ensure proper rounding

lmathlib.c

@@ -1,5 +1,5 @@
 /*
-** $Id: lmathlib.c,v 1.47 2002/06/18 15:16:18 roberto Exp roberto $
+** $Id: lmathlib.c,v 1.48 2002/06/24 13:54:13 roberto Exp roberto $
 ** Standard mathematical library
 ** See Copyright Notice in lua.h
 */
@@ -177,14 +177,14 @@ static int math_random (lua_State *L) {
     case 1: {  /* only upper limit */
       int u = luaL_check_int(L, 1);
       luaL_arg_check(L, 1<=u, 1, "interval is empty");
-      lua_pushnumber(L, (int)(r*u)+1);  /* integer between 1 and `u' */
+      lua_pushnumber(L, (int)floor(r*u)+1);  /* int between 1 and `u' */
       break;
     }
     case 2: {  /* lower and upper limits */
       int l = luaL_check_int(L, 1);
       int u = luaL_check_int(L, 2);
       luaL_arg_check(L, l<=u, 2, "interval is empty");
-      lua_pushnumber(L, (int)(r*(u-l+1))+l);  /* integer between `l' and `u' */
+      lua_pushnumber(L, (int)floor(r*(u-l+1))+l);  /* int between `l' and `u' */
       break;
     }
     default: return luaL_error(L, "wrong number of arguments");