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configuration file for Lua project
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luaconf.h
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280
luaconf.h
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/*
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** $Id: $
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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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#ifndef lconfig_h
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#define lconfig_h
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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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** Index (search for keyword to find corresponding entry)
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** =======================================================
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*/
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/* }====================================================== */
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/*
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** {======================================================
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** Generic configuration
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** =======================================================
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*/
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/* type of numbers in Lua */
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#define LUA_NUMBER double
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/* formats for Lua numbers */
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#define LUA_NUMBER_SCAN "%lf"
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#define LUA_NUMBER_FMT "%.14g"
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/* type for integer functions */
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#define LUA_INTEGER long
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/* mark for all API functions */
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#define LUA_API extern
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/* mark for auxlib functions */
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#define LUALIB_API extern
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/* }====================================================== */
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/*
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** {======================================================
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** Stand-alone configuration
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** =======================================================
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*/
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#ifdef lua_c
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/* definition of `isatty' */
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#ifdef _POSIX_C_SOURCE
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#include <unistd.h>
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#define stdin_is_tty() isatty(0)
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#else
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#define stdin_is_tty() 1 /* assume stdin is a tty */
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#endif
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#define PROMPT "> "
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#define PROMPT2 ">> "
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#define PROGNAME "lua"
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#define LUA_EXTRALIBS /* empty */
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#define lua_userinit(L) openstdlibs(L)
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/*
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** this macro can be used by some `history' system to save lines
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** read in manual input
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*/
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#define lua_saveline(L,line) /* empty */
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#endif
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/* }====================================================== */
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/*
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** {======================================================
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** Core configuration
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** =======================================================
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*/
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#ifdef LUA_CORE
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/* LUA-C API assertions */
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#define api_check(L, o) /* empty */
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/* an unsigned integer with at least 32 bits */
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#define LUA_UINT32 unsigned long
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/* a signed integer with at least 32 bits */
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#define LUA_INT32 long
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#define LUA_MAXINT32 LONG_MAX
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/* maximum depth for calls (unsigned short) */
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#define LUA_MAXCALLS 4096
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/*
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** maximum depth for C calls (unsigned short): Not too big, or may
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** overflow the C stack...
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*/
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#define LUA_MAXCCALLS 200
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/* maximum size for the virtual stack of a C function */
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#define MAXCSTACK 2048
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/*
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** maximum number of syntactical nested non-terminals: Not too big,
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** or may overflow the C stack...
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*/
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#define LUA_MAXPARSERLEVEL 200
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/* maximum number of variables declared in a function */
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#define MAXVARS 200 /* <MAXSTACK */
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/* maximum number of upvalues per function */
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#define MAXUPVALUES 32 /* <MAXSTACK */
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/* maximum size of expressions for optimizing `while' code */
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#define MAXEXPWHILE 100
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/* function to convert a lua_Number to int (with any rounding method) */
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#if defined(__GNUC__) && defined(__i386)
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#define lua_number2int(i,d) __asm__("fldl %1\nfistpl %0":"=m"(i):"m"(d))
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#else
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#define lua_number2int(i,n) ((i)=(int)(n))
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#endif
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/* function to convert a lua_Number to lua_Integer (with any rounding method) */
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#define lua_number2integer(i,n) lua_number2int(i,n)
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/* function to convert a lua_Number to a string */
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#include <stdio.h>
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#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
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/* function to convert a string to a lua_Number */
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#define lua_str2number(s,p) strtod((s), (p))
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/* result of a `usual argument conversion' over lua_Number */
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#define LUA_UACNUMBER double
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/* number of bits in an `int' */
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/* avoid overflows in comparison */
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#if INT_MAX-20 < 32760
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#define LUA_BITSINT 16
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#elif INT_MAX > 2147483640L
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/* machine has at least 32 bits */
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#define LUA_BITSINT 32
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#else
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#error "you must define LUA_BITSINT with number of bits in an integer"
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#endif
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/* type to ensure maximum alignment */
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#define LUSER_ALIGNMENT_T union { double u; void *s; long l; }
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/* exception handling */
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#ifndef __cplusplus
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/* default handling with long jumps */
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#include <setjmp.h>
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#define L_THROW(c) longjmp((c)->b, 1)
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#define L_TRY(c,a) if (setjmp((c)->b) == 0) { a }
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#define l_jmpbuf jmp_buf
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#else
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/* C++ exceptions */
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#define L_THROW(c) throw(c)
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#define L_TRY(c,a) try { a } catch(...) \
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{ if ((c)->status == 0) (c)->status = -1; }
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#define l_jmpbuf int /* dummy variable */
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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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** Library configuration
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** =======================================================
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*/
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#ifdef LUA_LIB
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/* buffer size used by lauxlib buffer system */
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#define LUAL_BUFFERSIZE BUFSIZ
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/* `assert' options */
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/* name of global that holds table with loaded packages */
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#define REQTAB "_LOADED"
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/* name of global that holds the search path for packages */
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#define LUA_PATH "LUA_PATH"
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/* separator of templates in a path */
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#define LUA_PATH_SEP ';'
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/* wild char in each template */
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#define LUA_PATH_MARK '?'
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/* default path */
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#define LUA_PATH_DEFAULT "?;?.lua"
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/* maximum number of captures in pattern-matching */
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#define MAX_CAPTURES 32 /* arbitrary limit */
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/*
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** by default, gcc does not get `tmpname'
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*/
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#ifdef __GNUC__
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#define USE_TMPNAME 0
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#else
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#define USE_TMPNAME 1
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#endif
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/*
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** by default, posix systems get `popen'
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*/
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#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 2
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#define USE_POPEN 1
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#else
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#define USE_POPEN 0
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#endif
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#endif
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/* }====================================================== */
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/* Local configuration */
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#undef USE_TMPNAME
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#define USE_TMPNAME 1
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#endif
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