1 /* $NetBSD: luaconf.h,v 1.22 2018/05/26 20:17:56 alnsn Exp $ */ 2 3 /* 4 ** Id: luaconf.h,v 1.259 2016/12/22 13:08:50 roberto Exp 5 ** Configuration file for Lua 6 ** See Copyright Notice in lua.h 7 */ 8 9 10 #ifndef luaconf_h 11 #define luaconf_h 12 13 #ifndef _KERNEL 14 #include <limits.h> 15 #include <stddef.h> 16 #else /* _KERNEL */ 17 #include <machine/limits.h> 18 #include <sys/systm.h> 19 #endif /* _KERNEL */ 20 21 22 /* 23 ** =================================================================== 24 ** Search for "@@" to find all configurable definitions. 25 ** =================================================================== 26 */ 27 28 29 /* 30 ** {==================================================================== 31 ** System Configuration: macros to adapt (if needed) Lua to some 32 ** particular platform, for instance compiling it with 32-bit numbers or 33 ** restricting it to C89. 34 ** ===================================================================== 35 */ 36 37 /* 38 @@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. You 39 ** can also define LUA_32BITS in the make file, but changing here you 40 ** ensure that all software connected to Lua will be compiled with the 41 ** same configuration. 42 */ 43 /* #define LUA_32BITS */ 44 45 46 /* 47 @@ LUA_USE_C89 controls the use of non-ISO-C89 features. 48 ** Define it if you want Lua to avoid the use of a few C99 features 49 ** or Windows-specific features on Windows. 50 */ 51 /* #define LUA_USE_C89 */ 52 53 54 /* 55 ** By default, Lua on Windows use (some) specific Windows features 56 */ 57 #if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE) 58 #define LUA_USE_WINDOWS /* enable goodies for regular Windows */ 59 #endif 60 61 62 #if defined(LUA_USE_WINDOWS) 63 #define LUA_DL_DLL /* enable support for DLL */ 64 #define LUA_USE_C89 /* broadly, Windows is C89 */ 65 #endif 66 67 68 #if defined(LUA_USE_LINUX) 69 #define LUA_USE_POSIX 70 #define LUA_USE_DLOPEN /* needs an extra library: -ldl */ 71 #define LUA_USE_READLINE /* needs some extra libraries */ 72 #endif 73 74 75 #if defined(LUA_USE_MACOSX) 76 #define LUA_USE_POSIX 77 #define LUA_USE_DLOPEN /* MacOS does not need -ldl */ 78 #define LUA_USE_READLINE /* needs an extra library: -lreadline */ 79 #endif 80 81 82 /* 83 @@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for 84 ** C89 ('long' and 'double'); Windows always has '__int64', so it does 85 ** not need to use this case. 86 */ 87 #if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS) 88 #define LUA_C89_NUMBERS 89 #endif 90 91 92 93 /* 94 @@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'. 95 */ 96 /* avoid undefined shifts */ 97 #if ((INT_MAX >> 15) >> 15) >= 1 98 #define LUAI_BITSINT 32 99 #else 100 /* 'int' always must have at least 16 bits */ 101 #define LUAI_BITSINT 16 102 #endif 103 104 105 /* 106 @@ LUA_INT_TYPE defines the type for Lua integers. 107 @@ LUA_FLOAT_TYPE defines the type for Lua floats. 108 ** Lua should work fine with any mix of these options (if supported 109 ** by your C compiler). The usual configurations are 64-bit integers 110 ** and 'double' (the default), 32-bit integers and 'float' (for 111 ** restricted platforms), and 'long'/'double' (for C compilers not 112 ** compliant with C99, which may not have support for 'long long'). 113 */ 114 115 /* predefined options for LUA_INT_TYPE */ 116 #define LUA_INT_INT 1 117 #define LUA_INT_LONG 2 118 #define LUA_INT_LONGLONG 3 119 120 /* predefined options for LUA_FLOAT_TYPE */ 121 #define LUA_FLOAT_FLOAT 1 122 #define LUA_FLOAT_DOUBLE 2 123 #define LUA_FLOAT_LONGDOUBLE 3 124 125 #if defined(LUA_32BITS) /* { */ 126 /* 127 ** 32-bit integers and 'float' 128 */ 129 #if LUAI_BITSINT >= 32 /* use 'int' if big enough */ 130 #define LUA_INT_TYPE LUA_INT_INT 131 #else /* otherwise use 'long' */ 132 #define LUA_INT_TYPE LUA_INT_LONG 133 #endif 134 #define LUA_FLOAT_TYPE LUA_FLOAT_FLOAT 135 136 #elif defined(LUA_C89_NUMBERS) /* }{ */ 137 /* 138 ** largest types available for C89 ('long' and 'double') 139 */ 140 #define LUA_INT_TYPE LUA_INT_LONG 141 #define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE 142 143 #endif /* } */ 144 145 146 /* 147 ** default configuration for 64-bit Lua ('long long' and 'double') 148 */ 149 #if !defined(LUA_INT_TYPE) 150 #define LUA_INT_TYPE LUA_INT_LONGLONG 151 #endif 152 153 #if !defined(LUA_FLOAT_TYPE) 154 #define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE 155 #endif 156 157 /* }================================================================== */ 158 159 160 161 162 /* 163 ** {================================================================== 164 ** Configuration for Paths. 165 ** =================================================================== 166 */ 167 168 /* 169 ** LUA_PATH_SEP is the character that separates templates in a path. 170 ** LUA_PATH_MARK is the string that marks the substitution points in a 171 ** template. 172 ** LUA_EXEC_DIR in a Windows path is replaced by the executable's 173 ** directory. 174 */ 175 #define LUA_PATH_SEP ";" 176 #define LUA_PATH_MARK "?" 177 #define LUA_EXEC_DIR "!" 178 179 180 /* 181 @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for 182 ** Lua libraries. 183 @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for 184 ** C libraries. 185 ** CHANGE them if your machine has a non-conventional directory 186 ** hierarchy or if you want to install your libraries in 187 ** non-conventional directories. 188 */ 189 #define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR 190 #if defined(_WIN32) /* { */ 191 /* 192 ** In Windows, any exclamation mark ('!') in the path is replaced by the 193 ** path of the directory of the executable file of the current process. 194 */ 195 #define LUA_LDIR "!\\lua\\" 196 #define LUA_CDIR "!\\" 197 #define LUA_SHRDIR "!\\..\\share\\lua\\" LUA_VDIR "\\" 198 #define LUA_PATH_DEFAULT \ 199 LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ 200 LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" \ 201 LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \ 202 ".\\?.lua;" ".\\?\\init.lua" 203 #define LUA_CPATH_DEFAULT \ 204 LUA_CDIR"?.dll;" \ 205 LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \ 206 LUA_CDIR"loadall.dll;" ".\\?.dll" 207 208 #else /* }{ */ 209 210 #define LUA_ROOT "/usr/local/" 211 #define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR "/" 212 #define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR "/" 213 #define LUA_PATH_DEFAULT \ 214 LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 215 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" \ 216 "./?.lua;" "./?/init.lua" 217 #define LUA_CPATH_DEFAULT \ 218 LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" 219 #endif /* } */ 220 221 222 /* 223 @@ LUA_DIRSEP is the directory separator (for submodules). 224 ** CHANGE it if your machine does not use "/" as the directory separator 225 ** and is not Windows. (On Windows Lua automatically uses "\".) 226 */ 227 #if defined(_WIN32) 228 #define LUA_DIRSEP "\\" 229 #else 230 #define LUA_DIRSEP "/" 231 #endif 232 233 /* }================================================================== */ 234 235 236 /* 237 ** {================================================================== 238 ** Marks for exported symbols in the C code 239 ** =================================================================== 240 */ 241 242 /* 243 @@ LUA_API is a mark for all core API functions. 244 @@ LUALIB_API is a mark for all auxiliary library functions. 245 @@ LUAMOD_API is a mark for all standard library opening functions. 246 ** CHANGE them if you need to define those functions in some special way. 247 ** For instance, if you want to create one Windows DLL with the core and 248 ** the libraries, you may want to use the following definition (define 249 ** LUA_BUILD_AS_DLL to get it). 250 */ 251 #if defined(LUA_BUILD_AS_DLL) /* { */ 252 253 #if defined(LUA_CORE) || defined(LUA_LIB) /* { */ 254 #define LUA_API __declspec(dllexport) 255 #else /* }{ */ 256 #define LUA_API __declspec(dllimport) 257 #endif /* } */ 258 259 #else /* }{ */ 260 261 #define LUA_API extern 262 263 #endif /* } */ 264 265 266 /* more often than not the libs go together with the core */ 267 #define LUALIB_API LUA_API 268 #define LUAMOD_API LUALIB_API 269 270 271 /* 272 @@ LUAI_FUNC is a mark for all extern functions that are not to be 273 ** exported to outside modules. 274 @@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables 275 ** that are not to be exported to outside modules (LUAI_DDEF for 276 ** definitions and LUAI_DDEC for declarations). 277 ** CHANGE them if you need to mark them in some special way. Elf/gcc 278 ** (versions 3.2 and later) mark them as "hidden" to optimize access 279 ** when Lua is compiled as a shared library. Not all elf targets support 280 ** this attribute. Unfortunately, gcc does not offer a way to check 281 ** whether the target offers that support, and those without support 282 ** give a warning about it. To avoid these warnings, change to the 283 ** default definition. 284 */ 285 #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ 286 defined(__ELF__) /* { */ 287 #define LUAI_FUNC __attribute__((visibility("hidden"))) extern 288 #else /* }{ */ 289 #define LUAI_FUNC extern 290 #endif /* } */ 291 292 #define LUAI_DDEC LUAI_FUNC 293 #define LUAI_DDEF /* empty */ 294 295 /* }================================================================== */ 296 297 298 /* 299 ** {================================================================== 300 ** Compatibility with previous versions 301 ** =================================================================== 302 */ 303 304 /* 305 @@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2. 306 @@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1. 307 ** You can define it to get all options, or change specific options 308 ** to fit your specific needs. 309 */ 310 #if defined(LUA_COMPAT_5_2) /* { */ 311 312 /* 313 @@ LUA_COMPAT_MATHLIB controls the presence of several deprecated 314 ** functions in the mathematical library. 315 */ 316 #define LUA_COMPAT_MATHLIB 317 318 /* 319 @@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'. 320 */ 321 #define LUA_COMPAT_BITLIB 322 323 /* 324 @@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod. 325 */ 326 #define LUA_COMPAT_IPAIRS 327 328 /* 329 @@ LUA_COMPAT_APIINTCASTS controls the presence of macros for 330 ** manipulating other integer types (lua_pushunsigned, lua_tounsigned, 331 ** luaL_checkint, luaL_checklong, etc.) 332 */ 333 #define LUA_COMPAT_APIINTCASTS 334 335 #endif /* } */ 336 337 338 #if defined(LUA_COMPAT_5_1) /* { */ 339 340 /* Incompatibilities from 5.2 -> 5.3 */ 341 #define LUA_COMPAT_MATHLIB 342 #define LUA_COMPAT_APIINTCASTS 343 344 /* 345 @@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. 346 ** You can replace it with 'table.unpack'. 347 */ 348 #define LUA_COMPAT_UNPACK 349 350 /* 351 @@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. 352 ** You can replace it with 'package.searchers'. 353 */ 354 #define LUA_COMPAT_LOADERS 355 356 /* 357 @@ macro 'lua_cpcall' emulates deprecated function lua_cpcall. 358 ** You can call your C function directly (with light C functions). 359 */ 360 #define lua_cpcall(L,f,u) \ 361 (lua_pushcfunction(L, (f)), \ 362 lua_pushlightuserdata(L,(u)), \ 363 lua_pcall(L,1,0,0)) 364 365 366 /* 367 @@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. 368 ** You can rewrite 'log10(x)' as 'log(x, 10)'. 369 */ 370 #define LUA_COMPAT_LOG10 371 372 /* 373 @@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base 374 ** library. You can rewrite 'loadstring(s)' as 'load(s)'. 375 */ 376 #define LUA_COMPAT_LOADSTRING 377 378 /* 379 @@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. 380 */ 381 #define LUA_COMPAT_MAXN 382 383 /* 384 @@ The following macros supply trivial compatibility for some 385 ** changes in the API. The macros themselves document how to 386 ** change your code to avoid using them. 387 */ 388 #define lua_strlen(L,i) lua_rawlen(L, (i)) 389 390 #define lua_objlen(L,i) lua_rawlen(L, (i)) 391 392 #define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) 393 #define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) 394 395 /* 396 @@ LUA_COMPAT_MODULE controls compatibility with previous 397 ** module functions 'module' (Lua) and 'luaL_register' (C). 398 */ 399 #define LUA_COMPAT_MODULE 400 401 #endif /* } */ 402 403 404 /* 405 @@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a 406 @@ a float mark ('.0'). 407 ** This macro is not on by default even in compatibility mode, 408 ** because this is not really an incompatibility. 409 */ 410 /* #define LUA_COMPAT_FLOATSTRING */ 411 412 /* }================================================================== */ 413 414 415 416 /* 417 ** {================================================================== 418 ** Configuration for Numbers. 419 ** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_* 420 ** satisfy your needs. 421 ** =================================================================== 422 */ 423 424 #ifndef _KERNEL 425 /* 426 @@ LUA_NUMBER is the floating-point type used by Lua. 427 @@ LUAI_UACNUMBER is the result of a 'default argument promotion' 428 @@ over a floating number. 429 @@ l_mathlim(x) corrects limit name 'x' to the proper float type 430 ** by prefixing it with one of FLT/DBL/LDBL. 431 @@ LUA_NUMBER_FRMLEN is the length modifier for writing floats. 432 @@ LUA_NUMBER_FMT is the format for writing floats. 433 @@ lua_number2str converts a float to a string. 434 @@ l_mathop allows the addition of an 'l' or 'f' to all math operations. 435 @@ l_floor takes the floor of a float. 436 @@ lua_str2number converts a decimal numeric string to a number. 437 */ 438 439 440 /* The following definitions are good for most cases here */ 441 442 #define l_floor(x) (l_mathop(floor)(x)) 443 444 #define lua_number2str(s,sz,n) \ 445 l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n)) 446 447 /* 448 @@ lua_numbertointeger converts a float number to an integer, or 449 ** returns 0 if float is not within the range of a lua_Integer. 450 ** (The range comparisons are tricky because of rounding. The tests 451 ** here assume a two-complement representation, where MININTEGER always 452 ** has an exact representation as a float; MAXINTEGER may not have one, 453 ** and therefore its conversion to float may have an ill-defined value.) 454 */ 455 #define lua_numbertointeger(n,p) \ 456 ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \ 457 (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \ 458 (*(p) = (LUA_INTEGER)(n), 1)) 459 460 461 /* now the variable definitions */ 462 463 #if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT /* { single float */ 464 465 #define LUA_NUMBER float 466 467 #define l_mathlim(n) (FLT_##n) 468 469 #define LUAI_UACNUMBER double 470 471 #define LUA_NUMBER_FRMLEN "" 472 #define LUA_NUMBER_FMT "%.7g" 473 474 #define l_mathop(op) op##f 475 476 #define lua_str2number(s,p) strtof((s), (p)) 477 478 479 #elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE /* }{ long double */ 480 481 #define LUA_NUMBER long double 482 483 #define l_mathlim(n) (LDBL_##n) 484 485 #define LUAI_UACNUMBER long double 486 487 #define LUA_NUMBER_FRMLEN "L" 488 #define LUA_NUMBER_FMT "%.19Lg" 489 490 #define l_mathop(op) op##l 491 492 #define lua_str2number(s,p) strtold((s), (p)) 493 494 #elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE /* }{ double */ 495 496 #define LUA_NUMBER double 497 498 #define l_mathlim(n) (DBL_##n) 499 500 #define LUAI_UACNUMBER double 501 502 #define LUA_NUMBER_FRMLEN "" 503 #define LUA_NUMBER_FMT "%.14g" 504 505 #define l_mathop(op) op 506 507 #define lua_str2number(s,p) strtod((s), (p)) 508 509 #else /* }{ */ 510 511 #error "numeric float type not defined" 512 513 #endif /* } */ 514 #endif /*_KERNEL */ 515 516 517 518 /* 519 @@ LUA_INTEGER is the integer type used by Lua. 520 ** 521 @@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER. 522 ** 523 @@ LUAI_UACINT is the result of a 'default argument promotion' 524 @@ over a lUA_INTEGER. 525 @@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers. 526 @@ LUA_INTEGER_FMT is the format for writing integers. 527 @@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER. 528 @@ LUA_MININTEGER is the minimum value for a LUA_INTEGER. 529 @@ lua_integer2str converts an integer to a string. 530 */ 531 532 533 /* The following definitions are good for most cases here */ 534 535 #define LUA_INTEGER_FMT "%" LUA_INTEGER_FRMLEN "d" 536 537 #define LUAI_UACINT LUA_INTEGER 538 539 #define lua_integer2str(s,sz,n) \ 540 l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n)) 541 542 /* 543 ** use LUAI_UACINT here to avoid problems with promotions (which 544 ** can turn a comparison between unsigneds into a signed comparison) 545 */ 546 #define LUA_UNSIGNED unsigned LUAI_UACINT 547 548 549 /* now the variable definitions */ 550 551 #if LUA_INT_TYPE == LUA_INT_INT /* { int */ 552 553 #define LUA_INTEGER int 554 #define LUA_INTEGER_FRMLEN "" 555 556 #define LUA_MAXINTEGER INT_MAX 557 #define LUA_MININTEGER INT_MIN 558 559 #elif LUA_INT_TYPE == LUA_INT_LONG /* }{ long */ 560 561 #define LUA_INTEGER long 562 #define LUA_INTEGER_FRMLEN "l" 563 564 #define LUA_MAXINTEGER LONG_MAX 565 #define LUA_MININTEGER LONG_MIN 566 567 #elif LUA_INT_TYPE == LUA_INT_LONGLONG /* }{ long long */ 568 569 /* use presence of macro LLONG_MAX as proxy for C99 compliance */ 570 #if defined(LLONG_MAX) /* { */ 571 /* use ISO C99 stuff */ 572 573 #define LUA_INTEGER long long 574 #define LUA_INTEGER_FRMLEN "ll" 575 576 #define LUA_MAXINTEGER LLONG_MAX 577 #define LUA_MININTEGER LLONG_MIN 578 579 #elif defined(LUA_USE_WINDOWS) /* }{ */ 580 /* in Windows, can use specific Windows types */ 581 582 #define LUA_INTEGER __int64 583 #define LUA_INTEGER_FRMLEN "I64" 584 585 #define LUA_MAXINTEGER _I64_MAX 586 #define LUA_MININTEGER _I64_MIN 587 588 #else /* }{ */ 589 590 #error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \ 591 or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)" 592 593 #endif /* } */ 594 595 #else /* }{ */ 596 597 #error "numeric integer type not defined" 598 599 #endif /* } */ 600 601 /* }================================================================== */ 602 603 604 /* 605 ** {================================================================== 606 ** Dependencies with C99 and other C details 607 ** =================================================================== 608 */ 609 610 /* 611 @@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89. 612 ** (All uses in Lua have only one format item.) 613 */ 614 #if !defined(LUA_USE_C89) 615 #define l_sprintf(s,sz,f,i) snprintf(s,sz,f,i) 616 #else 617 #define l_sprintf(s,sz,f,i) ((void)(sz), sprintf(s,f,i)) 618 #endif 619 620 621 /* 622 @@ lua_strx2number converts an hexadecimal numeric string to a number. 623 ** In C99, 'strtod' does that conversion. Otherwise, you can 624 ** leave 'lua_strx2number' undefined and Lua will provide its own 625 ** implementation. 626 */ 627 #if !defined(LUA_USE_C89) 628 #define lua_strx2number(s,p) lua_str2number(s,p) 629 #endif 630 631 632 /* 633 @@ lua_number2strx converts a float to an hexadecimal numeric string. 634 ** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that. 635 ** Otherwise, you can leave 'lua_number2strx' undefined and Lua will 636 ** provide its own implementation. 637 */ 638 #if !defined(LUA_USE_C89) 639 #define lua_number2strx(L,b,sz,f,n) \ 640 ((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n))) 641 #endif 642 643 644 /* 645 ** 'strtof' and 'opf' variants for math functions are not valid in 646 ** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the 647 ** availability of these variants. ('math.h' is already included in 648 ** all files that use these macros.) 649 */ 650 #if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF)) 651 #undef l_mathop /* variants not available */ 652 #undef lua_str2number 653 #define l_mathop(op) (lua_Number)op /* no variant */ 654 #define lua_str2number(s,p) ((lua_Number)strtod((s), (p))) 655 #endif 656 657 658 /* 659 @@ LUA_KCONTEXT is the type of the context ('ctx') for continuation 660 ** functions. It must be a numerical type; Lua will use 'intptr_t' if 661 ** available, otherwise it will use 'ptrdiff_t' (the nearest thing to 662 ** 'intptr_t' in C89) 663 */ 664 #define LUA_KCONTEXT ptrdiff_t 665 666 #if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \ 667 __STDC_VERSION__ >= 199901L 668 #include <stdint.h> 669 #if defined(INTPTR_MAX) /* even in C99 this type is optional */ 670 #undef LUA_KCONTEXT 671 #define LUA_KCONTEXT intptr_t 672 #endif 673 #endif 674 675 676 /* 677 @@ lua_getlocaledecpoint gets the locale "radix character" (decimal point). 678 ** Change that if you do not want to use C locales. (Code using this 679 ** macro must include header 'locale.h'.) 680 */ 681 #if !defined(lua_getlocaledecpoint) 682 #define lua_getlocaledecpoint() (localeconv()->decimal_point[0]) 683 #endif 684 685 /* }================================================================== */ 686 687 688 /* 689 ** {================================================================== 690 ** Language Variations 691 ** ===================================================================== 692 */ 693 694 /* 695 @@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some 696 ** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from 697 ** numbers to strings. Define LUA_NOCVTS2N to turn off automatic 698 ** coercion from strings to numbers. 699 */ 700 /* #define LUA_NOCVTN2S */ 701 /* #define LUA_NOCVTS2N */ 702 703 704 /* 705 @@ LUA_USE_APICHECK turns on several consistency checks on the C API. 706 ** Define it as a help when debugging C code. 707 */ 708 #if defined(LUA_USE_APICHECK) 709 #include <assert.h> 710 #define luai_apicheck(l,e) assert(e) 711 #endif 712 713 /* }================================================================== */ 714 715 716 /* 717 ** {================================================================== 718 ** Macros that affect the API and must be stable (that is, must be the 719 ** same when you compile Lua and when you compile code that links to 720 ** Lua). You probably do not want/need to change them. 721 ** ===================================================================== 722 */ 723 724 /* 725 @@ LUAI_MAXSTACK limits the size of the Lua stack. 726 ** CHANGE it if you need a different limit. This limit is arbitrary; 727 ** its only purpose is to stop Lua from consuming unlimited stack 728 ** space (and to reserve some numbers for pseudo-indices). 729 */ 730 #if LUAI_BITSINT >= 32 731 #define LUAI_MAXSTACK 1000000 732 #else 733 #define LUAI_MAXSTACK 15000 734 #endif 735 736 737 /* 738 @@ LUA_EXTRASPACE defines the size of a raw memory area associated with 739 ** a Lua state with very fast access. 740 ** CHANGE it if you need a different size. 741 */ 742 #define LUA_EXTRASPACE (sizeof(void *)) 743 744 745 /* 746 @@ LUA_IDSIZE gives the maximum size for the description of the source 747 @@ of a function in debug information. 748 ** CHANGE it if you want a different size. 749 */ 750 #define LUA_IDSIZE 60 751 752 753 /* 754 @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 755 ** CHANGE it if it uses too much C-stack space. (For long double, 756 ** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a 757 ** smaller buffer would force a memory allocation for each call to 758 ** 'string.format'.) 759 */ 760 #ifdef _KERNEL 761 #define LUAL_BUFFERSIZE 128 762 #elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE 763 #define LUAL_BUFFERSIZE 8192 764 #else 765 #define LUAL_BUFFERSIZE ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer))) 766 #endif 767 768 /* }================================================================== */ 769 770 771 /* 772 @@ LUA_QL describes how error messages quote program elements. 773 ** Lua does not use these macros anymore; they are here for 774 ** compatibility only. 775 */ 776 #define LUA_QL(x) "'" x "'" 777 #define LUA_QS LUA_QL("%s") 778 779 780 781 782 /* =================================================================== */ 783 784 /* 785 ** Local configuration. You can use this space to add your redefinitions 786 ** without modifying the main part of the file. 787 */ 788 789 #ifdef __NetBSD__ 790 791 #define LUA_STRFTIMEOPTIONS "aAbBcCdDeFgGhHIjklmMnprRsStTuUvVwWxXyYzZ%" 792 793 /* Integer types */ 794 #undef LUA_INTEGER 795 #undef LUA_INTEGER_FRMLEN 796 #undef LUA_UNSIGNED 797 #undef LUA_MAXUNSIGNED 798 #undef LUA_MAXINTEGER 799 #undef LUA_MININTEGER 800 801 #define LUA_INTEGER intmax_t 802 #define LUA_INTEGER_FRMLEN "j" 803 #define LUA_UNSIGNED uintmax_t 804 #define LUA_MAXUNSIGNED UINTMAX_MAX 805 #define LUA_MAXINTEGER INTMAX_MAX 806 #define LUA_MININTEGER INTMAX_MIN 807 808 /* Path */ 809 #undef LUA_ROOT 810 #undef LUA_PATH_DEFAULT 811 #undef LUA_CPATH_DEFAULT 812 813 #define LUA_ROOT "/usr/" 814 #define LUA_PATH_DEFAULT \ 815 LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 816 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua" 817 #define LUA_CPATH_DEFAULT \ 818 LUA_CDIR"?.so;" LUA_CDIR"loadall.so" 819 820 #ifndef _KERNEL 821 822 #include <stdint.h> 823 824 #else /* _KERNEL */ 825 826 #define LUA_NUMBER LUA_INTEGER 827 #define LUA_NUMBER_FMT LUA_INTEGER_FMT 828 829 #define l_mathlim(n) (0) 830 #define l_randomizePivot() (~0) 831 832 /* setjmp.h */ 833 #define LUAI_THROW(L,c) longjmp(&((c)->b)) 834 #define LUAI_TRY(L,c,a) if (setjmp(&((c)->b)) == 0) { a } 835 #define luai_jmpbuf label_t 836 837 /* time.h */ 838 #include <sys/time.h> 839 #define time(p) (time_uptime) 840 841 /* stdio.h */ 842 #define lua_writestring(s,l) printf("%s", (s)) 843 #define lua_writeline() printf("\n") 844 845 /* string.h */ 846 #define strcoll strcmp 847 848 /* stdlib.h */ 849 #define abort() panic("Lua has aborted!") 850 851 #endif /* _KERNEL */ 852 853 #endif /* __NetBSD__ */ 854 855 #endif 856 857