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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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lua.h
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@@ -1,5 +1,5 @@
/*
** $Id: lua.h,v 1.123 2002/03/18 18:18:35 roberto Exp roberto $
** $Id: lua.h,v 1.124 2002/03/27 12:49:53 roberto Exp roberto $
** Lua - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: info@lua.org
@@ -229,6 +229,7 @@ LUA_API void lua_newuserdatabox (lua_State *L, void *u);
#define lua_isnil(L,n) (lua_type(L,n) == LUA_TNIL)
#define lua_isboolean(L,n) (lua_type(L,n) == LUA_TBOOLEAN)
#define lua_isnone(L,n) (lua_type(L,n) == LUA_TNONE)
#define lua_isnoneornil(L, n) (lua_type(L,n) <= 0)
#define lua_pushliteral(L, s) lua_pushlstring(L, "" s, \
(sizeof(s)/sizeof(char))-1)