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in 'luaL_checkstack', include extra stack space in test to allow

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correct execution of error routines, if necessary
This commit is contained in:
Roberto Ierusalimschy
2011-11-09 17:08:55 -02:00
parent e0e406ead3
commit eda87f1156
1 changed files with 4 additions and 2 deletions
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6
lauxlib.c
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@@ -1,5 +1,5 @@
/* /*
** $Id: lauxlib.c,v 1.233 2011/06/16 14:11:04 roberto Exp roberto $ ** $Id: lauxlib.c,v 1.234 2011/07/25 17:18:49 roberto Exp roberto $
** Auxiliary functions for building Lua libraries ** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@@ -330,7 +330,9 @@ LUALIB_API int luaL_checkoption (lua_State *L, int narg, const char *def,
LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *msg) { LUALIB_API void luaL_checkstack (lua_State *L, int space, const char *msg) {
if (!lua_checkstack(L, space)) { /* keep some extra space to run error routines, if needed */
const int extra = 2 * LUA_MINSTACK;
if (!lua_checkstack(L, space + extra)) {
if (msg) if (msg)
luaL_error(L, "stack overflow (%s)", msg); luaL_error(L, "stack overflow (%s)", msg);
else else