xref: /freebsd/lib/liblua/luaconf.h (revision c2a2b4f3cf11e770892a524df637f671f5989719)
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
78*c2a2b4f3SKyle Evans #ifndef BOOTSTRAPPING
793bd84195SEd Maste #define LUA_USE_DLOPEN
80564b9ff2SBrooks Davis #endif
81*c2a2b4f3SKyle Evans #endif
82564b9ff2SBrooks Davis 
83564b9ff2SBrooks Davis /*
84564b9ff2SBrooks Davis @@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for
85564b9ff2SBrooks Davis ** C89 ('long' and 'double'); Windows always has '__int64', so it does
86564b9ff2SBrooks Davis ** not need to use this case.
87564b9ff2SBrooks Davis */
88564b9ff2SBrooks Davis #if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS)
89564b9ff2SBrooks Davis #define LUA_C89_NUMBERS
90564b9ff2SBrooks Davis #endif
91564b9ff2SBrooks Davis 
92564b9ff2SBrooks Davis 
93564b9ff2SBrooks Davis 
94564b9ff2SBrooks Davis /*
95564b9ff2SBrooks Davis @@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'.
96564b9ff2SBrooks Davis */
97564b9ff2SBrooks Davis /* avoid undefined shifts */
98564b9ff2SBrooks Davis #if ((INT_MAX >> 15) >> 15) >= 1
99564b9ff2SBrooks Davis #define LUAI_BITSINT	32
100564b9ff2SBrooks Davis #else
101564b9ff2SBrooks Davis /* 'int' always must have at least 16 bits */
102564b9ff2SBrooks Davis #define LUAI_BITSINT	16
103564b9ff2SBrooks Davis #endif
104564b9ff2SBrooks Davis 
105564b9ff2SBrooks Davis 
106564b9ff2SBrooks Davis /*
107564b9ff2SBrooks Davis @@ LUA_INT_TYPE defines the type for Lua integers.
108564b9ff2SBrooks Davis @@ LUA_FLOAT_TYPE defines the type for Lua floats.
109564b9ff2SBrooks Davis ** Lua should work fine with any mix of these options (if supported
110564b9ff2SBrooks Davis ** by your C compiler). The usual configurations are 64-bit integers
111564b9ff2SBrooks Davis ** and 'double' (the default), 32-bit integers and 'float' (for
112564b9ff2SBrooks Davis ** restricted platforms), and 'long'/'double' (for C compilers not
113564b9ff2SBrooks Davis ** compliant with C99, which may not have support for 'long long').
114564b9ff2SBrooks Davis */
115564b9ff2SBrooks Davis 
116564b9ff2SBrooks Davis /* predefined options for LUA_INT_TYPE */
117564b9ff2SBrooks Davis #define LUA_INT_INT		1
118564b9ff2SBrooks Davis #define LUA_INT_LONG		2
119564b9ff2SBrooks Davis #define LUA_INT_LONGLONG	3
120564b9ff2SBrooks Davis 
121564b9ff2SBrooks Davis /* predefined options for LUA_FLOAT_TYPE */
122564b9ff2SBrooks Davis #define LUA_FLOAT_FLOAT		1
123564b9ff2SBrooks Davis #define LUA_FLOAT_DOUBLE	2
124564b9ff2SBrooks Davis #define LUA_FLOAT_LONGDOUBLE	3
125564b9ff2SBrooks Davis 
126564b9ff2SBrooks Davis #if defined(LUA_32BITS)		/* { */
127564b9ff2SBrooks Davis /*
128564b9ff2SBrooks Davis ** 32-bit integers and 'float'
129564b9ff2SBrooks Davis */
130564b9ff2SBrooks Davis #if LUAI_BITSINT >= 32  /* use 'int' if big enough */
131564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_INT
132564b9ff2SBrooks Davis #else  /* otherwise use 'long' */
133564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_LONG
134564b9ff2SBrooks Davis #endif
135564b9ff2SBrooks Davis #define LUA_FLOAT_TYPE	LUA_FLOAT_FLOAT
136564b9ff2SBrooks Davis 
137564b9ff2SBrooks Davis #elif defined(LUA_C89_NUMBERS)	/* }{ */
138564b9ff2SBrooks Davis /*
139564b9ff2SBrooks Davis ** largest types available for C89 ('long' and 'double')
140564b9ff2SBrooks Davis */
141564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_LONG
142564b9ff2SBrooks Davis #define LUA_FLOAT_TYPE	LUA_FLOAT_DOUBLE
143564b9ff2SBrooks Davis 
144564b9ff2SBrooks Davis #endif				/* } */
145564b9ff2SBrooks Davis 
146564b9ff2SBrooks Davis 
147564b9ff2SBrooks Davis /*
148564b9ff2SBrooks Davis ** default configuration for 64-bit Lua ('long long' and 'double')
149564b9ff2SBrooks Davis */
150564b9ff2SBrooks Davis #if !defined(LUA_INT_TYPE)
151564b9ff2SBrooks Davis #define LUA_INT_TYPE	LUA_INT_LONGLONG
152564b9ff2SBrooks Davis #endif
153564b9ff2SBrooks Davis 
154564b9ff2SBrooks Davis #if !defined(LUA_FLOAT_TYPE)
155564b9ff2SBrooks Davis #define LUA_FLOAT_TYPE	LUA_FLOAT_DOUBLE
156564b9ff2SBrooks Davis #endif
157564b9ff2SBrooks Davis 
158564b9ff2SBrooks Davis /* }================================================================== */
159564b9ff2SBrooks Davis 
160564b9ff2SBrooks Davis 
161564b9ff2SBrooks Davis 
162564b9ff2SBrooks Davis 
163564b9ff2SBrooks Davis /*
164564b9ff2SBrooks Davis ** {==================================================================
165564b9ff2SBrooks Davis ** Configuration for Paths.
166564b9ff2SBrooks Davis ** ===================================================================
167564b9ff2SBrooks Davis */
168564b9ff2SBrooks Davis 
169564b9ff2SBrooks Davis /*
170564b9ff2SBrooks Davis ** LUA_PATH_SEP is the character that separates templates in a path.
171564b9ff2SBrooks Davis ** LUA_PATH_MARK is the string that marks the substitution points in a
172564b9ff2SBrooks Davis ** template.
173564b9ff2SBrooks Davis ** LUA_EXEC_DIR in a Windows path is replaced by the executable's
174564b9ff2SBrooks Davis ** directory.
175564b9ff2SBrooks Davis */
176564b9ff2SBrooks Davis #define LUA_PATH_SEP            ";"
177564b9ff2SBrooks Davis #define LUA_PATH_MARK           "?"
178564b9ff2SBrooks Davis #define LUA_EXEC_DIR            "!"
179564b9ff2SBrooks Davis 
180564b9ff2SBrooks Davis 
181564b9ff2SBrooks Davis /*
182564b9ff2SBrooks Davis @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
183564b9ff2SBrooks Davis ** Lua libraries.
184564b9ff2SBrooks Davis @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
185564b9ff2SBrooks Davis ** C libraries.
186564b9ff2SBrooks Davis ** CHANGE them if your machine has a non-conventional directory
187564b9ff2SBrooks Davis ** hierarchy or if you want to install your libraries in
188564b9ff2SBrooks Davis ** non-conventional directories.
189564b9ff2SBrooks Davis */
190564b9ff2SBrooks Davis #define LUA_VDIR	LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
191564b9ff2SBrooks Davis #if defined(_WIN32)	/* { */
192564b9ff2SBrooks Davis /*
193564b9ff2SBrooks Davis ** In Windows, any exclamation mark ('!') in the path is replaced by the
194564b9ff2SBrooks Davis ** path of the directory of the executable file of the current process.
195564b9ff2SBrooks Davis */
196564b9ff2SBrooks Davis #define LUA_LDIR	"!\\lua\\"
197564b9ff2SBrooks Davis #define LUA_CDIR	"!\\"
198564b9ff2SBrooks Davis #define LUA_SHRDIR	"!\\..\\share\\lua\\" LUA_VDIR "\\"
199564b9ff2SBrooks Davis #define LUA_PATH_DEFAULT  \
200564b9ff2SBrooks Davis 		LUA_LDIR"?.lua;"  LUA_LDIR"?\\init.lua;" \
201564b9ff2SBrooks Davis 		LUA_CDIR"?.lua;"  LUA_CDIR"?\\init.lua;" \
202564b9ff2SBrooks Davis 		LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \
203564b9ff2SBrooks Davis 		".\\?.lua;" ".\\?\\init.lua"
204564b9ff2SBrooks Davis #define LUA_CPATH_DEFAULT \
205564b9ff2SBrooks Davis 		LUA_CDIR"?.dll;" \
206564b9ff2SBrooks Davis 		LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \
207564b9ff2SBrooks Davis 		LUA_CDIR"loadall.dll;" ".\\?.dll"
208564b9ff2SBrooks Davis 
209564b9ff2SBrooks Davis #else			/* }{ */
210564b9ff2SBrooks Davis 
211bceabe27SEd Maste #define LUA_ROOT	"/usr/"
212bceabe27SEd Maste #define LUA_LDIR	LUA_ROOT "share/flua/"
213bceabe27SEd Maste #define LUA_CDIR	LUA_ROOT "lib/flua/"
214be99f886SEd Maste #if !defined(LUA_PATH_DEFAULT)
215564b9ff2SBrooks Davis #define LUA_PATH_DEFAULT  \
216564b9ff2SBrooks Davis 		LUA_LDIR"?.lua;"  LUA_LDIR"?/init.lua;" \
217564b9ff2SBrooks Davis 		LUA_CDIR"?.lua;"  LUA_CDIR"?/init.lua;" \
218564b9ff2SBrooks Davis 		"./?.lua;" "./?/init.lua"
219be99f886SEd Maste #endif
220be99f886SEd Maste #if !defined(LUA_CPATH_DEFAULT)
221564b9ff2SBrooks Davis #define LUA_CPATH_DEFAULT \
222564b9ff2SBrooks Davis 		LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so"
223be99f886SEd Maste #endif
224564b9ff2SBrooks Davis #endif			/* } */
225564b9ff2SBrooks Davis 
226564b9ff2SBrooks Davis 
227564b9ff2SBrooks Davis /*
228564b9ff2SBrooks Davis @@ LUA_DIRSEP is the directory separator (for submodules).
229564b9ff2SBrooks Davis ** CHANGE it if your machine does not use "/" as the directory separator
230564b9ff2SBrooks Davis ** and is not Windows. (On Windows Lua automatically uses "\".)
231564b9ff2SBrooks Davis */
232564b9ff2SBrooks Davis #if defined(_WIN32)
233564b9ff2SBrooks Davis #define LUA_DIRSEP	"\\"
234564b9ff2SBrooks Davis #else
235564b9ff2SBrooks Davis #define LUA_DIRSEP	"/"
236564b9ff2SBrooks Davis #endif
237564b9ff2SBrooks Davis 
238564b9ff2SBrooks Davis /* }================================================================== */
239564b9ff2SBrooks Davis 
240564b9ff2SBrooks Davis 
241564b9ff2SBrooks Davis /*
242564b9ff2SBrooks Davis ** {==================================================================
243564b9ff2SBrooks Davis ** Marks for exported symbols in the C code
244564b9ff2SBrooks Davis ** ===================================================================
245564b9ff2SBrooks Davis */
246564b9ff2SBrooks Davis 
247564b9ff2SBrooks Davis /*
248564b9ff2SBrooks Davis @@ LUA_API is a mark for all core API functions.
249564b9ff2SBrooks Davis @@ LUALIB_API is a mark for all auxiliary library functions.
250564b9ff2SBrooks Davis @@ LUAMOD_API is a mark for all standard library opening functions.
251564b9ff2SBrooks Davis ** CHANGE them if you need to define those functions in some special way.
252564b9ff2SBrooks Davis ** For instance, if you want to create one Windows DLL with the core and
253564b9ff2SBrooks Davis ** the libraries, you may want to use the following definition (define
254564b9ff2SBrooks Davis ** LUA_BUILD_AS_DLL to get it).
255564b9ff2SBrooks Davis */
256564b9ff2SBrooks Davis #if defined(LUA_BUILD_AS_DLL)	/* { */
257564b9ff2SBrooks Davis 
258564b9ff2SBrooks Davis #if defined(LUA_CORE) || defined(LUA_LIB)	/* { */
259564b9ff2SBrooks Davis #define LUA_API __declspec(dllexport)
260564b9ff2SBrooks Davis #else						/* }{ */
261564b9ff2SBrooks Davis #define LUA_API __declspec(dllimport)
262564b9ff2SBrooks Davis #endif						/* } */
263564b9ff2SBrooks Davis 
264564b9ff2SBrooks Davis #else				/* }{ */
265564b9ff2SBrooks Davis 
266564b9ff2SBrooks Davis #define LUA_API		extern
267564b9ff2SBrooks Davis 
268564b9ff2SBrooks Davis #endif				/* } */
269564b9ff2SBrooks Davis 
270564b9ff2SBrooks Davis 
271564b9ff2SBrooks Davis /* more often than not the libs go together with the core */
272564b9ff2SBrooks Davis #define LUALIB_API	LUA_API
273564b9ff2SBrooks Davis #define LUAMOD_API	LUALIB_API
274564b9ff2SBrooks Davis 
275564b9ff2SBrooks Davis 
276564b9ff2SBrooks Davis /*
277564b9ff2SBrooks Davis @@ LUAI_FUNC is a mark for all extern functions that are not to be
278564b9ff2SBrooks Davis ** exported to outside modules.
279564b9ff2SBrooks Davis @@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
280564b9ff2SBrooks Davis ** that are not to be exported to outside modules (LUAI_DDEF for
281564b9ff2SBrooks Davis ** definitions and LUAI_DDEC for declarations).
282564b9ff2SBrooks Davis ** CHANGE them if you need to mark them in some special way. Elf/gcc
283564b9ff2SBrooks Davis ** (versions 3.2 and later) mark them as "hidden" to optimize access
284564b9ff2SBrooks Davis ** when Lua is compiled as a shared library. Not all elf targets support
285564b9ff2SBrooks Davis ** this attribute. Unfortunately, gcc does not offer a way to check
286564b9ff2SBrooks Davis ** whether the target offers that support, and those without support
287564b9ff2SBrooks Davis ** give a warning about it. To avoid these warnings, change to the
288564b9ff2SBrooks Davis ** default definition.
289564b9ff2SBrooks Davis */
290564b9ff2SBrooks Davis #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
291564b9ff2SBrooks Davis     defined(__ELF__)		/* { */
292564b9ff2SBrooks Davis #define LUAI_FUNC	__attribute__((visibility("hidden"))) extern
293564b9ff2SBrooks Davis #else				/* }{ */
294564b9ff2SBrooks Davis #define LUAI_FUNC	extern
295564b9ff2SBrooks Davis #endif				/* } */
296564b9ff2SBrooks Davis 
297564b9ff2SBrooks Davis #define LUAI_DDEC	LUAI_FUNC
298564b9ff2SBrooks Davis #define LUAI_DDEF	/* empty */
299564b9ff2SBrooks Davis 
300564b9ff2SBrooks Davis /* }================================================================== */
301564b9ff2SBrooks Davis 
302564b9ff2SBrooks Davis 
303564b9ff2SBrooks Davis /*
304564b9ff2SBrooks Davis ** {==================================================================
305564b9ff2SBrooks Davis ** Compatibility with previous versions
306564b9ff2SBrooks Davis ** ===================================================================
307564b9ff2SBrooks Davis */
308564b9ff2SBrooks Davis 
309564b9ff2SBrooks Davis /*
310564b9ff2SBrooks Davis @@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2.
311564b9ff2SBrooks Davis @@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1.
312564b9ff2SBrooks Davis ** You can define it to get all options, or change specific options
313564b9ff2SBrooks Davis ** to fit your specific needs.
314564b9ff2SBrooks Davis */
315564b9ff2SBrooks Davis #if defined(LUA_COMPAT_5_2)	/* { */
316564b9ff2SBrooks Davis 
317564b9ff2SBrooks Davis /*
318564b9ff2SBrooks Davis @@ LUA_COMPAT_MATHLIB controls the presence of several deprecated
319564b9ff2SBrooks Davis ** functions in the mathematical library.
320564b9ff2SBrooks Davis */
321564b9ff2SBrooks Davis #define LUA_COMPAT_MATHLIB
322564b9ff2SBrooks Davis 
323564b9ff2SBrooks Davis /*
324564b9ff2SBrooks Davis @@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'.
325564b9ff2SBrooks Davis */
326564b9ff2SBrooks Davis #define LUA_COMPAT_BITLIB
327564b9ff2SBrooks Davis 
328564b9ff2SBrooks Davis /*
329564b9ff2SBrooks Davis @@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod.
330564b9ff2SBrooks Davis */
331564b9ff2SBrooks Davis #define LUA_COMPAT_IPAIRS
332564b9ff2SBrooks Davis 
333564b9ff2SBrooks Davis /*
334564b9ff2SBrooks Davis @@ LUA_COMPAT_APIINTCASTS controls the presence of macros for
335564b9ff2SBrooks Davis ** manipulating other integer types (lua_pushunsigned, lua_tounsigned,
336564b9ff2SBrooks Davis ** luaL_checkint, luaL_checklong, etc.)
337564b9ff2SBrooks Davis */
338564b9ff2SBrooks Davis #define LUA_COMPAT_APIINTCASTS
339564b9ff2SBrooks Davis 
340564b9ff2SBrooks Davis #endif				/* } */
341564b9ff2SBrooks Davis 
342564b9ff2SBrooks Davis 
343564b9ff2SBrooks Davis #if defined(LUA_COMPAT_5_1)	/* { */
344564b9ff2SBrooks Davis 
345564b9ff2SBrooks Davis /* Incompatibilities from 5.2 -> 5.3 */
346564b9ff2SBrooks Davis #define LUA_COMPAT_MATHLIB
347564b9ff2SBrooks Davis #define LUA_COMPAT_APIINTCASTS
348564b9ff2SBrooks Davis 
349564b9ff2SBrooks Davis /*
350564b9ff2SBrooks Davis @@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
351564b9ff2SBrooks Davis ** You can replace it with 'table.unpack'.
352564b9ff2SBrooks Davis */
353564b9ff2SBrooks Davis #define LUA_COMPAT_UNPACK
354564b9ff2SBrooks Davis 
355564b9ff2SBrooks Davis /*
356564b9ff2SBrooks Davis @@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
357564b9ff2SBrooks Davis ** You can replace it with 'package.searchers'.
358564b9ff2SBrooks Davis */
359564b9ff2SBrooks Davis #define LUA_COMPAT_LOADERS
360564b9ff2SBrooks Davis 
361564b9ff2SBrooks Davis /*
362564b9ff2SBrooks Davis @@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
363564b9ff2SBrooks Davis ** You can call your C function directly (with light C functions).
364564b9ff2SBrooks Davis */
365564b9ff2SBrooks Davis #define lua_cpcall(L,f,u)  \
366564b9ff2SBrooks Davis 	(lua_pushcfunction(L, (f)), \
367564b9ff2SBrooks Davis 	 lua_pushlightuserdata(L,(u)), \
368564b9ff2SBrooks Davis 	 lua_pcall(L,1,0,0))
369564b9ff2SBrooks Davis 
370564b9ff2SBrooks Davis 
371564b9ff2SBrooks Davis /*
372564b9ff2SBrooks Davis @@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
373564b9ff2SBrooks Davis ** You can rewrite 'log10(x)' as 'log(x, 10)'.
374564b9ff2SBrooks Davis */
375564b9ff2SBrooks Davis #define LUA_COMPAT_LOG10
376564b9ff2SBrooks Davis 
377564b9ff2SBrooks Davis /*
378564b9ff2SBrooks Davis @@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
379564b9ff2SBrooks Davis ** library. You can rewrite 'loadstring(s)' as 'load(s)'.
380564b9ff2SBrooks Davis */
381564b9ff2SBrooks Davis #define LUA_COMPAT_LOADSTRING
382564b9ff2SBrooks Davis 
383564b9ff2SBrooks Davis /*
384564b9ff2SBrooks Davis @@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
385564b9ff2SBrooks Davis */
386564b9ff2SBrooks Davis #define LUA_COMPAT_MAXN
387564b9ff2SBrooks Davis 
388564b9ff2SBrooks Davis /*
389564b9ff2SBrooks Davis @@ The following macros supply trivial compatibility for some
390564b9ff2SBrooks Davis ** changes in the API. The macros themselves document how to
391564b9ff2SBrooks Davis ** change your code to avoid using them.
392564b9ff2SBrooks Davis */
393564b9ff2SBrooks Davis #define lua_strlen(L,i)		lua_rawlen(L, (i))
394564b9ff2SBrooks Davis 
395564b9ff2SBrooks Davis #define lua_objlen(L,i)		lua_rawlen(L, (i))
396564b9ff2SBrooks Davis 
397564b9ff2SBrooks Davis #define lua_equal(L,idx1,idx2)		lua_compare(L,(idx1),(idx2),LUA_OPEQ)
398564b9ff2SBrooks Davis #define lua_lessthan(L,idx1,idx2)	lua_compare(L,(idx1),(idx2),LUA_OPLT)
399564b9ff2SBrooks Davis 
400564b9ff2SBrooks Davis /*
401564b9ff2SBrooks Davis @@ LUA_COMPAT_MODULE controls compatibility with previous
402564b9ff2SBrooks Davis ** module functions 'module' (Lua) and 'luaL_register' (C).
403564b9ff2SBrooks Davis */
404564b9ff2SBrooks Davis #define LUA_COMPAT_MODULE
405564b9ff2SBrooks Davis 
406564b9ff2SBrooks Davis #endif				/* } */
407564b9ff2SBrooks Davis 
408564b9ff2SBrooks Davis 
409564b9ff2SBrooks Davis /*
410564b9ff2SBrooks Davis @@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a
411564b9ff2SBrooks Davis @@ a float mark ('.0').
412564b9ff2SBrooks Davis ** This macro is not on by default even in compatibility mode,
413564b9ff2SBrooks Davis ** because this is not really an incompatibility.
414564b9ff2SBrooks Davis */
415564b9ff2SBrooks Davis /* #define LUA_COMPAT_FLOATSTRING */
416564b9ff2SBrooks Davis 
417564b9ff2SBrooks Davis /* }================================================================== */
418564b9ff2SBrooks Davis 
419564b9ff2SBrooks Davis 
420564b9ff2SBrooks Davis 
421564b9ff2SBrooks Davis /*
422564b9ff2SBrooks Davis ** {==================================================================
423564b9ff2SBrooks Davis ** Configuration for Numbers.
424564b9ff2SBrooks Davis ** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_*
425564b9ff2SBrooks Davis ** satisfy your needs.
426564b9ff2SBrooks Davis ** ===================================================================
427564b9ff2SBrooks Davis */
428564b9ff2SBrooks Davis 
429564b9ff2SBrooks Davis /*
430564b9ff2SBrooks Davis @@ LUA_NUMBER is the floating-point type used by Lua.
431564b9ff2SBrooks Davis @@ LUAI_UACNUMBER is the result of a 'default argument promotion'
432564b9ff2SBrooks Davis @@ over a floating number.
433564b9ff2SBrooks Davis @@ l_mathlim(x) corrects limit name 'x' to the proper float type
434564b9ff2SBrooks Davis ** by prefixing it with one of FLT/DBL/LDBL.
435564b9ff2SBrooks Davis @@ LUA_NUMBER_FRMLEN is the length modifier for writing floats.
436564b9ff2SBrooks Davis @@ LUA_NUMBER_FMT is the format for writing floats.
437564b9ff2SBrooks Davis @@ lua_number2str converts a float to a string.
438564b9ff2SBrooks Davis @@ l_mathop allows the addition of an 'l' or 'f' to all math operations.
439564b9ff2SBrooks Davis @@ l_floor takes the floor of a float.
440564b9ff2SBrooks Davis @@ lua_str2number converts a decimal numeric string to a number.
441564b9ff2SBrooks Davis */
442564b9ff2SBrooks Davis 
443564b9ff2SBrooks Davis 
444564b9ff2SBrooks Davis /* The following definitions are good for most cases here */
445564b9ff2SBrooks Davis 
446564b9ff2SBrooks Davis #define l_floor(x)		(l_mathop(floor)(x))
447564b9ff2SBrooks Davis 
448564b9ff2SBrooks Davis #define lua_number2str(s,sz,n)  \
449564b9ff2SBrooks Davis 	l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n))
450564b9ff2SBrooks Davis 
451564b9ff2SBrooks Davis /*
452564b9ff2SBrooks Davis @@ lua_numbertointeger converts a float number to an integer, or
453564b9ff2SBrooks Davis ** returns 0 if float is not within the range of a lua_Integer.
454564b9ff2SBrooks Davis ** (The range comparisons are tricky because of rounding. The tests
455564b9ff2SBrooks Davis ** here assume a two-complement representation, where MININTEGER always
456564b9ff2SBrooks Davis ** has an exact representation as a float; MAXINTEGER may not have one,
457564b9ff2SBrooks Davis ** and therefore its conversion to float may have an ill-defined value.)
458564b9ff2SBrooks Davis */
459564b9ff2SBrooks Davis #define lua_numbertointeger(n,p) \
460564b9ff2SBrooks Davis   ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \
461564b9ff2SBrooks Davis    (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \
462564b9ff2SBrooks Davis       (*(p) = (LUA_INTEGER)(n), 1))
463564b9ff2SBrooks Davis 
464564b9ff2SBrooks Davis 
465564b9ff2SBrooks Davis /* now the variable definitions */
466564b9ff2SBrooks Davis 
467564b9ff2SBrooks Davis #if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT		/* { single float */
468564b9ff2SBrooks Davis 
469564b9ff2SBrooks Davis #define LUA_NUMBER	float
470564b9ff2SBrooks Davis 
471564b9ff2SBrooks Davis #define l_mathlim(n)		(FLT_##n)
472564b9ff2SBrooks Davis 
473564b9ff2SBrooks Davis #define LUAI_UACNUMBER	double
474564b9ff2SBrooks Davis 
475564b9ff2SBrooks Davis #define LUA_NUMBER_FRMLEN	""
476564b9ff2SBrooks Davis #define LUA_NUMBER_FMT		"%.7g"
477564b9ff2SBrooks Davis 
478564b9ff2SBrooks Davis #define l_mathop(op)		op##f
479564b9ff2SBrooks Davis 
480564b9ff2SBrooks Davis #define lua_str2number(s,p)	strtof((s), (p))
481564b9ff2SBrooks Davis 
482564b9ff2SBrooks Davis 
483564b9ff2SBrooks Davis #elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE	/* }{ long double */
484564b9ff2SBrooks Davis 
485564b9ff2SBrooks Davis #define LUA_NUMBER	long double
486564b9ff2SBrooks Davis 
487564b9ff2SBrooks Davis #define l_mathlim(n)		(LDBL_##n)
488564b9ff2SBrooks Davis 
489564b9ff2SBrooks Davis #define LUAI_UACNUMBER	long double
490564b9ff2SBrooks Davis 
491564b9ff2SBrooks Davis #define LUA_NUMBER_FRMLEN	"L"
492564b9ff2SBrooks Davis #define LUA_NUMBER_FMT		"%.19Lg"
493564b9ff2SBrooks Davis 
494564b9ff2SBrooks Davis #define l_mathop(op)		op##l
495564b9ff2SBrooks Davis 
496564b9ff2SBrooks Davis #define lua_str2number(s,p)	strtold((s), (p))
497564b9ff2SBrooks Davis 
498564b9ff2SBrooks Davis #elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE	/* }{ double */
499564b9ff2SBrooks Davis 
500564b9ff2SBrooks Davis #define LUA_NUMBER	double
501564b9ff2SBrooks Davis 
502564b9ff2SBrooks Davis #define l_mathlim(n)		(DBL_##n)
503564b9ff2SBrooks Davis 
504564b9ff2SBrooks Davis #define LUAI_UACNUMBER	double
505564b9ff2SBrooks Davis 
506564b9ff2SBrooks Davis #define LUA_NUMBER_FRMLEN	""
507564b9ff2SBrooks Davis #define LUA_NUMBER_FMT		"%.14g"
508564b9ff2SBrooks Davis 
509564b9ff2SBrooks Davis #define l_mathop(op)		op
510564b9ff2SBrooks Davis 
511564b9ff2SBrooks Davis #define lua_str2number(s,p)	strtod((s), (p))
512564b9ff2SBrooks Davis 
513564b9ff2SBrooks Davis #else						/* }{ */
514564b9ff2SBrooks Davis 
515564b9ff2SBrooks Davis #error "numeric float type not defined"
516564b9ff2SBrooks Davis 
517564b9ff2SBrooks Davis #endif					/* } */
518564b9ff2SBrooks Davis 
519564b9ff2SBrooks Davis 
520564b9ff2SBrooks Davis 
521564b9ff2SBrooks Davis /*
522564b9ff2SBrooks Davis @@ LUA_INTEGER is the integer type used by Lua.
523564b9ff2SBrooks Davis **
524564b9ff2SBrooks Davis @@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER.
525564b9ff2SBrooks Davis **
526564b9ff2SBrooks Davis @@ LUAI_UACINT is the result of a 'default argument promotion'
527564b9ff2SBrooks Davis @@ over a lUA_INTEGER.
528564b9ff2SBrooks Davis @@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers.
529564b9ff2SBrooks Davis @@ LUA_INTEGER_FMT is the format for writing integers.
530564b9ff2SBrooks Davis @@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER.
531564b9ff2SBrooks Davis @@ LUA_MININTEGER is the minimum value for a LUA_INTEGER.
532564b9ff2SBrooks Davis @@ lua_integer2str converts an integer to a string.
533564b9ff2SBrooks Davis */
534564b9ff2SBrooks Davis 
535564b9ff2SBrooks Davis 
536564b9ff2SBrooks Davis /* The following definitions are good for most cases here */
537564b9ff2SBrooks Davis 
538564b9ff2SBrooks Davis #define LUA_INTEGER_FMT		"%" LUA_INTEGER_FRMLEN "d"
539564b9ff2SBrooks Davis 
540564b9ff2SBrooks Davis #define LUAI_UACINT		LUA_INTEGER
541564b9ff2SBrooks Davis 
542564b9ff2SBrooks Davis #define lua_integer2str(s,sz,n)  \
543564b9ff2SBrooks Davis 	l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n))
544564b9ff2SBrooks Davis 
545564b9ff2SBrooks Davis /*
546564b9ff2SBrooks Davis ** use LUAI_UACINT here to avoid problems with promotions (which
547564b9ff2SBrooks Davis ** can turn a comparison between unsigneds into a signed comparison)
548564b9ff2SBrooks Davis */
549564b9ff2SBrooks Davis #define LUA_UNSIGNED		unsigned LUAI_UACINT
550564b9ff2SBrooks Davis 
551564b9ff2SBrooks Davis 
552564b9ff2SBrooks Davis /* now the variable definitions */
553564b9ff2SBrooks Davis 
554564b9ff2SBrooks Davis #if LUA_INT_TYPE == LUA_INT_INT		/* { int */
555564b9ff2SBrooks Davis 
556564b9ff2SBrooks Davis #define LUA_INTEGER		int
557564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	""
558564b9ff2SBrooks Davis 
559564b9ff2SBrooks Davis #define LUA_MAXINTEGER		INT_MAX
560564b9ff2SBrooks Davis #define LUA_MININTEGER		INT_MIN
561564b9ff2SBrooks Davis 
562564b9ff2SBrooks Davis #elif LUA_INT_TYPE == LUA_INT_LONG	/* }{ long */
563564b9ff2SBrooks Davis 
564564b9ff2SBrooks Davis #define LUA_INTEGER		long
565564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	"l"
566564b9ff2SBrooks Davis 
567564b9ff2SBrooks Davis #define LUA_MAXINTEGER		LONG_MAX
568564b9ff2SBrooks Davis #define LUA_MININTEGER		LONG_MIN
569564b9ff2SBrooks Davis 
570564b9ff2SBrooks Davis #elif LUA_INT_TYPE == LUA_INT_LONGLONG	/* }{ long long */
571564b9ff2SBrooks Davis 
572564b9ff2SBrooks Davis /* use presence of macro LLONG_MAX as proxy for C99 compliance */
573564b9ff2SBrooks Davis #if defined(LLONG_MAX)		/* { */
574564b9ff2SBrooks Davis /* use ISO C99 stuff */
575564b9ff2SBrooks Davis 
576564b9ff2SBrooks Davis #define LUA_INTEGER		long long
577564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	"ll"
578564b9ff2SBrooks Davis 
579564b9ff2SBrooks Davis #define LUA_MAXINTEGER		LLONG_MAX
580564b9ff2SBrooks Davis #define LUA_MININTEGER		LLONG_MIN
581564b9ff2SBrooks Davis 
582564b9ff2SBrooks Davis #elif defined(LUA_USE_WINDOWS) /* }{ */
583564b9ff2SBrooks Davis /* in Windows, can use specific Windows types */
584564b9ff2SBrooks Davis 
585564b9ff2SBrooks Davis #define LUA_INTEGER		__int64
586564b9ff2SBrooks Davis #define LUA_INTEGER_FRMLEN	"I64"
587564b9ff2SBrooks Davis 
588564b9ff2SBrooks Davis #define LUA_MAXINTEGER		_I64_MAX
589564b9ff2SBrooks Davis #define LUA_MININTEGER		_I64_MIN
590564b9ff2SBrooks Davis 
591564b9ff2SBrooks Davis #else				/* }{ */
592564b9ff2SBrooks Davis 
593564b9ff2SBrooks Davis #error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \
594564b9ff2SBrooks Davis   or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)"
595564b9ff2SBrooks Davis 
596564b9ff2SBrooks Davis #endif				/* } */
597564b9ff2SBrooks Davis 
598564b9ff2SBrooks Davis #else				/* }{ */
599564b9ff2SBrooks Davis 
600564b9ff2SBrooks Davis #error "numeric integer type not defined"
601564b9ff2SBrooks Davis 
602564b9ff2SBrooks Davis #endif				/* } */
603564b9ff2SBrooks Davis 
604564b9ff2SBrooks Davis /* }================================================================== */
605564b9ff2SBrooks Davis 
606564b9ff2SBrooks Davis 
607564b9ff2SBrooks Davis /*
608564b9ff2SBrooks Davis ** {==================================================================
609564b9ff2SBrooks Davis ** Dependencies with C99 and other C details
610564b9ff2SBrooks Davis ** ===================================================================
611564b9ff2SBrooks Davis */
612564b9ff2SBrooks Davis 
613564b9ff2SBrooks Davis /*
614564b9ff2SBrooks Davis @@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89.
615564b9ff2SBrooks Davis ** (All uses in Lua have only one format item.)
616564b9ff2SBrooks Davis */
617564b9ff2SBrooks Davis #if !defined(LUA_USE_C89)
618564b9ff2SBrooks Davis #define l_sprintf(s,sz,f,i)	snprintf(s,sz,f,i)
619564b9ff2SBrooks Davis #else
620564b9ff2SBrooks Davis #define l_sprintf(s,sz,f,i)	((void)(sz), sprintf(s,f,i))
621564b9ff2SBrooks Davis #endif
622564b9ff2SBrooks Davis 
623564b9ff2SBrooks Davis 
624564b9ff2SBrooks Davis /*
625564b9ff2SBrooks Davis @@ lua_strx2number converts an hexadecimal numeric string to a number.
626564b9ff2SBrooks Davis ** In C99, 'strtod' does that conversion. Otherwise, you can
627564b9ff2SBrooks Davis ** leave 'lua_strx2number' undefined and Lua will provide its own
628564b9ff2SBrooks Davis ** implementation.
629564b9ff2SBrooks Davis */
630564b9ff2SBrooks Davis #if !defined(LUA_USE_C89)
631564b9ff2SBrooks Davis #define lua_strx2number(s,p)		lua_str2number(s,p)
632564b9ff2SBrooks Davis #endif
633564b9ff2SBrooks Davis 
634564b9ff2SBrooks Davis 
635564b9ff2SBrooks Davis /*
636564b9ff2SBrooks Davis @@ lua_pointer2str converts a pointer to a readable string in a
637564b9ff2SBrooks Davis ** non-specified way.
638564b9ff2SBrooks Davis */
639564b9ff2SBrooks Davis #define lua_pointer2str(buff,sz,p)	l_sprintf(buff,sz,"%p",p)
640564b9ff2SBrooks Davis 
641564b9ff2SBrooks Davis 
642564b9ff2SBrooks Davis /*
643564b9ff2SBrooks Davis @@ lua_number2strx converts a float to an hexadecimal numeric string.
644564b9ff2SBrooks Davis ** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that.
645564b9ff2SBrooks Davis ** Otherwise, you can leave 'lua_number2strx' undefined and Lua will
646564b9ff2SBrooks Davis ** provide its own implementation.
647564b9ff2SBrooks Davis */
648564b9ff2SBrooks Davis #if !defined(LUA_USE_C89)
649564b9ff2SBrooks Davis #define lua_number2strx(L,b,sz,f,n)  \
650564b9ff2SBrooks Davis 	((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n)))
651564b9ff2SBrooks Davis #endif
652564b9ff2SBrooks Davis 
653564b9ff2SBrooks Davis 
654564b9ff2SBrooks Davis /*
655564b9ff2SBrooks Davis ** 'strtof' and 'opf' variants for math functions are not valid in
656564b9ff2SBrooks Davis ** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the
657564b9ff2SBrooks Davis ** availability of these variants. ('math.h' is already included in
658564b9ff2SBrooks Davis ** all files that use these macros.)
659564b9ff2SBrooks Davis */
660564b9ff2SBrooks Davis #if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF))
661564b9ff2SBrooks Davis #undef l_mathop  /* variants not available */
662564b9ff2SBrooks Davis #undef lua_str2number
663564b9ff2SBrooks Davis #define l_mathop(op)		(lua_Number)op  /* no variant */
664564b9ff2SBrooks Davis #define lua_str2number(s,p)	((lua_Number)strtod((s), (p)))
665564b9ff2SBrooks Davis #endif
666564b9ff2SBrooks Davis 
667564b9ff2SBrooks Davis 
668564b9ff2SBrooks Davis /*
669564b9ff2SBrooks Davis @@ LUA_KCONTEXT is the type of the context ('ctx') for continuation
670564b9ff2SBrooks Davis ** functions.  It must be a numerical type; Lua will use 'intptr_t' if
671564b9ff2SBrooks Davis ** available, otherwise it will use 'ptrdiff_t' (the nearest thing to
672564b9ff2SBrooks Davis ** 'intptr_t' in C89)
673564b9ff2SBrooks Davis */
674564b9ff2SBrooks Davis #define LUA_KCONTEXT	ptrdiff_t
675564b9ff2SBrooks Davis 
676564b9ff2SBrooks Davis #if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \
677564b9ff2SBrooks Davis     __STDC_VERSION__ >= 199901L
678564b9ff2SBrooks Davis #include <stdint.h>
679564b9ff2SBrooks Davis #if defined(INTPTR_MAX)  /* even in C99 this type is optional */
680564b9ff2SBrooks Davis #undef LUA_KCONTEXT
681564b9ff2SBrooks Davis #define LUA_KCONTEXT	intptr_t
682564b9ff2SBrooks Davis #endif
683564b9ff2SBrooks Davis #endif
684564b9ff2SBrooks Davis 
685564b9ff2SBrooks Davis 
686564b9ff2SBrooks Davis /*
687564b9ff2SBrooks Davis @@ lua_getlocaledecpoint gets the locale "radix character" (decimal point).
688564b9ff2SBrooks Davis ** Change that if you do not want to use C locales. (Code using this
689564b9ff2SBrooks Davis ** macro must include header 'locale.h'.)
690564b9ff2SBrooks Davis */
691564b9ff2SBrooks Davis #if !defined(lua_getlocaledecpoint)
692564b9ff2SBrooks Davis #define lua_getlocaledecpoint()		(localeconv()->decimal_point[0])
693564b9ff2SBrooks Davis #endif
694564b9ff2SBrooks Davis 
695564b9ff2SBrooks Davis /* }================================================================== */
696564b9ff2SBrooks Davis 
697564b9ff2SBrooks Davis 
698564b9ff2SBrooks Davis /*
699564b9ff2SBrooks Davis ** {==================================================================
700564b9ff2SBrooks Davis ** Language Variations
701564b9ff2SBrooks Davis ** =====================================================================
702564b9ff2SBrooks Davis */
703564b9ff2SBrooks Davis 
704564b9ff2SBrooks Davis /*
705564b9ff2SBrooks Davis @@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some
706564b9ff2SBrooks Davis ** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from
707564b9ff2SBrooks Davis ** numbers to strings. Define LUA_NOCVTS2N to turn off automatic
708564b9ff2SBrooks Davis ** coercion from strings to numbers.
709564b9ff2SBrooks Davis */
710564b9ff2SBrooks Davis /* #define LUA_NOCVTN2S */
711564b9ff2SBrooks Davis /* #define LUA_NOCVTS2N */
712564b9ff2SBrooks Davis 
713564b9ff2SBrooks Davis 
714564b9ff2SBrooks Davis /*
715564b9ff2SBrooks Davis @@ LUA_USE_APICHECK turns on several consistency checks on the C API.
716564b9ff2SBrooks Davis ** Define it as a help when debugging C code.
717564b9ff2SBrooks Davis */
718564b9ff2SBrooks Davis #if defined(LUA_USE_APICHECK)
719564b9ff2SBrooks Davis #include <assert.h>
720564b9ff2SBrooks Davis #define luai_apicheck(l,e)	assert(e)
721564b9ff2SBrooks Davis #endif
722564b9ff2SBrooks Davis 
723564b9ff2SBrooks Davis /* }================================================================== */
724564b9ff2SBrooks Davis 
725564b9ff2SBrooks Davis 
726564b9ff2SBrooks Davis /*
727564b9ff2SBrooks Davis ** {==================================================================
728564b9ff2SBrooks Davis ** Macros that affect the API and must be stable (that is, must be the
729564b9ff2SBrooks Davis ** same when you compile Lua and when you compile code that links to
730564b9ff2SBrooks Davis ** Lua). You probably do not want/need to change them.
731564b9ff2SBrooks Davis ** =====================================================================
732564b9ff2SBrooks Davis */
733564b9ff2SBrooks Davis 
734564b9ff2SBrooks Davis /*
735564b9ff2SBrooks Davis @@ LUAI_MAXSTACK limits the size of the Lua stack.
736564b9ff2SBrooks Davis ** CHANGE it if you need a different limit. This limit is arbitrary;
737564b9ff2SBrooks Davis ** its only purpose is to stop Lua from consuming unlimited stack
738564b9ff2SBrooks Davis ** space (and to reserve some numbers for pseudo-indices).
739564b9ff2SBrooks Davis */
740564b9ff2SBrooks Davis #if LUAI_BITSINT >= 32
741564b9ff2SBrooks Davis #define LUAI_MAXSTACK		1000000
742564b9ff2SBrooks Davis #else
743564b9ff2SBrooks Davis #define LUAI_MAXSTACK		15000
744564b9ff2SBrooks Davis #endif
745564b9ff2SBrooks Davis 
746564b9ff2SBrooks Davis 
747564b9ff2SBrooks Davis /*
748564b9ff2SBrooks Davis @@ LUA_EXTRASPACE defines the size of a raw memory area associated with
749564b9ff2SBrooks Davis ** a Lua state with very fast access.
750564b9ff2SBrooks Davis ** CHANGE it if you need a different size.
751564b9ff2SBrooks Davis */
752564b9ff2SBrooks Davis #define LUA_EXTRASPACE		(sizeof(void *))
753564b9ff2SBrooks Davis 
754564b9ff2SBrooks Davis 
755564b9ff2SBrooks Davis /*
756564b9ff2SBrooks Davis @@ LUA_IDSIZE gives the maximum size for the description of the source
757564b9ff2SBrooks Davis @@ of a function in debug information.
758564b9ff2SBrooks Davis ** CHANGE it if you want a different size.
759564b9ff2SBrooks Davis */
760564b9ff2SBrooks Davis #define LUA_IDSIZE	60
761564b9ff2SBrooks Davis 
762564b9ff2SBrooks Davis 
763564b9ff2SBrooks Davis /*
764564b9ff2SBrooks Davis @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
765564b9ff2SBrooks Davis ** CHANGE it if it uses too much C-stack space. (For long double,
766564b9ff2SBrooks Davis ** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a
767564b9ff2SBrooks Davis ** smaller buffer would force a memory allocation for each call to
768564b9ff2SBrooks Davis ** 'string.format'.)
769564b9ff2SBrooks Davis */
770564b9ff2SBrooks Davis #if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE
771564b9ff2SBrooks Davis #define LUAL_BUFFERSIZE		8192
772564b9ff2SBrooks Davis #else
773564b9ff2SBrooks Davis #define LUAL_BUFFERSIZE   ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer)))
774564b9ff2SBrooks Davis #endif
775564b9ff2SBrooks Davis 
776564b9ff2SBrooks Davis /* }================================================================== */
777564b9ff2SBrooks Davis 
778564b9ff2SBrooks Davis 
779564b9ff2SBrooks Davis /*
780564b9ff2SBrooks Davis @@ LUA_QL describes how error messages quote program elements.
781564b9ff2SBrooks Davis ** Lua does not use these macros anymore; they are here for
782564b9ff2SBrooks Davis ** compatibility only.
783564b9ff2SBrooks Davis */
784564b9ff2SBrooks Davis #define LUA_QL(x)	"'" x "'"
785564b9ff2SBrooks Davis #define LUA_QS		LUA_QL("%s")
786564b9ff2SBrooks Davis 
787564b9ff2SBrooks Davis 
788564b9ff2SBrooks Davis 
789564b9ff2SBrooks Davis 
790564b9ff2SBrooks Davis /* =================================================================== */
791564b9ff2SBrooks Davis 
792564b9ff2SBrooks Davis /*
793564b9ff2SBrooks Davis ** Local configuration. You can use this space to add your redefinitions
794564b9ff2SBrooks Davis ** without modifying the main part of the file.
795564b9ff2SBrooks Davis */
796564b9ff2SBrooks Davis 
797564b9ff2SBrooks Davis 
798564b9ff2SBrooks Davis 
799564b9ff2SBrooks Davis 
800564b9ff2SBrooks Davis 
801564b9ff2SBrooks Davis #endif
802564b9ff2SBrooks Davis 
803