Added gcc option '-Wconversion'

No warnings for standard numerical types. Still pending alternative
numerical types.

1 files changed, 2 insertions, 2 deletions

diff --git a/ltablib.c b/ltablib.c
index b5948591..538d585d 100644
--- a/ltablib.c
+++ b/ltablib.c
@@ -192,7 +192,7 @@ static int tconcat (lua_State *L) {
 static int tpack (lua_State *L) {
   int i;
   int n = lua_gettop(L);  /* number of elements to pack */
-  lua_createtable(L, n, 1);  /* create result table */
+  lua_createtable(L, cast_uint(n), 1);  /* create result table */
   lua_insert(L, 1);  /* put it at index 1 */
   for (i = n; i >= 1; i--)  /* assign elements */
     lua_seti(L, 1, i);
@@ -207,7 +207,7 @@ static int tunpack (lua_State *L) {
   lua_Integer i = luaL_optinteger(L, 2, 1);
   lua_Integer e = luaL_opt(L, luaL_checkinteger, 3, luaL_len(L, 1));
   if (i > e) return 0;  /* empty range */
-  n = (lua_Unsigned)e - i;  /* number of elements minus 1 (avoid overflows) */
+  n = l_castS2U(e) - l_castS2U(i);  /* number of elements minus 1 */
   if (l_unlikely(n >= (unsigned int)INT_MAX  ||
                  !lua_checkstack(L, (int)(++n))))
     return luaL_error(L, "too many results to unpack");