FYI: examples/calc++/ HELP

[Wang Yige]

Hi,

I search the article on Google 
(http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00070.html). 
and copy the files : calc++.cc ,calc++-driver.cc ,calc++-driver.hh 
,calc++-parser.yy, calc++-scanner.ll .

Then , I make them with the makefile you provided:
        flex -o calc++-scanner.cc calc++-scanner.ll
        bison -o calc++-parser.cc calc++-parser.yy
        g++ -o calc++ calc++.cc calc++-driver.cc calc++-parser.cc 
alc++-scanner.cc

when it runs the "g++ -o calc++ calc++.cc calc++-driver.cc calc++-parser.cc 
alc++-scanner.cc",the following error & warnning occur(HP-Unix & 
bison-2.3):
-------------------------------------------------------
g++ -o calc++ calc++.cc calc++-driver.cc calc++-parser.cc calc++-scanner.cc
calc++-parser.cc: In member function `virtual int 
yy::calcxx_parser::parse()':
calc++-parser.cc:328: cannot convert `yy::calcxx_parser::semantic_type*' to 
`
  YYSTYPE*' for argument `1' to `int yylex(YYSTYPE*, yy::location*,
  calcxx_driver&)'
calc++-scanner.ll:18:1: warning: "YY_USER_ACTION" redefined
calc++-scanner.cc:525:1: warning: this is the location of the previous 
definition
calc++-scanner.ll: In function `int yylex(YYSTYPE*, yy::location*,
  calcxx_driver&)':
calc++-scanner.ll:27: invalid use of undefined type `union YYSTYPE'
calc++-driver.hh:8: forward declaration of `union YYSTYPE'
calc++-scanner.ll:28: invalid use of undefined type `union YYSTYPE'
calc++-driver.hh:8: forward declaration of `union YYSTYPE'
make: *** [calc++] Error 1
-------------------------------------------------------

Would you like to help me to check the source file and make it correctly ?

Any reply is appreciated!

Best Regards,
Wang Yige

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