Akim Demaille a57e74a5bf style: prefer symbolic values rather than litterals ...

Instead of

    #define YYPACT_NINF -130
    #define yypact_value_is_default(Yystate) \
      (!!((Yystate) == (-130)))

generate

    #define YYPACT_NINF (-130)
    #define yypact_value_is_default(Yyn) \
      ((Yyn) == YYPACT_NINF)

* data/skeletons/c.m4 (b4_table_value_equals): Add support for $4.
* data/skeletons/glr.c, data/skeletons/yacc.c: Use it.
Also, use shorter macro argument names, the name of the macro is clear
enough.

2019-09-30 07:25:56 +02:00

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