'numisinteger' (for table keys) replaced by 'luaV_tointeger' (old

'tointeger_aux'), which can do the same job.

3 files changed, 21 insertions, 41 deletions

diff --git a/ltable.c b/ltable.c
index 8d62ed60..5f4148eb 100644
--- a/ltable.c
+++ b/ltable.c
@@ -1,5 +1,5 @@
 /*
-** $Id: ltable.c,v 2.103 2015/02/16 13:15:00 roberto Exp roberto $
+** $Id: ltable.c,v 2.104 2015/02/20 14:05:01 roberto Exp roberto $
 ** Lua tables (hash)
 ** See Copyright Notice in lua.h
 */
@@ -84,17 +84,6 @@ static const Node dummynode_ = {
 
 
 /*
-** Checks whether a float has a value representable as a lua_Integer
-** (and does the conversion if so)
-*/
-static int numisinteger (lua_Number x, lua_Integer *p) {
-  if ((x) == l_floor(x))  /* integral value? */
-    return lua_numbertointeger(x, p);  /* try as an integer */
-  else return 0;
-}
-
-
-/*
 ** Hash for floating-point numbers.
 ** The main computation should be just
 **     n = frepx(n, &i); return (n * INT_MAX) + i
@@ -455,14 +444,13 @@ TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key) {
   TValue aux;
   if (ttisnil(key)) luaG_runerror(L, "table index is nil");
   else if (ttisfloat(key)) {
-    lua_Number n = fltvalue(key);
     lua_Integer k;
-    if (luai_numisnan(n))
-      luaG_runerror(L, "table index is NaN");
-    if (numisinteger(n, &k)) {  /* index is int? */
+    if (luaV_tointeger(key, &k, 0)) {  /* index is int? */
       setivalue(&aux, k);
       key = &aux;  /* insert it as an integer */
     }
+    else if (luai_numisnan(fltvalue(key)))
+      luaG_runerror(L, "table index is NaN");
   }
   mp = mainposition(t, key);
   if (!ttisnil(gval(mp)) || isdummy(mp)) {  /* main position is taken? */
@@ -556,7 +544,7 @@ const TValue *luaH_get (Table *t, const TValue *key) {
     case LUA_TNIL: return luaO_nilobject;
     case LUA_TNUMFLT: {
       lua_Integer k;
-      if (numisinteger(fltvalue(key), &k)) /* index is int? */
+      if (luaV_tointeger(key, &k, 0)) /* index is int? */
         return luaH_getint(t, k);  /* use specialized version */
       /* else go through */
     }
diff --git a/lvm.c b/lvm.c
index 64bf883b..f40c1e95 100644
--- a/lvm.c
+++ b/lvm.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lvm.c,v 2.233 2015/01/16 16:54:37 roberto Exp roberto $
+** $Id: lvm.c,v 2.234 2015/02/05 17:15:33 roberto Exp roberto $
 ** Lua virtual machine
 ** See Copyright Notice in lua.h
 */
@@ -31,16 +31,6 @@
 #include "lvm.h"
 
 
-/*
-** You can define LUA_FLOORN2I if you want to convert floats to integers
-** by flooring them (instead of raising an error if they are not
-** integral values)
-*/
-#if !defined(LUA_FLOORN2I)
-#define LUA_FLOORN2I            0
-#endif
-
-
 /* limit for table tag-method chains (to avoid loops) */
 #define MAXTAGLOOP      2000
 
@@ -89,7 +79,7 @@ int luaV_tonumber_ (const TValue *obj, lua_Number *n) {
 ** mode == 1: takes the floor of the number
 ** mode == 2: takes the ceil of the number
 */
-static int tointeger_aux (const TValue *obj, lua_Integer *p, int mode) {
+int luaV_tointeger (const TValue *obj, lua_Integer *p, int mode) {
   TValue v;
  again:
   if (ttisfloat(obj)) {
@@ -116,14 +106,6 @@ static int tointeger_aux (const TValue *obj, lua_Integer *p, int mode) {
 
 
 /*
-** try to convert a value to an integer
-*/
-int luaV_tointeger_ (const TValue *obj, lua_Integer *p) {
-  return tointeger_aux(obj, p, LUA_FLOORN2I);
-}
-
-
-/*
 ** Try to convert a 'for' limit to an integer, preserving the
 ** semantics of the loop.
 ** (The following explanation assumes a non-negative step; it is valid
@@ -141,7 +123,7 @@ int luaV_tointeger_ (const TValue *obj, lua_Integer *p) {
 static int forlimit (const TValue *obj, lua_Integer *p, lua_Integer step,
                      int *stopnow) {
   *stopnow = 0;  /* usually, let loops run */
-  if (!tointeger_aux(obj, p, (step < 0 ? 2 : 1))) {  /* not fit in integer? */
+  if (!luaV_tointeger(obj, p, (step < 0 ? 2 : 1))) {  /* not fit in integer? */
     lua_Number n;  /* try to convert to float */
     if (!tonumber(obj, &n)) /* cannot convert to float? */
       return 0;  /* not a number */
diff --git a/lvm.h b/lvm.h
index 4e9d7101..a50fb981 100644
--- a/lvm.h
+++ b/lvm.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lvm.h,v 2.33 2014/07/30 14:42:44 roberto Exp roberto $
+** $Id: lvm.h,v 2.34 2014/08/01 17:24:02 roberto Exp roberto $
 ** Lua virtual machine
 ** See Copyright Notice in lua.h
 */
@@ -27,11 +27,21 @@
 #endif
 
 
+/*
+** You can define LUA_FLOORN2I if you want to convert floats to integers
+** by flooring them (instead of raising an error if they are not
+** integral values)
+*/
+#if !defined(LUA_FLOORN2I)
+#define LUA_FLOORN2I            0
+#endif
+
+
 #define tonumber(o,n) \
         (ttisfloat(o) ? (*(n) = fltvalue(o), 1) : luaV_tonumber_(o,n))
 
 #define tointeger(o,i) \
-        (ttisinteger(o) ? (*(i) = ivalue(o), 1) : luaV_tointeger_(o,i))
+    (ttisinteger(o) ? (*(i) = ivalue(o), 1) : luaV_tointeger(o,i,LUA_FLOORN2I))
 
 #define intop(op,v1,v2) l_castU2S(l_castS2U(v1) op l_castS2U(v2))
 
@@ -42,7 +52,7 @@ LUAI_FUNC int luaV_equalobj (lua_State *L, const TValue *t1, const TValue *t2);
 LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
 LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r);
 LUAI_FUNC int luaV_tonumber_ (const TValue *obj, lua_Number *n);
-LUAI_FUNC int luaV_tointeger_ (const TValue *obj, lua_Integer *p);
+LUAI_FUNC int luaV_tointeger (const TValue *obj, lua_Integer *p, int mode);
 LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,
                                             StkId val);
 LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,