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when possible, library functions accept nil as none

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Roberto Ierusalimschy
2002-03-27 12:30:41 -03:00
parent 405e3a4597
commit d1f220217b
5 changed files with 13 additions and 13 deletions
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4
ldblib.c
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@@ -1,5 +1,5 @@
/*
** $Id: ldblib.c,v 1.43 2002/02/07 17:24:32 roberto Exp roberto $
** $Id: ldblib.c,v 1.44 2002/03/20 12:54:08 roberto Exp roberto $
** Interface from Lua to its debug API
** See Copyright Notice in lua.h
*/
@@ -141,7 +141,7 @@ static void linef (lua_State *L, lua_Debug *ar) {
static void sethook (lua_State *L, const char *key, lua_Hook hook,
lua_Hook (*sethookf)(lua_State * L, lua_Hook h)) {
lua_settop(L, 1);
if (lua_isnil(L, 1))
if (lua_isnoneornil(L, 1))
(*sethookf)(L, NULL);
else if (lua_isfunction(L, 1))
(*sethookf)(L, hook);