Changing the behavior of tostring: now booleans and nils can be converted to strings.

1 files changed, 21 insertions, 1 deletions

diff --git a/lib/lua/src/lvm.c b/lib/lua/src/lvm.c
index 7334edc..5c6620a 100644
--- a/lib/lua/src/lvm.c
+++ b/lib/lua/src/lvm.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lvm.c,v 1.8 2005-02-12 22:57:53 pixel Exp $
+** $Id: lvm.c,v 1.9 2006-02-09 16:57:30 pixel Exp $
 ** Lua virtual machine
 ** See Copyright Notice in lua.h
 */
@@ -53,6 +53,7 @@ const TObject *luaV_tonumber (const TObject *obj, TObject *n) {
 
 
 int luaV_tostring (lua_State *L, StkId obj) {
+#if 0
   if (!ttisnumber(obj))
     return 0;
   else {
@@ -61,6 +62,25 @@ int luaV_tostring (lua_State *L, StkId obj) {
     setsvalue2s(obj, luaS_new(L, s));
     return 1;
   }
+#else
+  if (ttisnumber(obj)) {
+    char s[32];  /* 16 digits, sign, point and \0  (+ some extra...) */
+    lua_number2str(s, nvalue(obj));
+    setsvalue2s(obj, luaS_new(L, s));
+    return 1;
+  } else if (ttisboolean(obj)) {
+    if (bvalue(obj))
+      setsvalue2s(obj, luaS_new(L, "(true)"))
+    else
+      setsvalue2s(obj, luaS_new(L, "(false)"));
+    return 1;
+  } else if (ttisnil(obj)) {
+    setsvalue(obj, luaS_new(L, "(nil)"));
+    return 1;
+  } else {
+    return 0;
+  }
+#endif
 }