mirror of
https://github.com/lua/lua.git
synced 2025-01-14 05:43:00 +08:00
Better organization of definitions in categories + removed
'_CRT_SECURE_NO_WARNINGS' (useless there) + LUA_ENV/luai_writestring/ luai_writeline/luai_writestringerror/LUA_INT32/LUAI_UMEM/LUAI_MEM moved to other places (no need to be in luaconf.h) + changed definition for LUAL_BUFFERSIZE
This commit is contained in:
Roberto Ierusalimschy
parent
ff6c034330
commit
96f3a31b24
335
luaconf.h
335
luaconf.h
@ -1,5 +1,5 @@
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/*
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** $Id: luaconf.h,v 1.223 2014/10/27 18:06:03 roberto Exp roberto $
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** $Id: luaconf.h,v 1.224 2014/10/27 19:21:56 roberto Exp roberto $
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** Configuration file for Lua
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** See Copyright Notice in lua.h
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*/
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@ -19,9 +19,9 @@
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/*
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** {==================================================================
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@@ LUA_INT_INT / LUA_INT_LONG / LUA_INT_LONGLONG defines type for
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@@ Lua integers; you must define one of them.
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** Lua integers; you must define one of them.
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@@ LUA_REAL_FLOAT / LUA_REAL_DOUBLE / LUA_REAL_LONGDOUBLE defines
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@@ type for Lua floats. You must define one of them.
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** type for Lua floats. You must define one of them.
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**
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** These definitions set the numeric types for Lua. Lua should work
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** fine with any mix of these previous options (if supported by your
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@ -56,6 +56,13 @@
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/* }================================================================== */
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/*
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** {==================================================================
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** System Configuration
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** ===================================================================
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*/
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/*
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@@ LUA_ANSI controls the use of non-ansi features.
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** CHANGE it (define it) if you want Lua to avoid the use of any
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@ -71,15 +78,11 @@
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#endif
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#if defined(LUA_WIN)
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#if !defined(_CRT_SECURE_NO_WARNINGS)
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#define _CRT_SECURE_NO_WARNINGS /* avoid warnings about ANSI C functions */
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#endif
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#define LUA_DL_DLL
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#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
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#endif
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#if defined(LUA_USE_LINUX)
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#define LUA_USE_C99
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#define LUA_USE_POSIX
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@ -87,6 +90,7 @@
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#define LUA_USE_READLINE /* needs some extra libraries */
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#endif
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#if defined(LUA_USE_MACOSX)
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#define LUA_USE_C99
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#define LUA_USE_POSIX
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@ -94,16 +98,26 @@
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#define LUA_USE_READLINE /* needs an extra library: -lreadline */
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#endif
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/* }================================================================== */
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#include <limits.h>
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#include <stddef.h>
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/*
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** {==================================================================
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** Configuration for Paths.
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** ===================================================================
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*/
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/*
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@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
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@@ Lua libraries.
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** Lua libraries.
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@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
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@@ C libraries.
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** C libraries.
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** CHANGE them if your machine has a non-conventional directory
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** hierarchy or if you want to install your libraries in
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** non-conventional directories.
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@ -152,14 +166,14 @@
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#define LUA_DIRSEP "/"
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#endif
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/* }================================================================== */
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/*
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@@ LUA_ENV is the name of the variable that holds the current
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@@ environment, used to access global names.
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** CHANGE it if you do not like this name.
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** {==================================================================
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** Marks for exported symbols in the C code
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** ===================================================================
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*/
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#define LUA_ENV "_ENV"
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/*
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@@ LUA_API is a mark for all core API functions.
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@ -192,10 +206,10 @@
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/*
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@@ LUAI_FUNC is a mark for all extern functions that are not to be
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@@ exported to outside modules.
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** exported to outside modules.
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@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
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@@ that are not to be exported to outside modules (LUAI_DDEF for
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@@ definitions and LUAI_DDEC for declarations).
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** that are not to be exported to outside modules (LUAI_DDEF for
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** definitions and LUAI_DDEC for declarations).
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** CHANGE them if you need to mark them in some special way. Elf/gcc
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** (versions 3.2 and later) mark them as "hidden" to optimize access
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** when Lua is compiled as a shared library. Not all elf targets support
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@ -207,103 +221,14 @@
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#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
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defined(__ELF__) /* { */
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#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
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#else /* }{ */
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#define LUAI_FUNC extern
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#endif /* } */
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#define LUAI_DDEC LUAI_FUNC
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#define LUAI_DDEF /* empty */
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#else /* }{ */
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#define LUAI_FUNC extern
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#define LUAI_DDEC extern
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#define LUAI_DDEF /* empty */
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#endif /* } */
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/*
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@@ LUA_EXTRASPACE defines the size of a raw memory area associated with
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** a Lua state with very fast access.
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** CHANGE it if you need a different size.
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*/
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#define LUA_EXTRASPACE (sizeof(void *))
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/*
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@@ LUA_QL describes how error messages quote program elements.
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** Lua does not use these macros anymore; they are here for
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** compatibility only.
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*/
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#define LUA_QL(x) "'" x "'"
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#define LUA_QS LUA_QL("%s")
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/*
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@@ LUA_IDSIZE gives the maximum size for the description of the source
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@@ of a function in debug information.
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** CHANGE it if you want a different size.
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*/
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#define LUA_IDSIZE 60
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/*
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@@ luai_writestring/luai_writeline define how 'print' prints its results.
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** They are only used in libraries and the stand-alone program.
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*/
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#define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout)
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#define luai_writeline() (luai_writestring("\n", 1), fflush(stdout))
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/*
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@@ luai_writestringerror defines how to print error messages.
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** (A format string with one argument is enough for Lua...)
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*/
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#define luai_writestringerror(s,p) \
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(fprintf(stderr, (s), (p)), fflush(stderr))
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/*
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@@ LUAI_MAXSHORTLEN is the maximum length for short strings, that is,
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** strings that are internalized. (Cannot be smaller than reserved words
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** or tags for metamethods, as these strings must be internalized;
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** #("function") = 8, #("__newindex") = 10.)
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*/
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#define LUAI_MAXSHORTLEN 40
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/*
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@@ LUA_KCONTEXT is the type of the context ('ctx') for continuation
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** functions. It must be a numerical type; Lua will use 'intptr_t' if
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** available.
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*/
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#if defined (LUA_USE_C99)
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#include <stdint.h>
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#if defined (INTPTR_MAX) /* even in C99 this type is optional */
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#define LUA_KCONTEXT intptr_t
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#endif
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#endif
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#if !defined(LUA_KCONTEXT)
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/* default definition (the nearest thing to 'intptr_t' in C89) */
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#define LUA_KCONTEXT ptrdiff_t
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#endif
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/*
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@@ lua_strx2number converts an hexadecimal numeric string to a number.
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** In C99, 'strtod' does both conversions. Otherwise, you can
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** leave 'lua_strx2number' undefined and Lua will provide its own
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** implementation.
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*/
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#if defined(LUA_USE_C99)
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#define lua_strx2number(s,p) lua_str2number(s,p)
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#endif
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/*
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@@ LUA_USE_AFORMAT allows '%a'/'%A' specifiers in 'string.format'
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** Enable it if the C function 'printf' supports these specifiers.
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** (C99 demands it.)
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*/
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#if !defined(LUA_USE_AFORMAT) && defined(LUA_USE_C99)
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#define LUA_USE_AFORMAT
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#endif
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/* }================================================================== */
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/*
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@ -434,52 +359,6 @@
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#endif
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/*
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@@ LUA_INT32 is a signed integer with at least 32 bits.
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@@ LUAI_UMEM is an unsigned integer big enough to count the total
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@@ memory used by Lua.
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@@ LUAI_MEM is a signed integer big enough to count the total memory
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@@ used by Lua.
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** CHANGE here if for some weird reason the default definitions are not
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** good enough for your machine. Probably you do not need to change
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** this.
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*/
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#if LUAI_BITSINT >= 32 /* { */
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#define LUA_INT32 int
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#define LUAI_UMEM size_t
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#define LUAI_MEM ptrdiff_t
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#else /* }{ */
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/* 16-bit ints */
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#define LUA_INT32 long
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#define LUAI_UMEM unsigned long
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#define LUAI_MEM long
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#endif /* } */
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/*
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@@ LUAI_MAXSTACK limits the size of the Lua stack.
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** CHANGE it if you need a different limit. This limit is arbitrary;
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** its only purpose is to stop Lua from consuming unlimited stack
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** space (and to reserve some numbers for pseudo-indices).
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*/
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#if LUAI_BITSINT >= 32
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#define LUAI_MAXSTACK 1000000
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#else
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#define LUAI_MAXSTACK 15000
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#endif
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/* reserve some space for error handling */
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#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000)
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/*
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@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
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** CHANGE it if it uses too much C-stack space.
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*/
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#define LUAL_BUFFERSIZE BUFSIZ
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/*
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** {==================================================================
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@ -551,15 +430,6 @@
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#endif /* } */
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#if !defined(LUA_USE_C99)
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/* 'strtof' and 'opf' variants for math functions are C99 */
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#undef l_mathop
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#undef lua_str2number
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#define l_mathop(op) (lua_Number)op
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#define lua_str2number(s,p) ((lua_Number)strtod((s), (p)))
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#endif
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#define l_floor(x) (l_mathop(floor)(x))
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#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
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@ -687,8 +557,8 @@
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#elif defined(LUA_INT_SHORT) /* }{ short int */
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/*
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** this option is for tests only; it is not particularly useful and
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** it does not pass the test suit.
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** this option is for internal tests only; it is not particularly useful
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** and it does not pass the test suit.
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*/
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#define LUA_INTEGER short int
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@ -700,8 +570,8 @@
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#undef LUAI_UACINT
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#define LUAI_UACINT int
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#undef LUAI_MAXSTACK
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#define LUAI_MAXSTACK 15000
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#undef LUAI_BITSINT
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#define LUAI_BITSINT 16
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#define l_castS2U(x) ((LUA_UNSIGNED)(unsigned short)(x))
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@ -714,6 +584,131 @@
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/* }================================================================== */
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/*
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** {==================================================================
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** Dependencies with C99
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** ===================================================================
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*/
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/*
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@@ lua_strx2number converts an hexadecimal numeric string to a number.
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** In C99, 'strtod' does both conversions. Otherwise, you can
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** leave 'lua_strx2number' undefined and Lua will provide its own
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** implementation.
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*/
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#if defined(LUA_USE_C99)
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#define lua_strx2number(s,p) lua_str2number(s,p)
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#endif
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/*
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@@ LUA_USE_AFORMAT allows '%a'/'%A' specifiers in 'string.format'
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** Enable it if the C function 'printf' supports these specifiers.
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** (C99 demands it.)
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*/
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#if !defined(LUA_USE_AFORMAT) && defined(LUA_USE_C99)
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#define LUA_USE_AFORMAT
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#endif
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/*
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** 'strtof' and 'opf' variants for math functions are valid only
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** in C99
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*/
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#if !defined(LUA_USE_C99)
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#undef l_mathop
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#undef lua_str2number
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#define l_mathop(op) (lua_Number)op
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#define lua_str2number(s,p) ((lua_Number)strtod((s), (p)))
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#endif
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/*
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@@ LUA_KCONTEXT is the type of the context ('ctx') for continuation
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** functions. It must be a numerical type; Lua will use 'intptr_t' if
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** available, otherwise it will use 'ptrdiff_t' (the nearest thing to
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** 'intptr_t' in C89)
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*/
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#define LUA_KCONTEXT ptrdiff_t
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#if defined (LUA_USE_C99)
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#include <stdint.h>
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#if defined (INTPTR_MAX) /* even in C99 this type is optional */
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#undef LUA_KCONTEXT
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#define LUA_KCONTEXT intptr_t
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#endif
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#endif
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/* }================================================================== */
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/*
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** {==================================================================
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** Macros that affect the API and must be stable (that is, must be the
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** same when you compile Lua and when you compile code that links to
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** Lua). You probably do not want/need to change them.
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** =====================================================================
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*/
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/*
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@@ LUAI_MAXSTACK limits the size of the Lua stack.
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** CHANGE it if you need a different limit. This limit is arbitrary;
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** its only purpose is to stop Lua from consuming unlimited stack
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** space (and to reserve some numbers for pseudo-indices).
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*/
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#if LUAI_BITSINT >= 32
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#define LUAI_MAXSTACK 1000000
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#else
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#define LUAI_MAXSTACK 15000
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#endif
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/* reserve some space for error handling */
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#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000)
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/*
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@@ LUA_EXTRASPACE defines the size of a raw memory area associated with
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** a Lua state with very fast access.
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** CHANGE it if you need a different size.
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*/
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#define LUA_EXTRASPACE (sizeof(void *))
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/*
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@@ LUA_IDSIZE gives the maximum size for the description of the source
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@@ of a function in debug information.
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** CHANGE it if you want a different size.
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*/
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#define LUA_IDSIZE 60
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/*
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@@ LUAI_MAXSHORTLEN is the maximum length for short strings, that is,
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** strings that are internalized. (Cannot be smaller than reserved words
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** or tags for metamethods, as these strings must be internalized;
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** #("function") = 8, #("__newindex") = 10.)
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*/
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#define LUAI_MAXSHORTLEN 40
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/*
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@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
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** CHANGE it if it uses too much C-stack space.
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*/
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#define LUAL_BUFFERSIZE (0x400 * sizeof(void*))
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/* }================================================================== */
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/*
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@@ LUA_QL describes how error messages quote program elements.
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** Lua does not use these macros anymore; they are here for
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** compatibility only.
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*/
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#define LUA_QL(x) "'" x "'"
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#define LUA_QS LUA_QL("%s")
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/* =================================================================== */
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