diff options
Diffstat (limited to 'libs/liblua/src/luaconf.h')
| -rw-r--r-- | libs/liblua/src/luaconf.h | 111 |
1 files changed, 70 insertions, 41 deletions
diff --git a/libs/liblua/src/luaconf.h b/libs/liblua/src/luaconf.h index d9cf18ca1d..e64d2ee392 100644 --- a/libs/liblua/src/luaconf.h +++ b/libs/liblua/src/luaconf.h @@ -16,13 +16,13 @@ ** =================================================================== ** General Configuration File for Lua ** -** Some definitions here can be changed externally, through the -** compiler (e.g., with '-D' options). Those are protected by -** '#if !defined' guards. However, several other definitions should -** be changed directly here, either because they affect the Lua -** ABI (by making the changes here, you ensure that all software -** connected to Lua, such as C libraries, will be compiled with the -** same configuration); or because they are seldom changed. +** Some definitions here can be changed externally, through the compiler +** (e.g., with '-D' options): They are commented out or protected +** by '#if !defined' guards. However, several other definitions +** should be changed directly here, either because they affect the +** Lua ABI (by making the changes here, you ensure that all software +** connected to Lua, such as C libraries, will be compiled with the same +** configuration); or because they are seldom changed. ** ** Search for "@@" to find all configurable definitions. ** =================================================================== @@ -81,27 +81,13 @@ /* ** {================================================================== -** Configuration for Number types. +** Configuration for Number types. These options should not be +** set externally, because any other code connected to Lua must +** use the same configuration. ** =================================================================== */ /* -@@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. -*/ -/* #define LUA_32BITS */ - - -/* -@@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for -** C89 ('long' and 'double'); Windows always has '__int64', so it does -** not need to use this case. -*/ -#if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS) -#define LUA_C89_NUMBERS -#endif - - -/* @@ LUA_INT_TYPE defines the type for Lua integers. @@ LUA_FLOAT_TYPE defines the type for Lua floats. ** Lua should work fine with any mix of these options supported @@ -121,7 +107,31 @@ #define LUA_FLOAT_DOUBLE 2 #define LUA_FLOAT_LONGDOUBLE 3 -#if defined(LUA_32BITS) /* { */ + +/* Default configuration ('long long' and 'double', for 64-bit Lua) */ +#define LUA_INT_DEFAULT LUA_INT_LONGLONG +#define LUA_FLOAT_DEFAULT LUA_FLOAT_DOUBLE + + +/* +@@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. +*/ +#define LUA_32BITS 0 + + +/* +@@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for +** C89 ('long' and 'double'); Windows always has '__int64', so it does +** not need to use this case. +*/ +#if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS) +#define LUA_C89_NUMBERS 1 +#else +#define LUA_C89_NUMBERS 0 +#endif + + +#if LUA_32BITS /* { */ /* ** 32-bit integers and 'float' */ @@ -132,26 +142,21 @@ #endif #define LUA_FLOAT_TYPE LUA_FLOAT_FLOAT -#elif defined(LUA_C89_NUMBERS) /* }{ */ +#elif LUA_C89_NUMBERS /* }{ */ /* ** largest types available for C89 ('long' and 'double') */ #define LUA_INT_TYPE LUA_INT_LONG #define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE -#endif /* } */ +#else /* }{ */ +/* use defaults */ +#define LUA_INT_TYPE LUA_INT_DEFAULT +#define LUA_FLOAT_TYPE LUA_FLOAT_DEFAULT -/* -** default configuration for 64-bit Lua ('long long' and 'double') -*/ -#if !defined(LUA_INT_TYPE) -#define LUA_INT_TYPE LUA_INT_LONGLONG -#endif +#endif /* } */ -#if !defined(LUA_FLOAT_TYPE) -#define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE -#endif /* }================================================================== */ @@ -373,14 +378,13 @@ /* ** {================================================================== -** Configuration for Numbers. +** Configuration for Numbers (low-level part). ** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_* ** satisfy your needs. ** =================================================================== */ /* -@@ LUA_NUMBER is the floating-point type used by Lua. @@ LUAI_UACNUMBER is the result of a 'default argument promotion' @@ over a floating number. @@ l_floatatt(x) corrects float attribute 'x' to the proper float type @@ -473,10 +477,7 @@ /* -@@ LUA_INTEGER is the integer type used by Lua. -** @@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER. -** @@ LUAI_UACINT is the result of a 'default argument promotion' @@ over a LUA_INTEGER. @@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers. @@ -659,6 +660,34 @@ #define lua_getlocaledecpoint() (localeconv()->decimal_point[0]) #endif + +/* +** macros to improve jump prediction, used mostly for error handling +** and debug facilities. (Some macros in the Lua API use these macros. +** Define LUA_NOBUILTIN if you do not want '__builtin_expect' in your +** code.) +*/ +#if !defined(luai_likely) + +#if defined(__GNUC__) && !defined(LUA_NOBUILTIN) +#define luai_likely(x) (__builtin_expect(((x) != 0), 1)) +#define luai_unlikely(x) (__builtin_expect(((x) != 0), 0)) +#else +#define luai_likely(x) (x) +#define luai_unlikely(x) (x) +#endif + +#endif + + +#if defined(LUA_CORE) || defined(LUA_LIB) +/* shorter names for Lua's own use */ +#define l_likely(x) luai_likely(x) +#define l_unlikely(x) luai_unlikely(x) +#endif + + + /* }================================================================== */ |