diff options
Diffstat (limited to 'ldo.c')
-rw-r--r-- | ldo.c | 15 |
1 files changed, 7 insertions, 8 deletions
@@ -227,7 +227,7 @@ int luaD_growstack (lua_State *L, int n, int raiseerror) { luaD_throw(L, LUA_ERRERR); /* error inside message handler */ return 0; /* if not 'raiseerror', just signal it */ } - else { + else if (n < LUAI_MAXSTACK) { /* avoids arithmetic overflows */ int newsize = 2 * size; /* tentative new size */ int needed = cast_int(L->top - L->stack) + n; if (newsize > LUAI_MAXSTACK) /* cannot cross the limit */ @@ -236,14 +236,13 @@ int luaD_growstack (lua_State *L, int n, int raiseerror) { newsize = needed; if (l_likely(newsize <= LUAI_MAXSTACK)) return luaD_reallocstack(L, newsize, raiseerror); - else { /* stack overflow */ - /* add extra size to be able to handle the error message */ - luaD_reallocstack(L, ERRORSTACKSIZE, raiseerror); - if (raiseerror) - luaG_runerror(L, "stack overflow"); - return 0; - } } + /* else stack overflow */ + /* add extra size to be able to handle the error message */ + luaD_reallocstack(L, ERRORSTACKSIZE, raiseerror); + if (raiseerror) + luaG_runerror(L, "stack overflow"); + return 0; } |