xref: /freebsd/lib/liblua/luaconf.h (revision bceabe277e1286ec694e34c186a73e7bf2c9de4f)
1564b9ff2SBrooks Davis /* $FreeBSD$ */
2564b9ff2SBrooks Davis /*
3564b9ff2SBrooks Davis ** $Id: luaconf.h,v 1.259.1.1 2017/04/19 17:29:57 roberto Exp $
4564b9ff2SBrooks Davis ** Configuration file for Lua
5564b9ff2SBrooks Davis ** See Copyright Notice in lua.h
6564b9ff2SBrooks Davis */
7564b9ff2SBrooks Davis 
8564b9ff2SBrooks Davis 
9564b9ff2SBrooks Davis #ifndef luaconf_h
10564b9ff2SBrooks Davis #define luaconf_h
11564b9ff2SBrooks Davis 
12564b9ff2SBrooks Davis #include <limits.h>
13564b9ff2SBrooks Davis #include <stddef.h>
14564b9ff2SBrooks Davis 
15564b9ff2SBrooks Davis 
16564b9ff2SBrooks Davis /*
17564b9ff2SBrooks Davis ** ===================================================================
18564b9ff2SBrooks Davis ** Search for "@@" to find all configurable definitions.
19564b9ff2SBrooks Davis ** ===================================================================
20564b9ff2SBrooks Davis */
21564b9ff2SBrooks Davis 
22564b9ff2SBrooks Davis 
23564b9ff2SBrooks Davis /*
24564b9ff2SBrooks Davis ** {====================================================================
25564b9ff2SBrooks Davis ** System Configuration: macros to adapt (if needed) Lua to some
26564b9ff2SBrooks Davis ** particular platform, for instance compiling it with 32-bit numbers or
27564b9ff2SBrooks Davis ** restricting it to C89.
28564b9ff2SBrooks Davis ** =====================================================================
29564b9ff2SBrooks Davis */
30564b9ff2SBrooks Davis 
31564b9ff2SBrooks Davis /*
32564b9ff2SBrooks Davis @@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. You
33564b9ff2SBrooks Davis ** can also define LUA_32BITS in the make file, but changing here you
34564b9ff2SBrooks Davis ** ensure that all software connected to Lua will be compiled with the
35564b9ff2SBrooks Davis ** same configuration.
36564b9ff2SBrooks Davis */
37564b9ff2SBrooks Davis /* #define LUA_32BITS */
38564b9ff2SBrooks Davis 
39564b9ff2SBrooks Davis 
40564b9ff2SBrooks Davis /*
41564b9ff2SBrooks Davis @@ LUA_USE_C89 controls the use of non-ISO-C89 features.
42564b9ff2SBrooks Davis ** Define it if you want Lua to avoid the use of a few C99 features
43564b9ff2SBrooks Davis ** or Windows-specific features on Windows.
44564b9ff2SBrooks Davis */
45564b9ff2SBrooks Davis /* #define LUA_USE_C89 */
46564b9ff2SBrooks Davis 
47564b9ff2SBrooks Davis 
48564b9ff2SBrooks Davis /*
49564b9ff2SBrooks Davis ** By default, Lua on Windows use (some) specific Windows features
50564b9ff2SBrooks Davis */
51564b9ff2SBrooks Davis #if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE)
52564b9ff2SBrooks Davis #define LUA_USE_WINDOWS  /* enable goodies for regular Windows */
53564b9ff2SBrooks Davis #endif
54564b9ff2SBrooks Davis 
55564b9ff2SBrooks Davis 
56564b9ff2SBrooks Davis #if defined(LUA_USE_WINDOWS)
57564b9ff2SBrooks Davis #define LUA_DL_DLL	/* enable support for DLL */
58564b9ff2SBrooks Davis #define LUA_USE_C89	/* broadly, Windows is C89 */
59564b9ff2SBrooks Davis #endif
60564b9ff2SBrooks Davis 
61564b9ff2SBrooks Davis 
62564b9ff2SBrooks Davis #if defined(LUA_USE_LINUX)
63564b9ff2SBrooks Davis #define LUA_USE_POSIX
64564b9ff2SBrooks Davis #define LUA_USE_DLOPEN		/* needs an extra library: -ldl */
65564b9ff2SBrooks Davis #define LUA_USE_READLINE	/* needs some extra libraries */
66564b9ff2SBrooks Davis #endif
67564b9ff2SBrooks Davis 
68564b9ff2SBrooks Davis 
69564b9ff2SBrooks Davis #if defined(LUA_USE_MACOSX)
70564b9ff2SBrooks Davis #define LUA_USE_POSIX
71564b9ff2SBrooks Davis #define LUA_USE_DLOPEN		/* MacOS does not need -ldl */
72564b9ff2SBrooks Davis #define LUA_USE_READLINE	/* needs an extra library: -lreadline */
73564b9ff2SBrooks Davis #endif
74564b9ff2SBrooks Davis 
75564b9ff2SBrooks Davis /* Local modifications: need io.popen */
76564b9ff2SBrooks Davis #ifdef __FreeBSD__
77564b9ff2SBrooks Davis #define LUA_USE_POSIX
78564b9ff2SBrooks Davis #endif
79564b9ff2SBrooks Davis 
80564b9ff2SBrooks Davis /*
81564b9ff2SBrooks Davis @@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for
82564b9ff2SBrooks Davis ** C89 ('long' and 'double'); Windows always has '__int64', so it does
83564b9ff2SBrooks Davis ** not need to use this case.
84564b9ff2SBrooks Davis */
85564b9ff2SBrooks Davis #if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS)
86564b9ff2SBrooks Davis #define LUA_C89_NUMBERS
87564b9ff2SBrooks Davis #endif
88564b9ff2SBrooks Davis 
89564b9ff2SBrooks Davis 
90564b9ff2SBrooks Davis 
91564b9ff2SBrooks Davis /*
92564b9ff2SBrooks Davis @@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'.
93564b9ff2SBrooks Davis */
94564b9ff2SBrooks Davis /* avoid undefined shifts */
95564b9ff2SBrooks Davis #if ((INT_MAX >> 15) >> 15) >= 1
96564b9ff2SBrooks Davis #define LUAI_BITSINT	32
97564b9ff2SBrooks Davis #else
98564b9ff2SBrooks Davis /* 'int' always must have at least 16 bits */
99564b9ff2SBrooks Davis #define LUAI_BITSINT	16
100564b9ff2SBrooks Davis #endif
101564b9ff2SBrooks Davis 
102564b9ff2SBrooks Davis 
103564b9ff2SBrooks Davis /*
104564b9ff2SBrooks Davis @@ LUA_INT_TYPE defines the type for Lua integers.
105564b9ff2SBrooks Davis @@ LUA_FLOAT_TYPE defines the type for Lua floats.
106564b9ff2SBrooks Davis ** Lua should work fine with any mix of these options (if supported
107564b9ff2SBrooks Davis ** by your C compiler). The usual configurations are 64-bit integers
108564b9ff2SBrooks Davis ** and 'double' (the default), 32-bit integers and 'float' (for
109564b9ff2SBrooks Davis ** restricted platforms), and 'long'/'double' (for C compilers not
110564b9ff2SBrooks Davis ** compliant with C99, which may not have support for 'long long').
111564b9ff2SBrooks Davis */
112564b9ff2SBrooks Davis 
113564b9ff2SBrooks Davis /* predefined options for LUA_INT_TYPE */
114564b9ff2SBrooks Davis #define LUA_INT_INT		1
115564b9ff2SBrooks Davis #define LUA_INT_LONG		2
116564b9ff2SBrooks Davis #define LUA_INT_LONGLONG	3
117564b9ff2SBrooks Davis 
118564b9ff2SBrooks Davis /* predefined options for LUA_FLOAT_TYPE */
119564b9ff2SBrooks Davis #define LUA_FLOAT_FLOAT		1
120564b9ff2SBrooks Davis #define LUA_FLOAT_DOUBLE	2
121564b9ff2SBrooks Davis #define LUA_FLOAT_LONGDOUBLE	3
122564b9ff2SBrooks Davis 
123564b9ff2SBrooks Davis #if defined(LUA_32BITS)		/* { */
124564b9ff2SBrooks Davis /*
125564b9ff2SBrooks Davis ** 32-bit integers and 'float'
126564b9ff2SBrooks Davis */
127564b9ff2SBrooks Davis #if LUAI_BITSINT >= 32  /* use 'int' if big enough */
128564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_INT
129564b9ff2SBrooks Davis #else  /* otherwise use 'long' */
130564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_LONG
131564b9ff2SBrooks Davis #endif
132564b9ff2SBrooks Davis #define LUA_FLOAT_TYPE	LUA_FLOAT_FLOAT
133564b9ff2SBrooks Davis 
134564b9ff2SBrooks Davis #elif defined(LUA_C89_NUMBERS)	/* }{ */
135564b9ff2SBrooks Davis /*
136564b9ff2SBrooks Davis ** largest types available for C89 ('long' and 'double')
137564b9ff2SBrooks Davis */
138564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_LONG
139564b9ff2SBrooks Davis #define LUA_FLOAT_TYPE	LUA_FLOAT_DOUBLE
140564b9ff2SBrooks Davis 
141564b9ff2SBrooks Davis #endif				/* } */
142564b9ff2SBrooks Davis 
143564b9ff2SBrooks Davis 
144564b9ff2SBrooks Davis /*
145564b9ff2SBrooks Davis ** default configuration for 64-bit Lua ('long long' and 'double')
146564b9ff2SBrooks Davis */
147564b9ff2SBrooks Davis #if !defined(LUA_INT_TYPE)
148564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_LONGLONG
149564b9ff2SBrooks Davis #endif
150564b9ff2SBrooks Davis 
151564b9ff2SBrooks Davis #if !defined(LUA_FLOAT_TYPE)
152564b9ff2SBrooks Davis #define LUA_FLOAT_TYPE	LUA_FLOAT_DOUBLE
153564b9ff2SBrooks Davis #endif
154564b9ff2SBrooks Davis 
155564b9ff2SBrooks Davis /* }================================================================== */
156564b9ff2SBrooks Davis 
157564b9ff2SBrooks Davis 
158564b9ff2SBrooks Davis 
159564b9ff2SBrooks Davis 
160564b9ff2SBrooks Davis /*
161564b9ff2SBrooks Davis ** {==================================================================
162564b9ff2SBrooks Davis ** Configuration for Paths.
163564b9ff2SBrooks Davis ** ===================================================================
164564b9ff2SBrooks Davis */
165564b9ff2SBrooks Davis 
166564b9ff2SBrooks Davis /*
167564b9ff2SBrooks Davis ** LUA_PATH_SEP is the character that separates templates in a path.
168564b9ff2SBrooks Davis ** LUA_PATH_MARK is the string that marks the substitution points in a
169564b9ff2SBrooks Davis ** template.
170564b9ff2SBrooks Davis ** LUA_EXEC_DIR in a Windows path is replaced by the executable's
171564b9ff2SBrooks Davis ** directory.
172564b9ff2SBrooks Davis */
173564b9ff2SBrooks Davis #define LUA_PATH_SEP            ";"
174564b9ff2SBrooks Davis #define LUA_PATH_MARK           "?"
175564b9ff2SBrooks Davis #define LUA_EXEC_DIR            "!"
176564b9ff2SBrooks Davis 
177564b9ff2SBrooks Davis 
178564b9ff2SBrooks Davis /*
179564b9ff2SBrooks Davis @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
180564b9ff2SBrooks Davis ** Lua libraries.
181564b9ff2SBrooks Davis @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
182564b9ff2SBrooks Davis ** C libraries.
183564b9ff2SBrooks Davis ** CHANGE them if your machine has a non-conventional directory
184564b9ff2SBrooks Davis ** hierarchy or if you want to install your libraries in
185564b9ff2SBrooks Davis ** non-conventional directories.
186564b9ff2SBrooks Davis */
187564b9ff2SBrooks Davis #define LUA_VDIR	LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
188564b9ff2SBrooks Davis #if defined(_WIN32)	/* { */
189564b9ff2SBrooks Davis /*
190564b9ff2SBrooks Davis ** In Windows, any exclamation mark ('!') in the path is replaced by the
191564b9ff2SBrooks Davis ** path of the directory of the executable file of the current process.
192564b9ff2SBrooks Davis */
193564b9ff2SBrooks Davis #define LUA_LDIR	"!\\lua\\"
194564b9ff2SBrooks Davis #define LUA_CDIR	"!\\"
195564b9ff2SBrooks Davis #define LUA_SHRDIR	"!\\..\\share\\lua\\" LUA_VDIR "\\"
196564b9ff2SBrooks Davis #define LUA_PATH_DEFAULT  \
197564b9ff2SBrooks Davis 		LUA_LDIR"?.lua;"  LUA_LDIR"?\\init.lua;" \
198564b9ff2SBrooks Davis 		LUA_CDIR"?.lua;"  LUA_CDIR"?\\init.lua;" \
199564b9ff2SBrooks Davis 		LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \
200564b9ff2SBrooks Davis 		".\\?.lua;" ".\\?\\init.lua"
201564b9ff2SBrooks Davis #define LUA_CPATH_DEFAULT \
202564b9ff2SBrooks Davis 		LUA_CDIR"?.dll;" \
203564b9ff2SBrooks Davis 		LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \
204564b9ff2SBrooks Davis 		LUA_CDIR"loadall.dll;" ".\\?.dll"
205564b9ff2SBrooks Davis 
206564b9ff2SBrooks Davis #else			/* }{ */
207564b9ff2SBrooks Davis 
208*bceabe27SEd Maste #define LUA_ROOT	"/usr/"
209*bceabe27SEd Maste #define LUA_LDIR	LUA_ROOT "share/flua/"
210*bceabe27SEd Maste #define LUA_CDIR	LUA_ROOT "lib/flua/"
211be99f886SEd Maste #if !defined(LUA_PATH_DEFAULT)
212564b9ff2SBrooks Davis #define LUA_PATH_DEFAULT  \
213564b9ff2SBrooks Davis 		LUA_LDIR"?.lua;"  LUA_LDIR"?/init.lua;" \
214564b9ff2SBrooks Davis 		LUA_CDIR"?.lua;"  LUA_CDIR"?/init.lua;" \
215564b9ff2SBrooks Davis 		"./?.lua;" "./?/init.lua"
216be99f886SEd Maste #endif
217be99f886SEd Maste #if !defined(LUA_CPATH_DEFAULT)
218564b9ff2SBrooks Davis #define LUA_CPATH_DEFAULT \
219564b9ff2SBrooks Davis 		LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so"
220be99f886SEd Maste #endif
221564b9ff2SBrooks Davis #endif			/* } */
222564b9ff2SBrooks Davis 
223564b9ff2SBrooks Davis 
224564b9ff2SBrooks Davis /*
225564b9ff2SBrooks Davis @@ LUA_DIRSEP is the directory separator (for submodules).
226564b9ff2SBrooks Davis ** CHANGE it if your machine does not use "/" as the directory separator
227564b9ff2SBrooks Davis ** and is not Windows. (On Windows Lua automatically uses "\".)
228564b9ff2SBrooks Davis */
229564b9ff2SBrooks Davis #if defined(_WIN32)
230564b9ff2SBrooks Davis #define LUA_DIRSEP	"\\"
231564b9ff2SBrooks Davis #else
232564b9ff2SBrooks Davis #define LUA_DIRSEP	"/"
233564b9ff2SBrooks Davis #endif
234564b9ff2SBrooks Davis 
235564b9ff2SBrooks Davis /* }================================================================== */
236564b9ff2SBrooks Davis 
237564b9ff2SBrooks Davis 
238564b9ff2SBrooks Davis /*
239564b9ff2SBrooks Davis ** {==================================================================
240564b9ff2SBrooks Davis ** Marks for exported symbols in the C code
241564b9ff2SBrooks Davis ** ===================================================================
242564b9ff2SBrooks Davis */
243564b9ff2SBrooks Davis 
244564b9ff2SBrooks Davis /*
245564b9ff2SBrooks Davis @@ LUA_API is a mark for all core API functions.
246564b9ff2SBrooks Davis @@ LUALIB_API is a mark for all auxiliary library functions.
247564b9ff2SBrooks Davis @@ LUAMOD_API is a mark for all standard library opening functions.
248564b9ff2SBrooks Davis ** CHANGE them if you need to define those functions in some special way.
249564b9ff2SBrooks Davis ** For instance, if you want to create one Windows DLL with the core and
250564b9ff2SBrooks Davis ** the libraries, you may want to use the following definition (define
251564b9ff2SBrooks Davis ** LUA_BUILD_AS_DLL to get it).
252564b9ff2SBrooks Davis */
253564b9ff2SBrooks Davis #if defined(LUA_BUILD_AS_DLL)	/* { */
254564b9ff2SBrooks Davis 
255564b9ff2SBrooks Davis #if defined(LUA_CORE) || defined(LUA_LIB)	/* { */
256564b9ff2SBrooks Davis #define LUA_API __declspec(dllexport)
257564b9ff2SBrooks Davis #else						/* }{ */
258564b9ff2SBrooks Davis #define LUA_API __declspec(dllimport)
259564b9ff2SBrooks Davis #endif						/* } */
260564b9ff2SBrooks Davis 
261564b9ff2SBrooks Davis #else				/* }{ */
262564b9ff2SBrooks Davis 
263564b9ff2SBrooks Davis #define LUA_API		extern
264564b9ff2SBrooks Davis 
265564b9ff2SBrooks Davis #endif				/* } */
266564b9ff2SBrooks Davis 
267564b9ff2SBrooks Davis 
268564b9ff2SBrooks Davis /* more often than not the libs go together with the core */
269564b9ff2SBrooks Davis #define LUALIB_API	LUA_API
270564b9ff2SBrooks Davis #define LUAMOD_API	LUALIB_API
271564b9ff2SBrooks Davis 
272564b9ff2SBrooks Davis 
273564b9ff2SBrooks Davis /*
274564b9ff2SBrooks Davis @@ LUAI_FUNC is a mark for all extern functions that are not to be
275564b9ff2SBrooks Davis ** exported to outside modules.
276564b9ff2SBrooks Davis @@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
277564b9ff2SBrooks Davis ** that are not to be exported to outside modules (LUAI_DDEF for
278564b9ff2SBrooks Davis ** definitions and LUAI_DDEC for declarations).
279564b9ff2SBrooks Davis ** CHANGE them if you need to mark them in some special way. Elf/gcc
280564b9ff2SBrooks Davis ** (versions 3.2 and later) mark them as "hidden" to optimize access
281564b9ff2SBrooks Davis ** when Lua is compiled as a shared library. Not all elf targets support
282564b9ff2SBrooks Davis ** this attribute. Unfortunately, gcc does not offer a way to check
283564b9ff2SBrooks Davis ** whether the target offers that support, and those without support
284564b9ff2SBrooks Davis ** give a warning about it. To avoid these warnings, change to the
285564b9ff2SBrooks Davis ** default definition.
286564b9ff2SBrooks Davis */
287564b9ff2SBrooks Davis #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
288564b9ff2SBrooks Davis     defined(__ELF__)		/* { */
289564b9ff2SBrooks Davis #define LUAI_FUNC	__attribute__((visibility("hidden"))) extern
290564b9ff2SBrooks Davis #else				/* }{ */
291564b9ff2SBrooks Davis #define LUAI_FUNC	extern
292564b9ff2SBrooks Davis #endif				/* } */
293564b9ff2SBrooks Davis 
294564b9ff2SBrooks Davis #define LUAI_DDEC	LUAI_FUNC
295564b9ff2SBrooks Davis #define LUAI_DDEF	/* empty */
296564b9ff2SBrooks Davis 
297564b9ff2SBrooks Davis /* }================================================================== */
298564b9ff2SBrooks Davis 
299564b9ff2SBrooks Davis 
300564b9ff2SBrooks Davis /*
301564b9ff2SBrooks Davis ** {==================================================================
302564b9ff2SBrooks Davis ** Compatibility with previous versions
303564b9ff2SBrooks Davis ** ===================================================================
304564b9ff2SBrooks Davis */
305564b9ff2SBrooks Davis 
306564b9ff2SBrooks Davis /*
307564b9ff2SBrooks Davis @@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2.
308564b9ff2SBrooks Davis @@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1.
309564b9ff2SBrooks Davis ** You can define it to get all options, or change specific options
310564b9ff2SBrooks Davis ** to fit your specific needs.
311564b9ff2SBrooks Davis */
312564b9ff2SBrooks Davis #if defined(LUA_COMPAT_5_2)	/* { */
313564b9ff2SBrooks Davis 
314564b9ff2SBrooks Davis /*
315564b9ff2SBrooks Davis @@ LUA_COMPAT_MATHLIB controls the presence of several deprecated
316564b9ff2SBrooks Davis ** functions in the mathematical library.
317564b9ff2SBrooks Davis */
318564b9ff2SBrooks Davis #define LUA_COMPAT_MATHLIB
319564b9ff2SBrooks Davis 
320564b9ff2SBrooks Davis /*
321564b9ff2SBrooks Davis @@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'.
322564b9ff2SBrooks Davis */
323564b9ff2SBrooks Davis #define LUA_COMPAT_BITLIB
324564b9ff2SBrooks Davis 
325564b9ff2SBrooks Davis /*
326564b9ff2SBrooks Davis @@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod.
327564b9ff2SBrooks Davis */
328564b9ff2SBrooks Davis #define LUA_COMPAT_IPAIRS
329564b9ff2SBrooks Davis 
330564b9ff2SBrooks Davis /*
331564b9ff2SBrooks Davis @@ LUA_COMPAT_APIINTCASTS controls the presence of macros for
332564b9ff2SBrooks Davis ** manipulating other integer types (lua_pushunsigned, lua_tounsigned,
333564b9ff2SBrooks Davis ** luaL_checkint, luaL_checklong, etc.)
334564b9ff2SBrooks Davis */
335564b9ff2SBrooks Davis #define LUA_COMPAT_APIINTCASTS
336564b9ff2SBrooks Davis 
337564b9ff2SBrooks Davis #endif				/* } */
338564b9ff2SBrooks Davis 
339564b9ff2SBrooks Davis 
340564b9ff2SBrooks Davis #if defined(LUA_COMPAT_5_1)	/* { */
341564b9ff2SBrooks Davis 
342564b9ff2SBrooks Davis /* Incompatibilities from 5.2 -> 5.3 */
343564b9ff2SBrooks Davis #define LUA_COMPAT_MATHLIB
344564b9ff2SBrooks Davis #define LUA_COMPAT_APIINTCASTS
345564b9ff2SBrooks Davis 
346564b9ff2SBrooks Davis /*
347564b9ff2SBrooks Davis @@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
348564b9ff2SBrooks Davis ** You can replace it with 'table.unpack'.
349564b9ff2SBrooks Davis */
350564b9ff2SBrooks Davis #define LUA_COMPAT_UNPACK
351564b9ff2SBrooks Davis 
352564b9ff2SBrooks Davis /*
353564b9ff2SBrooks Davis @@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
354564b9ff2SBrooks Davis ** You can replace it with 'package.searchers'.
355564b9ff2SBrooks Davis */
356564b9ff2SBrooks Davis #define LUA_COMPAT_LOADERS
357564b9ff2SBrooks Davis 
358564b9ff2SBrooks Davis /*
359564b9ff2SBrooks Davis @@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
360564b9ff2SBrooks Davis ** You can call your C function directly (with light C functions).
361564b9ff2SBrooks Davis */
362564b9ff2SBrooks Davis #define lua_cpcall(L,f,u)  \
363564b9ff2SBrooks Davis 	(lua_pushcfunction(L, (f)), \
364564b9ff2SBrooks Davis 	 lua_pushlightuserdata(L,(u)), \
365564b9ff2SBrooks Davis 	 lua_pcall(L,1,0,0))
366564b9ff2SBrooks Davis 
367564b9ff2SBrooks Davis 
368564b9ff2SBrooks Davis /*
369564b9ff2SBrooks Davis @@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
370564b9ff2SBrooks Davis ** You can rewrite 'log10(x)' as 'log(x, 10)'.
371564b9ff2SBrooks Davis */
372564b9ff2SBrooks Davis #define LUA_COMPAT_LOG10
373564b9ff2SBrooks Davis 
374564b9ff2SBrooks Davis /*
375564b9ff2SBrooks Davis @@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
376564b9ff2SBrooks Davis ** library. You can rewrite 'loadstring(s)' as 'load(s)'.
377564b9ff2SBrooks Davis */
378564b9ff2SBrooks Davis #define LUA_COMPAT_LOADSTRING
379564b9ff2SBrooks Davis 
380564b9ff2SBrooks Davis /*
381564b9ff2SBrooks Davis @@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
382564b9ff2SBrooks Davis */
383564b9ff2SBrooks Davis #define LUA_COMPAT_MAXN
384564b9ff2SBrooks Davis 
385564b9ff2SBrooks Davis /*
386564b9ff2SBrooks Davis @@ The following macros supply trivial compatibility for some
387564b9ff2SBrooks Davis ** changes in the API. The macros themselves document how to
388564b9ff2SBrooks Davis ** change your code to avoid using them.
389564b9ff2SBrooks Davis */
390564b9ff2SBrooks Davis #define lua_strlen(L,i)		lua_rawlen(L, (i))
391564b9ff2SBrooks Davis 
392564b9ff2SBrooks Davis #define lua_objlen(L,i)		lua_rawlen(L, (i))
393564b9ff2SBrooks Davis 
394564b9ff2SBrooks Davis #define lua_equal(L,idx1,idx2)		lua_compare(L,(idx1),(idx2),LUA_OPEQ)
395564b9ff2SBrooks Davis #define lua_lessthan(L,idx1,idx2)	lua_compare(L,(idx1),(idx2),LUA_OPLT)
396564b9ff2SBrooks Davis 
397564b9ff2SBrooks Davis /*
398564b9ff2SBrooks Davis @@ LUA_COMPAT_MODULE controls compatibility with previous
399564b9ff2SBrooks Davis ** module functions 'module' (Lua) and 'luaL_register' (C).
400564b9ff2SBrooks Davis */
401564b9ff2SBrooks Davis #define LUA_COMPAT_MODULE
402564b9ff2SBrooks Davis 
403564b9ff2SBrooks Davis #endif				/* } */
404564b9ff2SBrooks Davis 
405564b9ff2SBrooks Davis 
406564b9ff2SBrooks Davis /*
407564b9ff2SBrooks Davis @@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a
408564b9ff2SBrooks Davis @@ a float mark ('.0').
409564b9ff2SBrooks Davis ** This macro is not on by default even in compatibility mode,
410564b9ff2SBrooks Davis ** because this is not really an incompatibility.
411564b9ff2SBrooks Davis */
412564b9ff2SBrooks Davis /* #define LUA_COMPAT_FLOATSTRING */
413564b9ff2SBrooks Davis 
414564b9ff2SBrooks Davis /* }================================================================== */
415564b9ff2SBrooks Davis 
416564b9ff2SBrooks Davis 
417564b9ff2SBrooks Davis 
418564b9ff2SBrooks Davis /*
419564b9ff2SBrooks Davis ** {==================================================================
420564b9ff2SBrooks Davis ** Configuration for Numbers.
421564b9ff2SBrooks Davis ** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_*
422564b9ff2SBrooks Davis ** satisfy your needs.
423564b9ff2SBrooks Davis ** ===================================================================
424564b9ff2SBrooks Davis */
425564b9ff2SBrooks Davis 
426564b9ff2SBrooks Davis /*
427564b9ff2SBrooks Davis @@ LUA_NUMBER is the floating-point type used by Lua.
428564b9ff2SBrooks Davis @@ LUAI_UACNUMBER is the result of a 'default argument promotion'
429564b9ff2SBrooks Davis @@ over a floating number.
430564b9ff2SBrooks Davis @@ l_mathlim(x) corrects limit name 'x' to the proper float type
431564b9ff2SBrooks Davis ** by prefixing it with one of FLT/DBL/LDBL.
432564b9ff2SBrooks Davis @@ LUA_NUMBER_FRMLEN is the length modifier for writing floats.
433564b9ff2SBrooks Davis @@ LUA_NUMBER_FMT is the format for writing floats.
434564b9ff2SBrooks Davis @@ lua_number2str converts a float to a string.
435564b9ff2SBrooks Davis @@ l_mathop allows the addition of an 'l' or 'f' to all math operations.
436564b9ff2SBrooks Davis @@ l_floor takes the floor of a float.
437564b9ff2SBrooks Davis @@ lua_str2number converts a decimal numeric string to a number.
438564b9ff2SBrooks Davis */
439564b9ff2SBrooks Davis 
440564b9ff2SBrooks Davis 
441564b9ff2SBrooks Davis /* The following definitions are good for most cases here */
442564b9ff2SBrooks Davis 
443564b9ff2SBrooks Davis #define l_floor(x)		(l_mathop(floor)(x))
444564b9ff2SBrooks Davis 
445564b9ff2SBrooks Davis #define lua_number2str(s,sz,n)  \
446564b9ff2SBrooks Davis 	l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n))
447564b9ff2SBrooks Davis 
448564b9ff2SBrooks Davis /*
449564b9ff2SBrooks Davis @@ lua_numbertointeger converts a float number to an integer, or
450564b9ff2SBrooks Davis ** returns 0 if float is not within the range of a lua_Integer.
451564b9ff2SBrooks Davis ** (The range comparisons are tricky because of rounding. The tests
452564b9ff2SBrooks Davis ** here assume a two-complement representation, where MININTEGER always
453564b9ff2SBrooks Davis ** has an exact representation as a float; MAXINTEGER may not have one,
454564b9ff2SBrooks Davis ** and therefore its conversion to float may have an ill-defined value.)
455564b9ff2SBrooks Davis */
456564b9ff2SBrooks Davis #define lua_numbertointeger(n,p) \
457564b9ff2SBrooks Davis   ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \
458564b9ff2SBrooks Davis    (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \
459564b9ff2SBrooks Davis       (*(p) = (LUA_INTEGER)(n), 1))
460564b9ff2SBrooks Davis 
461564b9ff2SBrooks Davis 
462564b9ff2SBrooks Davis /* now the variable definitions */
463564b9ff2SBrooks Davis 
464564b9ff2SBrooks Davis #if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT		/* { single float */
465564b9ff2SBrooks Davis 
466564b9ff2SBrooks Davis #define LUA_NUMBER	float
467564b9ff2SBrooks Davis 
468564b9ff2SBrooks Davis #define l_mathlim(n)		(FLT_##n)
469564b9ff2SBrooks Davis 
470564b9ff2SBrooks Davis #define LUAI_UACNUMBER	double
471564b9ff2SBrooks Davis 
472564b9ff2SBrooks Davis #define LUA_NUMBER_FRMLEN	""
473564b9ff2SBrooks Davis #define LUA_NUMBER_FMT		"%.7g"
474564b9ff2SBrooks Davis 
475564b9ff2SBrooks Davis #define l_mathop(op)		op##f
476564b9ff2SBrooks Davis 
477564b9ff2SBrooks Davis #define lua_str2number(s,p)	strtof((s), (p))
478564b9ff2SBrooks Davis 
479564b9ff2SBrooks Davis 
480564b9ff2SBrooks Davis #elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE	/* }{ long double */
481564b9ff2SBrooks Davis 
482564b9ff2SBrooks Davis #define LUA_NUMBER	long double
483564b9ff2SBrooks Davis 
484564b9ff2SBrooks Davis #define l_mathlim(n)		(LDBL_##n)
485564b9ff2SBrooks Davis 
486564b9ff2SBrooks Davis #define LUAI_UACNUMBER	long double
487564b9ff2SBrooks Davis 
488564b9ff2SBrooks Davis #define LUA_NUMBER_FRMLEN	"L"
489564b9ff2SBrooks Davis #define LUA_NUMBER_FMT		"%.19Lg"
490564b9ff2SBrooks Davis 
491564b9ff2SBrooks Davis #define l_mathop(op)		op##l
492564b9ff2SBrooks Davis 
493564b9ff2SBrooks Davis #define lua_str2number(s,p)	strtold((s), (p))
494564b9ff2SBrooks Davis 
495564b9ff2SBrooks Davis #elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE	/* }{ double */
496564b9ff2SBrooks Davis 
497564b9ff2SBrooks Davis #define LUA_NUMBER	double
498564b9ff2SBrooks Davis 
499564b9ff2SBrooks Davis #define l_mathlim(n)		(DBL_##n)
500564b9ff2SBrooks Davis 
501564b9ff2SBrooks Davis #define LUAI_UACNUMBER	double
502564b9ff2SBrooks Davis 
503564b9ff2SBrooks Davis #define LUA_NUMBER_FRMLEN	""
504564b9ff2SBrooks Davis #define LUA_NUMBER_FMT		"%.14g"
505564b9ff2SBrooks Davis 
506564b9ff2SBrooks Davis #define l_mathop(op)		op
507564b9ff2SBrooks Davis 
508564b9ff2SBrooks Davis #define lua_str2number(s,p)	strtod((s), (p))
509564b9ff2SBrooks Davis 
510564b9ff2SBrooks Davis #else						/* }{ */
511564b9ff2SBrooks Davis 
512564b9ff2SBrooks Davis #error "numeric float type not defined"
513564b9ff2SBrooks Davis 
514564b9ff2SBrooks Davis #endif					/* } */
515564b9ff2SBrooks Davis 
516564b9ff2SBrooks Davis 
517564b9ff2SBrooks Davis 
518564b9ff2SBrooks Davis /*
519564b9ff2SBrooks Davis @@ LUA_INTEGER is the integer type used by Lua.
520564b9ff2SBrooks Davis **
521564b9ff2SBrooks Davis @@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER.
522564b9ff2SBrooks Davis **
523564b9ff2SBrooks Davis @@ LUAI_UACINT is the result of a 'default argument promotion'
524564b9ff2SBrooks Davis @@ over a lUA_INTEGER.
525564b9ff2SBrooks Davis @@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers.
526564b9ff2SBrooks Davis @@ LUA_INTEGER_FMT is the format for writing integers.
527564b9ff2SBrooks Davis @@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER.
528564b9ff2SBrooks Davis @@ LUA_MININTEGER is the minimum value for a LUA_INTEGER.
529564b9ff2SBrooks Davis @@ lua_integer2str converts an integer to a string.
530564b9ff2SBrooks Davis */
531564b9ff2SBrooks Davis 
532564b9ff2SBrooks Davis 
533564b9ff2SBrooks Davis /* The following definitions are good for most cases here */
534564b9ff2SBrooks Davis 
535564b9ff2SBrooks Davis #define LUA_INTEGER_FMT		"%" LUA_INTEGER_FRMLEN "d"
536564b9ff2SBrooks Davis 
537564b9ff2SBrooks Davis #define LUAI_UACINT		LUA_INTEGER
538564b9ff2SBrooks Davis 
539564b9ff2SBrooks Davis #define lua_integer2str(s,sz,n)  \
540564b9ff2SBrooks Davis 	l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n))
541564b9ff2SBrooks Davis 
542564b9ff2SBrooks Davis /*
543564b9ff2SBrooks Davis ** use LUAI_UACINT here to avoid problems with promotions (which
544564b9ff2SBrooks Davis ** can turn a comparison between unsigneds into a signed comparison)
545564b9ff2SBrooks Davis */
546564b9ff2SBrooks Davis #define LUA_UNSIGNED		unsigned LUAI_UACINT
547564b9ff2SBrooks Davis 
548564b9ff2SBrooks Davis 
549564b9ff2SBrooks Davis /* now the variable definitions */
550564b9ff2SBrooks Davis 
551564b9ff2SBrooks Davis #if LUA_INT_TYPE == LUA_INT_INT		/* { int */
552564b9ff2SBrooks Davis 
553564b9ff2SBrooks Davis #define LUA_INTEGER		int
554564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	""
555564b9ff2SBrooks Davis 
556564b9ff2SBrooks Davis #define LUA_MAXINTEGER		INT_MAX
557564b9ff2SBrooks Davis #define LUA_MININTEGER		INT_MIN
558564b9ff2SBrooks Davis 
559564b9ff2SBrooks Davis #elif LUA_INT_TYPE == LUA_INT_LONG	/* }{ long */
560564b9ff2SBrooks Davis 
561564b9ff2SBrooks Davis #define LUA_INTEGER		long
562564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	"l"
563564b9ff2SBrooks Davis 
564564b9ff2SBrooks Davis #define LUA_MAXINTEGER		LONG_MAX
565564b9ff2SBrooks Davis #define LUA_MININTEGER		LONG_MIN
566564b9ff2SBrooks Davis 
567564b9ff2SBrooks Davis #elif LUA_INT_TYPE == LUA_INT_LONGLONG	/* }{ long long */
568564b9ff2SBrooks Davis 
569564b9ff2SBrooks Davis /* use presence of macro LLONG_MAX as proxy for C99 compliance */
570564b9ff2SBrooks Davis #if defined(LLONG_MAX)		/* { */
571564b9ff2SBrooks Davis /* use ISO C99 stuff */
572564b9ff2SBrooks Davis 
573564b9ff2SBrooks Davis #define LUA_INTEGER		long long
574564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	"ll"
575564b9ff2SBrooks Davis 
576564b9ff2SBrooks Davis #define LUA_MAXINTEGER		LLONG_MAX
577564b9ff2SBrooks Davis #define LUA_MININTEGER		LLONG_MIN
578564b9ff2SBrooks Davis 
579564b9ff2SBrooks Davis #elif defined(LUA_USE_WINDOWS) /* }{ */
580564b9ff2SBrooks Davis /* in Windows, can use specific Windows types */
581564b9ff2SBrooks Davis 
582564b9ff2SBrooks Davis #define LUA_INTEGER		__int64
583564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	"I64"
584564b9ff2SBrooks Davis 
585564b9ff2SBrooks Davis #define LUA_MAXINTEGER		_I64_MAX
586564b9ff2SBrooks Davis #define LUA_MININTEGER		_I64_MIN
587564b9ff2SBrooks Davis 
588564b9ff2SBrooks Davis #else				/* }{ */
589564b9ff2SBrooks Davis 
590564b9ff2SBrooks Davis #error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \
591564b9ff2SBrooks Davis   or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)"
592564b9ff2SBrooks Davis 
593564b9ff2SBrooks Davis #endif				/* } */
594564b9ff2SBrooks Davis 
595564b9ff2SBrooks Davis #else				/* }{ */
596564b9ff2SBrooks Davis 
597564b9ff2SBrooks Davis #error "numeric integer type not defined"
598564b9ff2SBrooks Davis 
599564b9ff2SBrooks Davis #endif				/* } */
600564b9ff2SBrooks Davis 
601564b9ff2SBrooks Davis /* }================================================================== */
602564b9ff2SBrooks Davis 
603564b9ff2SBrooks Davis 
604564b9ff2SBrooks Davis /*
605564b9ff2SBrooks Davis ** {==================================================================
606564b9ff2SBrooks Davis ** Dependencies with C99 and other C details
607564b9ff2SBrooks Davis ** ===================================================================
608564b9ff2SBrooks Davis */
609564b9ff2SBrooks Davis 
610564b9ff2SBrooks Davis /*
611564b9ff2SBrooks Davis @@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89.
612564b9ff2SBrooks Davis ** (All uses in Lua have only one format item.)
613564b9ff2SBrooks Davis */
614564b9ff2SBrooks Davis #if !defined(LUA_USE_C89)
615564b9ff2SBrooks Davis #define l_sprintf(s,sz,f,i)	snprintf(s,sz,f,i)
616564b9ff2SBrooks Davis #else
617564b9ff2SBrooks Davis #define l_sprintf(s,sz,f,i)	((void)(sz), sprintf(s,f,i))
618564b9ff2SBrooks Davis #endif
619564b9ff2SBrooks Davis 
620564b9ff2SBrooks Davis 
621564b9ff2SBrooks Davis /*
622564b9ff2SBrooks Davis @@ lua_strx2number converts an hexadecimal numeric string to a number.
623564b9ff2SBrooks Davis ** In C99, 'strtod' does that conversion. Otherwise, you can
624564b9ff2SBrooks Davis ** leave 'lua_strx2number' undefined and Lua will provide its own
625564b9ff2SBrooks Davis ** implementation.
626564b9ff2SBrooks Davis */
627564b9ff2SBrooks Davis #if !defined(LUA_USE_C89)
628564b9ff2SBrooks Davis #define lua_strx2number(s,p)		lua_str2number(s,p)
629564b9ff2SBrooks Davis #endif
630564b9ff2SBrooks Davis 
631564b9ff2SBrooks Davis 
632564b9ff2SBrooks Davis /*
633564b9ff2SBrooks Davis @@ lua_pointer2str converts a pointer to a readable string in a
634564b9ff2SBrooks Davis ** non-specified way.
635564b9ff2SBrooks Davis */
636564b9ff2SBrooks Davis #define lua_pointer2str(buff,sz,p)	l_sprintf(buff,sz,"%p",p)
637564b9ff2SBrooks Davis 
638564b9ff2SBrooks Davis 
639564b9ff2SBrooks Davis /*
640564b9ff2SBrooks Davis @@ lua_number2strx converts a float to an hexadecimal numeric string.
641564b9ff2SBrooks Davis ** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that.
642564b9ff2SBrooks Davis ** Otherwise, you can leave 'lua_number2strx' undefined and Lua will
643564b9ff2SBrooks Davis ** provide its own implementation.
644564b9ff2SBrooks Davis */
645564b9ff2SBrooks Davis #if !defined(LUA_USE_C89)
646564b9ff2SBrooks Davis #define lua_number2strx(L,b,sz,f,n)  \
647564b9ff2SBrooks Davis 	((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n)))
648564b9ff2SBrooks Davis #endif
649564b9ff2SBrooks Davis 
650564b9ff2SBrooks Davis 
651564b9ff2SBrooks Davis /*
652564b9ff2SBrooks Davis ** 'strtof' and 'opf' variants for math functions are not valid in
653564b9ff2SBrooks Davis ** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the
654564b9ff2SBrooks Davis ** availability of these variants. ('math.h' is already included in
655564b9ff2SBrooks Davis ** all files that use these macros.)
656564b9ff2SBrooks Davis */
657564b9ff2SBrooks Davis #if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF))
658564b9ff2SBrooks Davis #undef l_mathop  /* variants not available */
659564b9ff2SBrooks Davis #undef lua_str2number
660564b9ff2SBrooks Davis #define l_mathop(op)		(lua_Number)op  /* no variant */
661564b9ff2SBrooks Davis #define lua_str2number(s,p)	((lua_Number)strtod((s), (p)))
662564b9ff2SBrooks Davis #endif
663564b9ff2SBrooks Davis 
664564b9ff2SBrooks Davis 
665564b9ff2SBrooks Davis /*
666564b9ff2SBrooks Davis @@ LUA_KCONTEXT is the type of the context ('ctx') for continuation
667564b9ff2SBrooks Davis ** functions.  It must be a numerical type; Lua will use 'intptr_t' if
668564b9ff2SBrooks Davis ** available, otherwise it will use 'ptrdiff_t' (the nearest thing to
669564b9ff2SBrooks Davis ** 'intptr_t' in C89)
670564b9ff2SBrooks Davis */
671564b9ff2SBrooks Davis #define LUA_KCONTEXT	ptrdiff_t
672564b9ff2SBrooks Davis 
673564b9ff2SBrooks Davis #if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \
674564b9ff2SBrooks Davis     __STDC_VERSION__ >= 199901L
675564b9ff2SBrooks Davis #include <stdint.h>
676564b9ff2SBrooks Davis #if defined(INTPTR_MAX)  /* even in C99 this type is optional */
677564b9ff2SBrooks Davis #undef LUA_KCONTEXT
678564b9ff2SBrooks Davis #define LUA_KCONTEXT	intptr_t
679564b9ff2SBrooks Davis #endif
680564b9ff2SBrooks Davis #endif
681564b9ff2SBrooks Davis 
682564b9ff2SBrooks Davis 
683564b9ff2SBrooks Davis /*
684564b9ff2SBrooks Davis @@ lua_getlocaledecpoint gets the locale "radix character" (decimal point).
685564b9ff2SBrooks Davis ** Change that if you do not want to use C locales. (Code using this
686564b9ff2SBrooks Davis ** macro must include header 'locale.h'.)
687564b9ff2SBrooks Davis */
688564b9ff2SBrooks Davis #if !defined(lua_getlocaledecpoint)
689564b9ff2SBrooks Davis #define lua_getlocaledecpoint()		(localeconv()->decimal_point[0])
690564b9ff2SBrooks Davis #endif
691564b9ff2SBrooks Davis 
692564b9ff2SBrooks Davis /* }================================================================== */
693564b9ff2SBrooks Davis 
694564b9ff2SBrooks Davis 
695564b9ff2SBrooks Davis /*
696564b9ff2SBrooks Davis ** {==================================================================
697564b9ff2SBrooks Davis ** Language Variations
698564b9ff2SBrooks Davis ** =====================================================================
699564b9ff2SBrooks Davis */
700564b9ff2SBrooks Davis 
701564b9ff2SBrooks Davis /*
702564b9ff2SBrooks Davis @@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some
703564b9ff2SBrooks Davis ** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from
704564b9ff2SBrooks Davis ** numbers to strings. Define LUA_NOCVTS2N to turn off automatic
705564b9ff2SBrooks Davis ** coercion from strings to numbers.
706564b9ff2SBrooks Davis */
707564b9ff2SBrooks Davis /* #define LUA_NOCVTN2S */
708564b9ff2SBrooks Davis /* #define LUA_NOCVTS2N */
709564b9ff2SBrooks Davis 
710564b9ff2SBrooks Davis 
711564b9ff2SBrooks Davis /*
712564b9ff2SBrooks Davis @@ LUA_USE_APICHECK turns on several consistency checks on the C API.
713564b9ff2SBrooks Davis ** Define it as a help when debugging C code.
714564b9ff2SBrooks Davis */
715564b9ff2SBrooks Davis #if defined(LUA_USE_APICHECK)
716564b9ff2SBrooks Davis #include <assert.h>
717564b9ff2SBrooks Davis #define luai_apicheck(l,e)	assert(e)
718564b9ff2SBrooks Davis #endif
719564b9ff2SBrooks Davis 
720564b9ff2SBrooks Davis /* }================================================================== */
721564b9ff2SBrooks Davis 
722564b9ff2SBrooks Davis 
723564b9ff2SBrooks Davis /*
724564b9ff2SBrooks Davis ** {==================================================================
725564b9ff2SBrooks Davis ** Macros that affect the API and must be stable (that is, must be the
726564b9ff2SBrooks Davis ** same when you compile Lua and when you compile code that links to
727564b9ff2SBrooks Davis ** Lua). You probably do not want/need to change them.
728564b9ff2SBrooks Davis ** =====================================================================
729564b9ff2SBrooks Davis */
730564b9ff2SBrooks Davis 
731564b9ff2SBrooks Davis /*
732564b9ff2SBrooks Davis @@ LUAI_MAXSTACK limits the size of the Lua stack.
733564b9ff2SBrooks Davis ** CHANGE it if you need a different limit. This limit is arbitrary;
734564b9ff2SBrooks Davis ** its only purpose is to stop Lua from consuming unlimited stack
735564b9ff2SBrooks Davis ** space (and to reserve some numbers for pseudo-indices).
736564b9ff2SBrooks Davis */
737564b9ff2SBrooks Davis #if LUAI_BITSINT >= 32
738564b9ff2SBrooks Davis #define LUAI_MAXSTACK		1000000
739564b9ff2SBrooks Davis #else
740564b9ff2SBrooks Davis #define LUAI_MAXSTACK		15000
741564b9ff2SBrooks Davis #endif
742564b9ff2SBrooks Davis 
743564b9ff2SBrooks Davis 
744564b9ff2SBrooks Davis /*
745564b9ff2SBrooks Davis @@ LUA_EXTRASPACE defines the size of a raw memory area associated with
746564b9ff2SBrooks Davis ** a Lua state with very fast access.
747564b9ff2SBrooks Davis ** CHANGE it if you need a different size.
748564b9ff2SBrooks Davis */
749564b9ff2SBrooks Davis #define LUA_EXTRASPACE		(sizeof(void *))
750564b9ff2SBrooks Davis 
751564b9ff2SBrooks Davis 
752564b9ff2SBrooks Davis /*
753564b9ff2SBrooks Davis @@ LUA_IDSIZE gives the maximum size for the description of the source
754564b9ff2SBrooks Davis @@ of a function in debug information.
755564b9ff2SBrooks Davis ** CHANGE it if you want a different size.
756564b9ff2SBrooks Davis */
757564b9ff2SBrooks Davis #define LUA_IDSIZE	60
758564b9ff2SBrooks Davis 
759564b9ff2SBrooks Davis 
760564b9ff2SBrooks Davis /*
761564b9ff2SBrooks Davis @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
762564b9ff2SBrooks Davis ** CHANGE it if it uses too much C-stack space. (For long double,
763564b9ff2SBrooks Davis ** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a
764564b9ff2SBrooks Davis ** smaller buffer would force a memory allocation for each call to
765564b9ff2SBrooks Davis ** 'string.format'.)
766564b9ff2SBrooks Davis */
767564b9ff2SBrooks Davis #if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE
768564b9ff2SBrooks Davis #define LUAL_BUFFERSIZE		8192
769564b9ff2SBrooks Davis #else
770564b9ff2SBrooks Davis #define LUAL_BUFFERSIZE   ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer)))
771564b9ff2SBrooks Davis #endif
772564b9ff2SBrooks Davis 
773564b9ff2SBrooks Davis /* }================================================================== */
774564b9ff2SBrooks Davis 
775564b9ff2SBrooks Davis 
776564b9ff2SBrooks Davis /*
777564b9ff2SBrooks Davis @@ LUA_QL describes how error messages quote program elements.
778564b9ff2SBrooks Davis ** Lua does not use these macros anymore; they are here for
779564b9ff2SBrooks Davis ** compatibility only.
780564b9ff2SBrooks Davis */
781564b9ff2SBrooks Davis #define LUA_QL(x)	"'" x "'"
782564b9ff2SBrooks Davis #define LUA_QS		LUA_QL("%s")
783564b9ff2SBrooks Davis 
784564b9ff2SBrooks Davis 
785564b9ff2SBrooks Davis 
786564b9ff2SBrooks Davis 
787564b9ff2SBrooks Davis /* =================================================================== */
788564b9ff2SBrooks Davis 
789564b9ff2SBrooks Davis /*
790564b9ff2SBrooks Davis ** Local configuration. You can use this space to add your redefinitions
791564b9ff2SBrooks Davis ** without modifying the main part of the file.
792564b9ff2SBrooks Davis */
793564b9ff2SBrooks Davis 
794564b9ff2SBrooks Davis 
795564b9ff2SBrooks Davis 
796564b9ff2SBrooks Davis 
797564b9ff2SBrooks Davis 
798564b9ff2SBrooks Davis #endif
799564b9ff2SBrooks Davis 
800