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Diffstat (limited to 'manual.tex')
| -rw-r--r-- | manual.tex | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -1,4 +1,4 @@ -% $Id: manual.tex,v 2.6 1997/06/26 20:39:10 roberto Exp roberto $ +% $Id: manual.tex,v 2.7 1997/06/27 18:39:34 roberto Exp roberto $ \documentstyle[fullpage,11pt,bnf]{article} @@ -38,7 +38,7 @@ Waldemar Celes \tecgraf\ --- Computer Science Department --- PUC-Rio } -\date{\small \verb$Date: 1997/06/26 20:39:10 $} +\date{\small \verb$Date: 1997/06/27 18:39:34 $} \maketitle @@ -263,7 +263,7 @@ values of type userdata and table can have as many different tags as needed \see{tag-method}. Tags are created with the function \verb|newtag|, and the function \verb|tag| returns the tag of a given value. -To change the tag of a given userdata or table, +To change the tag of a given table, there is the function \verb|settag| \see{pdf-newtag}. @@ -1723,12 +1723,12 @@ This function allows Lua to test the tag of a value \see{TypesSec}. It receives one argument, and returns its tag (a number). \verb|tag| is equivalent to the API function \verb|lua_tag|. -\subsubsection*{\ff {\tt settag (o, tag)}}\Deffunc{settag} -This function sets the tag of a given object \see{TypesSec}. -The object \verb|o| must be a userdata or a table. +\subsubsection*{\ff {\tt settag (t, tag)}}\Deffunc{settag} +This function sets the tag of a given table \see{TypesSec}. \verb|tag| must be a value created with \verb|newtag| \see{pdf-newtag}. -\verb|settag| is equivalent to the API function \verb|lua_settag|. +For security reasons, +it is impossible to change the tag of a userdata from Lua. \subsubsection*{\ff {\tt assert (v)}}\Deffunc{assert} This function issues an {\em ``assertion failed!''} error |