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-rw-r--r--3rdparty/lua/src/llimits.h122
1 files changed, 83 insertions, 39 deletions
diff --git a/3rdparty/lua/src/llimits.h b/3rdparty/lua/src/llimits.h
index f21377fef98..52a32f92e30 100644
--- a/3rdparty/lua/src/llimits.h
+++ b/3rdparty/lua/src/llimits.h
@@ -1,5 +1,5 @@
/*
-** $Id: llimits.h,v 1.141 2015/11/19 19:16:22 roberto Exp $
+** $Id: llimits.h $
** Limits, basic types, and some other 'installation-dependent' definitions
** See Copyright Notice in lua.h
*/
@@ -14,6 +14,7 @@
#include "lua.h"
+
/*
** 'lu_mem' and 'l_mem' are unsigned/signed integers big enough to count
** the total memory used by Lua (in bytes). Usually, 'size_t' and
@@ -22,7 +23,7 @@
#if defined(LUAI_MEM) /* { external definitions? */
typedef LUAI_UMEM lu_mem;
typedef LUAI_MEM l_mem;
-#elif LUAI_BITSINT >= 32 /* }{ */
+#elif LUAI_IS32INT /* }{ */
typedef size_t lu_mem;
typedef ptrdiff_t l_mem;
#else /* 16-bit ints */ /* }{ */
@@ -33,12 +34,13 @@ typedef long l_mem;
/* chars used as small naturals (so that 'char' is reserved for characters) */
typedef unsigned char lu_byte;
+typedef signed char ls_byte;
/* maximum value for size_t */
#define MAX_SIZET ((size_t)(~(size_t)0))
-/* maximum size visible for Lua (must be representable in a lua_Integer */
+/* maximum size visible for Lua (must be representable in a lua_Integer) */
#define MAX_SIZE (sizeof(size_t) < sizeof(lua_Integer) ? MAX_SIZET \
: (size_t)(LUA_MAXINTEGER))
@@ -52,6 +54,23 @@ typedef unsigned char lu_byte;
/*
+** floor of the log2 of the maximum signed value for integral type 't'.
+** (That is, maximum 'n' such that '2^n' fits in the given signed type.)
+*/
+#define log2maxs(t) (sizeof(t) * 8 - 2)
+
+
+/*
+** test whether an unsigned value is a power of 2 (or zero)
+*/
+#define ispow2(x) (((x) & ((x) - 1)) == 0)
+
+
+/* number of chars of a literal string without the ending \0 */
+#define LL(x) (sizeof(x)/sizeof(char) - 1)
+
+
+/*
** conversion of pointer to unsigned integer:
** this is for hashing only; there is no problem if the integer
** cannot hold the whole pointer value
@@ -60,27 +79,20 @@ typedef unsigned char lu_byte;
-/* type to ensure maximum alignment */
-#if defined(LUAI_USER_ALIGNMENT_T)
-typedef LUAI_USER_ALIGNMENT_T L_Umaxalign;
-#else
-typedef union {
- lua_Number n;
- double u;
- void *s;
- lua_Integer i;
- long l;
-} L_Umaxalign;
-#endif
-
-
-
/* types of 'usual argument conversions' for lua_Number and lua_Integer */
typedef LUAI_UACNUMBER l_uacNumber;
typedef LUAI_UACINT l_uacInt;
-/* internal assertions for in-house debugging */
+/*
+** Internal assertions for in-house debugging
+*/
+#if defined LUAI_ASSERT
+#undef NDEBUG
+#include <assert.h>
+#define lua_assert(c) assert(c)
+#endif
+
#if defined(lua_assert)
#define check_exp(c,e) (lua_assert(c), (e))
/* to avoid problems with conditions too long */
@@ -95,7 +107,7 @@ typedef LUAI_UACINT l_uacInt;
** assertion for checking API calls
*/
#if !defined(luai_apicheck)
-#define luai_apicheck(l,e) lua_assert(e)
+#define luai_apicheck(l,e) ((void)l, lua_assert(e))
#endif
#define api_check(l,e,msg) luai_apicheck(l,(e) && msg)
@@ -111,10 +123,15 @@ typedef LUAI_UACINT l_uacInt;
#define cast(t, exp) ((t)(exp))
#define cast_void(i) cast(void, (i))
-#define cast_byte(i) cast(lu_byte, (i))
+#define cast_voidp(i) cast(void *, (i))
#define cast_num(i) cast(lua_Number, (i))
#define cast_int(i) cast(int, (i))
+#define cast_uint(i) cast(unsigned int, (i))
+#define cast_byte(i) cast(lu_byte, (i))
#define cast_uchar(i) cast(unsigned char, (i))
+#define cast_char(i) cast(char, (i))
+#define cast_charp(i) cast(char *, (i))
+#define cast_sizet(i) cast(size_t, (i))
/* cast a signed lua_Integer to lua_Unsigned */
@@ -135,6 +152,8 @@ typedef LUAI_UACINT l_uacInt;
/*
** non-return type
*/
+#if !defined(l_noret)
+
#if defined(__GNUC__)
#define l_noret void __attribute__((noreturn))
#elif defined(_MSC_VER) && _MSC_VER >= 1200
@@ -143,28 +162,35 @@ typedef LUAI_UACINT l_uacInt;
#define l_noret void
#endif
+#endif
/*
-** maximum depth for nested C calls and syntactical nested non-terminals
-** in a program. (Value must fit in an unsigned short int.)
+** Inline functions
*/
-#if !defined(LUAI_MAXCCALLS)
-#define LUAI_MAXCCALLS 200
+#if !defined(LUA_USE_C89)
+#define l_inline inline
+#elif defined(__GNUC__)
+#define l_inline __inline__
+#else
+#define l_inline /* empty */
#endif
+#define l_sinline static l_inline
/*
** type for virtual-machine instructions;
** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h)
*/
-#if LUAI_BITSINT >= 32
-typedef unsigned int Instruction;
+#if LUAI_IS32INT
+typedef unsigned int l_uint32;
#else
-typedef unsigned long Instruction;
+typedef unsigned long l_uint32;
#endif
+typedef l_uint32 Instruction;
+
/*
@@ -207,6 +233,17 @@ typedef unsigned long Instruction;
/*
+** Maximum depth for nested C calls, syntactical nested non-terminals,
+** and other features implemented through recursion in C. (Value must
+** fit in a 16-bit unsigned integer. It must also be compatible with
+** the size of the C stack.)
+*/
+#if !defined(LUAI_MAXCCALLS)
+#define LUAI_MAXCCALLS 200
+#endif
+
+
+/*
** macros that are executed whenever program enters the Lua core
** ('lua_lock') and leaves the core ('lua_unlock')
*/
@@ -225,8 +262,7 @@ typedef unsigned long Instruction;
/*
-** these macros allow user-specific actions on threads when you defined
-** LUAI_EXTRASPACE and need to do something extra when a thread is
+** these macros allow user-specific actions when a thread is
** created/deleted/resumed/yielded.
*/
#if !defined(luai_userstateopen)
@@ -270,20 +306,26 @@ typedef unsigned long Instruction;
#endif
/*
-** modulo: defined as 'a - floor(a/b)*b'; this definition gives NaN when
-** 'b' is huge, but the result should be 'a'. 'fmod' gives the result of
-** 'a - trunc(a/b)*b', and therefore must be corrected when 'trunc(a/b)
-** ~= floor(a/b)'. That happens when the division has a non-integer
-** negative result, which is equivalent to the test below.
+** modulo: defined as 'a - floor(a/b)*b'; the direct computation
+** using this definition has several problems with rounding errors,
+** so it is better to use 'fmod'. 'fmod' gives the result of
+** 'a - trunc(a/b)*b', and therefore must be corrected when
+** 'trunc(a/b) ~= floor(a/b)'. That happens when the division has a
+** non-integer negative result: non-integer result is equivalent to
+** a non-zero remainder 'm'; negative result is equivalent to 'a' and
+** 'b' with different signs, or 'm' and 'b' with different signs
+** (as the result 'm' of 'fmod' has the same sign of 'a').
*/
#if !defined(luai_nummod)
#define luai_nummod(L,a,b,m) \
- { (m) = l_mathop(fmod)(a,b); if ((m)*(b) < 0) (m) += (b); }
+ { (void)L; (m) = l_mathop(fmod)(a,b); \
+ if (((m) > 0) ? (b) < 0 : ((m) < 0 && (b) > 0)) (m) += (b); }
#endif
/* exponentiation */
#if !defined(luai_numpow)
-#define luai_numpow(L,a,b) ((void)L, l_mathop(pow)(a,b))
+#define luai_numpow(L,a,b) \
+ ((void)L, (b == 2) ? (a)*(a) : l_mathop(pow)(a,b))
#endif
/* the others are quite standard operations */
@@ -295,6 +337,8 @@ typedef unsigned long Instruction;
#define luai_numeq(a,b) ((a)==(b))
#define luai_numlt(a,b) ((a)<(b))
#define luai_numle(a,b) ((a)<=(b))
+#define luai_numgt(a,b) ((a)>(b))
+#define luai_numge(a,b) ((a)>=(b))
#define luai_numisnan(a) (!luai_numeq((a), (a)))
#endif
@@ -310,14 +354,14 @@ typedef unsigned long Instruction;
#else
/* realloc stack keeping its size */
#define condmovestack(L,pre,pos) \
- { int sz_ = (L)->stacksize; pre; luaD_reallocstack((L), sz_); pos; }
+ { int sz_ = stacksize(L); pre; luaD_reallocstack((L), sz_, 0); pos; }
#endif
#if !defined(HARDMEMTESTS)
#define condchangemem(L,pre,pos) ((void)0)
#else
#define condchangemem(L,pre,pos) \
- { if (G(L)->gcrunning) { pre; luaC_fullgc(L, 0); pos; } }
+ { if (gcrunning(G(L))) { pre; luaC_fullgc(L, 0); pos; } }
#endif
#endif