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Fix an error for initialization within YY_INITIAL_VALUE() with C++ #443

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Jun 17, 2024
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Fix an error for initialization within YY_INITIAL_VALUE() with C++ #443

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4 changes: 4 additions & 0 deletions template/bison/yacc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1475,7 +1475,11 @@ int yychar;
/* The semantic value of the lookahead symbol. */
/* Default value used for initialization, for pacifying older GCCs
or non-GCC compilers. */
#ifdef __cplusplus
static const YYSTYPE yyval_default = YY_INITIAL_VALUE(YYSTYPE());
#else
YY_INITIAL_VALUE (static const YYSTYPE yyval_default;)
#endif
YYSTYPE yylval YY_INITIAL_VALUE (= yyval_default);

/* Location data for the lookahead symbol. */
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