Re: Memory Leak due to strdup even after using %destructor

[Hans Aberg]

On 4 Feb 2009, at 07:40, <address@hidden> <address@hidden 
> wrote:

>            I am new to bison. I got a memory leak. Leak is due to the
> strdup in lex file
>
> astr         [-a-zA-Z0-9_\.\/\,\<]*
>
>
> {astr}   {
>                yylval.text = strdup( (char *)yytext );
>                return ASTR;
>        }
>
>            I have added
>
> %destructor  { free($$); }   ASTR
>
>            but still i am getting memory leaks(valgrind).
>
> can anyone help me how to solve this ???????

%destructor only makes clean-up in the case of errors. So you still  
need to make normal cleanup in the actions. Or use a language which  
can do it, like C++ or Java.

  Hans