none of which to be exported to outside modules (LUAI_DDEF for 302** definitions and LUAI_DDEC for declarations). 303** CHANGE them if you need to mark them in some special way. Elf/gcc 304** (versions 3.2 and later) mark them as "hidden" to optimize access 305** when Lua is compiled as a shared library. Not all elf targets support 306** this attribute. Unfortunately, gcc does not offer a way to check 307** whether the target offers that support, and those without support 308** give a warning about it. To avoid these warnings, change to the 309** default definition. 310*/ 311#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ 312 defined(__ELF__) /* { */ 313#define LUAI_FUNC __attribute__((visibility("internal"))) extern 314#else /* }{ */ 315#define LUAI_FUNC extern 316#endif /* } */ 317 318#define LUAI_DDEC(dec) LUAI_FUNC dec 319#define LUAI_DDEF /* empty */ 320 321/* }================================================================== */ 322 323 324/* 325** {================================================================== 326** Compatibility with previous versions 327** =================================================================== 328*/ 329 330/* 331@@ LUA_COMPAT_5_3 controls other macros for compatibility with Lua 5.3. 332** You can define it to get all options, or change specific options 333** to fit your specific needs. 334*/ 335#if defined(LUA_COMPAT_5_3) /* { */ 336 337/* 338@@ LUA_COMPAT_MATHLIB controls the presence of several deprecated 339** functions in the mathematical library. 340** (These functions were already officially removed in 5.3; 341** nevertheless they are still available here.) 342*/ 343#define LUA_COMPAT_MATHLIB 344 345/* 346@@ LUA_COMPAT_APIINTCASTS controls the presence of macros for 347** manipulating other integer types (lua_pushunsigned, lua_tounsigned, 348** luaL_checkint, luaL_checklong, etc.) 349** (These macros were also officially removed in 5.3, but they are still 350** available here.) 351*/ 352#define LUA_COMPAT_APIINTCASTS 353 354 355/* 356@@ LUA_COMPAT_LT_LE controls the emulation of the '__le' metamethod 357** using '__lt'. 358*/ 359#define LUA_COMPAT_LT_LE 360 361 362/* 363@@ The following macros supply trivial compatibility for some 364** changes in the API. The macros themselves document how to 365** change your code to avoid using them. 366** (Once more, these macros were officially removed in 5.3, but they are 367** still available here.) 368*/ 369#define lua_strlen(L,i) lua_rawlen(L, (i)) 370 371#define lua_objlen(L,i) lua_rawlen(L, (i)) 372 373#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) 374#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) 375 376#endif /* } */ 377 378/* }================================================================== */ 379 380 381 382/* 383** {================================================================== 384** Configuration for Numbers. 385** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_* 386** satisfy your needs. 387** =================================================================== 388*/ 389 390/* 391@@ LUA_NUMBER is the floating-point type used by Lua. 392@@ LUAI_UACNUMBER is the result of a 'default argument promotion' 393@@ over a floating number. 394@@ l_floatatt(x) corrects float attribute 'x' to the proper float type 395** by prefixing it with one of FLT/DBL/LDBL. 396@@ LUA_NUMBER_FRMLEN is the length modifier for writing floats. 397@@ LUA_NUMBER_FMT is the format for writing floats. 398@@ lua_number2str converts a float to a string. 399@@ l_mathop allows the addition of an 'l' or 'f' to all math operations. 400@@ l_floor takes the floor of a float. 401@@ lua_str2number converts a decimal numeral to a number. 402*/ 403 404 405/* The following definitions are good for most cases here */ 406 407#define l_floor(x) (l_mathop(floor)(x)) 408 409#define lua_number2str(s,sz,n) \ 410 l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n)) 411 412/* 413@@ lua_numbertointeger converts a float number with an integral value 414** to an integer, or returns 0 if float is not within the range of 415** a lua_Integer. (The range comparisons are tricky because of 416** rounding. The tests here assume a two-complement representation, 417** where MININTEGER always has an exact representation as a float; 418** MAXINTEGER may not have one, and therefore its conversion to float 419** may have an ill-defined value.) 420*/ 421#define lua_numbertointeger(n,p) \ 422 ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \ 423 (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \ 424 (*(p) = (LUA_INTEGER)(n), 1)) 425 426 427/* now the variable definitions */ 428 429#if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT /* { single float */ 430 431#define LUA_NUMBER float 432 433#define l_floatatt(n) (FLT_##n) 434 435#define LUAI_UACNUMBER double 436 437#define LUA_NUMBER_FRMLEN "" 438#define LUA_NUMBER_FMT "%.7g" 439 440#define l_mathop(op) op##f 441 442#define lua_str2number(s,p) strtof((s), (p)) 443 444 445#elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE /* }{ long double */ 446 447#define LUA_NUMBER long double 448 449#define l_floatatt(n) (LDBL_##n) 450 451#define LUAI_UACNUMBER long double 452 453#define LUA_NUMBER_FRMLEN "L" 454#define LUA_NUMBER_FMT "%.19Lg" 455 456#define l_mathop(op) op##l 457 458#define lua_str2number(s,p) strtold((s), (p)) 459 460#elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE /* }{ double */ 461 462#define LUA_NUMBER double 463 464#define l_floatatt(n) (DBL_##n) 465 466#define LUAI_UACNUMBER double 467 468#define LUA_NUMBER_FRMLEN "" 469#define LUA_NUMBER_FMT "%.14g" 470 471#define l_mathop(op) op 472 473#define lua_str2number(s,p) strtod((s), (p)) 474 475#else /* }{ */ 476 477#error "numeric float type not defined" 478 479#endif /* } */ 480 481 482 483/* 484@@ LUA_INTEGER is the integer type used by Lua. 485** 486@@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER. 487** 488@@ LUAI_UACINT is the result of a 'default argument promotion' 489@@ over a LUA_INTEGER. 490@@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers. 491@@ LUA_INTEGER_FMT is the format for writing integers. 492@@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER. 493@@ LUA_MININTEGER is the minimum value for a LUA_INTEGER. 494@@ LUA_MAXUNSIGNED is the maximum value for a LUA_UNSIGNED. 495@@ LUA_UNSIGNEDBITS is the number of bits in a LUA_UNSIGNED. 496@@ lua_integer2str converts an integer to a string. 497*/ 498 499 500/* The following definitions are good for most cases here */ 501 502#define LUA_INTEGER_FMT "%" LUA_INTEGER_FRMLEN "d" 503 504#define LUAI_UACINT LUA_INTEGER 505 506#define lua_integer2str(s,sz,n) \ 507 l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n)) 508 509/* 510** use LUAI_UACINT here to avoid problems with promotions (which 511** can turn a comparison between unsigneds into a signed comparison) 512*/ 513#define LUA_UNSIGNED unsigned LUAI_UACINT 514 515 516#define LUA_UNSIGNEDBITS (sizeof(LUA_UNSIGNED) * CHAR_BIT) 517 518 519/* now the variable definitions */ 520 521#if LUA_INT_TYPE == LUA_INT_INT /* { int */ 522 523#define LUA_INTEGER int 524#define LUA_INTEGER_FRMLEN "" 525 526#define LUA_MAXINTEGER INT_MAX 527#define LUA_MININTEGER INT_MIN 528 529#define LUA_MAXUNSIGNED UINT_MAX 530 531#elif LUA_INT_TYPE == LUA_INT_LONG /* }{ long */ 532 533#define LUA_INTEGER long 534#define LUA_INTEGER_FRMLEN "l" 535 536#define LUA_MAXINTEGER LONG_MAX 537#define LUA_MININTEGER LONG_MIN 538 539#define LUA_MAXUNSIGNED ULONG_MAX 540 541#elif LUA_INT_TYPE == LUA_INT_LONGLONG /* }{ long long */ 542 543/* use presence of macro LLONG_MAX as proxy for C99 compliance */ 544#if defined(LLONG_MAX) /* { */ 545/* use ISO C99 stuff */ 546 547#define LUA_INTEGER long long 548#define LUA_INTEGER_FRMLEN "ll" 549 550#define LUA_MAXINTEGER LLONG_MAX 551#define LUA_MININTEGER LLONG_MIN 552 553#define LUA_MAXUNSIGNED ULLONG_MAX 554 555#elif defined(LUA_USE_WINDOWS) /* }{ */ 556/* in Windows, can use specific Windows types */ 557 558#define LUA_INTEGER __int64 559#define LUA_INTEGER_FRMLEN "I64" 560 561#define LUA_MAXINTEGER _I64_MAX 562#define LUA_MININTEGER _I64_MIN 563 564#define LUA_MAXUNSIGNED _UI64_MAX 565 566#else /* }{ */ 567 568#error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \ 569 or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)" 570 571#endif /* } */ 572 573#else /* }{ */ 574 575#error "numeric integer type not defined" 576 577#endif /* } */ 578 579/* }================================================================== */ 580 581 582/* 583** {================================================================== 584** Dependencies with C99 and other C details 585** =================================================================== 586*/ 587 588/* 589@@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89. 590** (All uses in Lua have only one format item.) 591*/ 592#if !defined(LUA_USE_C89) 593#define l_sprintf(s,sz,f,i) snprintf(s,sz,f,i) 594#else 595#define l_sprintf(s,sz,f,i) ((void)(sz), sprintf(s,f,i)) 596#endif 597 598 599/* 600@@ lua_strx2number converts a hexadecimal numeral to a number. 601** In C99, 'strtod' does that conversion. Otherwise, you can 602** leave 'lua_strx2number' undefined and Lua will provide its own 603** implementation. 604*/ 605#if !defined(LUA_USE_C89) 606#define lua_strx2number(s,p) lua_str2number(s,p) 607#endif 608 609 610/* 611@@ lua_pointer2str converts a pointer to a readable string in a 612** non-specified way. 613*/ 614#define lua_pointer2str(buff,sz,p) l_sprintf(buff,sz,"%p",p) 615 616 617/* 618@@ lua_number2strx converts a float to a hexadecimal numeral. 619** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that. 620** Otherwise, you can leave 'lua_number2strx' undefined and Lua will 621** provide its own implementation. 622*/ 623#if !defined(LUA_USE_C89) 624#define lua_number2strx(L,b,sz,f,n) \ 625 ((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n))) 626#endif 627 628 629/* 630** 'strtof' and 'opf' variants for math functions are not valid in 631** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the 632** availability of these variants. ('math.h' is already included in 633** all files that use these macros.) 634*/ 635#if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF)) 636#undef l_mathop /* variants not available */ 637#undef lua_str2number 638#define l_mathop(op) (lua_Number)op /* no variant */ 639#define lua_str2number(s,p) ((lua_Number)strtod((s), (p))) 640#endif 641 642 643/* 644@@ LUA_KCONTEXT is the type of the context ('ctx') for continuation 645** functions. It must be a numerical type; Lua will use 'intptr_t' if 646** available, otherwise it will use 'ptrdiff_t' (the nearest thing to 647** 'intptr_t' in C89) 648*/ 649#define LUA_KCONTEXT ptrdiff_t 650 651#if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \ 652 __STDC_VERSION__ >= 199901L 653#include <stdint.h> 654#if defined(INTPTR_MAX) /* even in C99 this type is optional */ 655#undef LUA_KCONTEXT 656#define LUA_KCONTEXT intptr_t 657#endif 658#endif 659 660 661/* 662@@ lua_getlocaledecpoint gets the locale "radix character" (decimal point). 663** Change that if you do not want to use C locales. (Code using this 664** macro must include the header 'locale.h'.) 665*/ 666#if !defined(lua_getlocaledecpoint) 667#define lua_getlocaledecpoint() (localeconv()->decimal_point[0]) 668#endif 669 670/* }================================================================== */ 671 672 673/* 674** {================================================================== 675** Language Variations 676** ===================================================================== 677*/ 678 679/* 680@@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some 681** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from 682** numbers to strings. Define LUA_NOCVTS2N to turn off automatic 683** coercion from strings to numbers. 684*/ 685/* #define LUA_NOCVTN2S */ 686/* #define LUA_NOCVTS2N */ 687 688 689/* 690@@ LUA_USE_APICHECK turns on several consistency checks on the C API. 691** Define it as a help when debugging C code. 692*/ 693#if defined(LUA_USE_APICHECK) 694#include <assert.h> 695#define luai_apicheck(l,e) assert(e) 696#endif 697 698/* }================================================================== */ 699 700 701/* 702** {================================================================== 703** Macros that affect the API and must be stable (that is, must be the 704** same when you compile Lua and when you compile code that links to 705** Lua). 706** ===================================================================== 707*/ 708 709/* 710@@ LUAI_MAXSTACK limits the size of the Lua stack. 711** CHANGE it if you need a different limit. This limit is arbitrary; 712** its only purpose is to stop Lua from consuming unlimited stack 713** space (and to reserve some numbers for pseudo-indices). 714** (It must fit into max(size_t)/32.) 715*/ 716#if LUAI_IS32INT 717#define LUAI_MAXSTACK 1000000 718#else 719#define LUAI_MAXSTACK 15000 720#endif 721 722 723/* 724@@ LUA_EXTRASPACE defines the size of a raw memory area associated with 725** a Lua state with very fast access. 726** CHANGE it if you need a different size. 727*/ 728#define LUA_EXTRASPACE (sizeof(void *)) 729 730 731/* 732@@ LUA_IDSIZE gives the maximum size for the description of the source 733@@ of a function in debug information. 734** CHANGE it if you want a different size. 735*/ 736#define LUA_IDSIZE 60 737 738 739/* 740@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 741*/ 742#define LUAL_BUFFERSIZE ((int)(16 * sizeof(void*) * sizeof(lua_Number))) 743 744 745/* 746@@ LUAI_MAXALIGN defines fields that, when used in a union, ensure 747** maximum alignment for the other items in that union. 748*/ 749#define LUAI_MAXALIGN lua_Number n; double u; void *s; lua_Integer i; long l 750 751/* }================================================================== */ 752 753 754 755 756 757/* =================================================================== */ 758 759/* 760** Local configuration. You can use this space to add your redefinitions 761** without modifying the main part of the file. 762*/ 763 764 765 766 767 768#endif 769 770