blob: 8126ff512501fcb2e055d5642bfa8e0028457fde (
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--- src/lapi.c (old)
+++ src/lapi.c (new)
@@ -93,15 +93,14 @@
LUA_API int lua_checkstack (lua_State *L, int size) {
- int res;
+ int res = 1;
lua_lock(L);
- if ((L->top - L->base + size) > LUAI_MAXCSTACK)
+ if (size > LUAI_MAXCSTACK || (L->top - L->base + size) > LUAI_MAXCSTACK)
res = 0; /* stack overflow */
- else {
+ else if (size > 0) {
luaD_checkstack(L, size);
if (L->ci->top < L->top + size)
L->ci->top = L->top + size;
- res = 1;
}
lua_unlock(L);
return res;
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