Re: Action blocks may not refer to their own value with number

[akim]

On Sat, Oct 19, 2002 at 12:29:02PM +0200, Henrik Grubbstr?m wrote:
> Found another bug when backporting bison 1.50 kludges:
> 
> In bison 1.50 and 1.75 the following construct is no longer accepted:
> 
> %union{
>   int field;
> %}
> 
> %type <field> nonterm
> 
> %%
> 
> nonterm: { $<field>1 = 0; } ;
> 
> %%
> 
> The following error is produced:
> 
> foo.yacc:9.10-20: invalid value: $1
> 
> It works fine in bison 1.35.
> 
> The obvious workaround is to refer to the value with $$.

I disagree: this is the obvious fix to the action.  I hope you never
relied on this code, coz you can be sure it was never properly honored.
Not even by pre 1.50, they were just buggy and unable to report the error.