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configuration for numerical types through only one #define for

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each type
This commit is contained in:
Roberto Ierusalimschy 2015-03-02 13:59:01 -03:00
parent 6408bc0b7f
commit 951b562cf8
1 changed files with 28 additions and 20 deletions
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48
luaconf.h
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@ -1,5 +1,5 @@
/*
** $Id: luaconf.h,v 1.245 2015/02/05 17:15:33 roberto Exp roberto $
** $Id: luaconf.h,v 1.246 2015/02/28 19:22:31 roberto Exp roberto $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@ -96,10 +96,8 @@
/*
@@ LUA_INT_INT / LUA_INT_LONG / LUA_INT_LONGLONG defines the type for
** Lua integers.
@@ LUA_REAL_FLOAT / LUA_REAL_DOUBLE / LUA_REAL_LONGDOUBLE defines
** the type for Lua floats.
@@ LUA_INT_TYPE defines the type for Lua integers.
@@ LUA_REAL_TYPE defines the type for Lua floats.
** Lua should work fine with any mix of these options (if supported
** by your C compiler). The usual configurations are 64-bit integers
** and 'double' (the default), 32-bit integers and 'float' (for
@ -107,30 +105,40 @@
** compliant with C99, which may not have support for 'long long').
*/
/* predefined options for LUA_INT_TYPE */
#define LUA_INT_INT 1
#define LUA_INT_LONG 2
#define LUA_INT_LONGLONG 3
/* predefined options for LUA_REAL_TYPE */
#define LUA_REAL_FLOAT 1
#define LUA_REAL_DOUBLE 2
#define LUA_REAL_LONGDOUBLE 3
#if defined(LUA_32BITS) /* { */
/*
** 32-bit integers and 'float'
*/
#if LUAI_BITSINT >= 32 /* use 'int' if big enough */
#define LUA_INT_INT
#define LUA_INT_TYPE LUA_INT_INT
#else /* otherwise use 'long' */
#define LUA_INT_LONG
#define LUA_INT_TYPE LUA_INT_LONG
#endif
#define LUA_REAL_FLOAT
#define LUA_REAL_TYPE LUA_REAL_FLOAT
#elif defined(LUA_C89_NUMBERS) /* }{ */
/*
** largest types available for C89 ('long' and 'double')
*/
#define LUA_INT_LONG
#define LUA_REAL_DOUBLE
#define LUA_INT_TYPE LUA_INT_LONG
#define LUA_REAL_TYPE LUA_REAL_DOUBLE
#else /* }{ */
/*
** default configuration for 64-bit Lua ('long long' and 'double')
*/
#define LUA_INT_LONGLONG
#define LUA_REAL_DOUBLE
#define LUA_INT_TYPE LUA_INT_LONGLONG
#define LUA_REAL_TYPE LUA_REAL_DOUBLE
#endif /* } */
@ -155,7 +163,7 @@
** non-conventional directories.
*/
#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
#if defined(_WIN32) /* { */
#if defined(_WIN32) /* { */
/*
** In Windows, any exclamation mark ('!') in the path is replaced by the
** path of the directory of the executable file of the current process.
@ -404,7 +412,7 @@
@@ lua_str2number converts a decimal numeric string to a number.
*/
#if defined(LUA_REAL_FLOAT) /* { single float */
#if LUA_REAL_TYPE == LUA_REAL_FLOAT /* { single float */
#define LUA_NUMBER float
@ -418,7 +426,7 @@
#define lua_str2number(s,p) strtof((s), (p))
#elif defined(LUA_REAL_LONGDOUBLE) /* }{ long double */
#elif LUA_REAL_TYPE == LUA_REAL_LONGDOUBLE /* }{ long double */
#define LUA_NUMBER long double
@ -431,7 +439,7 @@
#define lua_str2number(s,p) strtold((s), (p))
#elif defined(LUA_REAL_DOUBLE) /* }{ double */
#elif LUA_REAL_TYPE == LUA_REAL_DOUBLE /* }{ double */
#define LUA_NUMBER double
@ -444,7 +452,7 @@
#define lua_str2number(s,p) strtod((s), (p))
#else /* }{ */
#else /* }{ */
#error "numeric real type not defined"
@ -502,7 +510,7 @@
/* now the variable definitions */
#if defined(LUA_INT_INT) /* { int */
#if LUA_INT_TYPE == LUA_INT_INT /* { int */
#define LUA_INTEGER int
#define LUA_INTEGER_FRMLEN ""
@ -510,7 +518,7 @@
#define LUA_MAXINTEGER INT_MAX
#define LUA_MININTEGER INT_MIN
#elif defined(LUA_INT_LONG) /* }{ long */
#elif LUA_INT_TYPE == LUA_INT_LONG /* }{ long */
#define LUA_INTEGER long
#define LUA_INTEGER_FRMLEN "l"
@ -518,7 +526,7 @@
#define LUA_MAXINTEGER LONG_MAX
#define LUA_MININTEGER LONG_MIN
#elif defined(LUA_INT_LONGLONG) /* }{ long long */
#elif LUA_INT_TYPE == LUA_INT_LONGLONG /* }{ long long */
#if defined(LLONG_MAX) /* { */
/* use ISO C99 stuff */