On 1/22/15, Tang Tianyong <tan...@gmail.com> wrote:
> Hi, yy_destructor function can not suppress warning about unused
> %extra_argument variable.
Sure it can. Just add code to one of your destructors that references
the %extra_argument variable. It doesn't have to actually do anything
with the variable. If the variable is named "xyzzy" then it will
probably suffice to just say "(void)xyzzy;" inside one of your
destructors.
> My yy_destructor function that Lemon generated
> like this:
>
> ```
> static void yy_destructor(
> yyParser *yypParser, /* The parser */
> YYCODETYPE yymajor, /* Type code for object to destroy */
> YYMINORTYPE *yypminor /* The object to be destroyed */
> ){
> COSStyleParseARG_FETCH;
> switch( yymajor ){
> /* Here is inserted the actions which take place when a
> ** terminal or non-terminal is destroyed. This can happen
> ** when the symbol is popped from the stack during a
> ** reduce or during error processing or when a parser is
> ** being destroyed before it is finished parsing.
> **
> ** Note: during a reduce, the only symbols destroyed are those
> ** which appear on the RHS of the rule, but which are not used
> ** inside the C code.
> */
> default: break; /* If no destructor action specified: do nothing */
> }
> }
> ```
>
> --
> *By tan...@gmail.com <tan...@gmail.com>*
> _______________________________________________
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> sqlite-users@sqlite.org
> http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
>
--
D. Richard Hipp
d...@sqlite.org
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