Hi everybody.
My name is Gilberto, I use the next tools:
- Flex: 2.5.35
- Bison: 3.0.2 ( C++ )
- OS: Linux 3.5.0-44-generic #67~precise1-Ubuntu SMP Wed Nov 13
16:16:57 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
- GCC: gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
I use Bison for C++, I get the following problem when I compile with gcc,
I want to know if I am doing something wrong or it is a bug. It seems that
bison duplicates the definition and declaration of a function:
g++ -o parser location.hh position.hh rcss_parser.tab.cc lex.yy.c
rcss_parser_driver.cpp -lfl
In file included from rcss_parser_driver.h:16:0,
from rcss_parser.y:15:
rcss_parser.tab.hh:583:3: error:
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’ cannot be overloaded
rcss_parser.tab.hh:579:3: error: with
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’
rcss_parser.tab.hh:1896:3: error: redefinition of
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’
rcss_parser.tab.hh:1882:3: error:
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’ previously declared here
In file included from rcss_lexer.l:28:0:
rcss_parser.tab.hh:583:3: error:
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’ cannot be overloaded
rcss_parser.tab.hh:579:3: error: with
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’
rcss_parser.tab.hh:1896:3: error: redefinition of
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’
rcss_parser.tab.hh:1882:3: error:
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’ previously declared here
In file included from rcss_parser_driver.h:16:0,
from rcss_parser_driver.cpp:11:
rcss_parser.tab.hh:583:3: error:
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’ cannot be overloaded
rcss_parser.tab.hh:579:3: error: with
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’
rcss_parser.tab.hh:1896:3: error: redefinition of
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’
rcss_parser.tab.hh:1882:3: error:
‘yy::RcssParser::basic_symbol<Base>::basic_symbol(typename Base::kind_type,
Playmode, const location_type&)’ previously declared here
I use variants, the next is on my grammar file:
...
%skeleton "lalr1.cc"
%require "3.0" /* The grammar is made to work on Bison
3.0 */
%language "C++" /* The output will be a c++ class */
%debug /* Debug mode */
%locations /* Gives an interface to access location
information */
%defines /* */
%define parser_class_name {RcssParser} /* Name of the class generated
by Bison */
%define api.token.constructor /* */
%define api.value.type variant /* Use a variant-based interface instead
of unions */
%define parse.assert /* Enable assertions */
...
%token <Playmode> BEFORE_KICK_OFF
%token <Playmode> TIME_OVER
%token <Playmode> PLAY_ON
...
%type < Playmode > playmode
...
%%
...
init: INIT side NUMBER playmode { driver.h_init_finished( $2, $3,
$4 ); }
;
playmode: BEFORE_KICK_OFF { $$ = $1; }
| TIME_OVER { $$ = $1; }
| PLAY_ON { $$ = $1; }
;
And the tokens are defined as follows on my lexer file:
...
"before_kick_off" { return yy::RcssParser::make_BEFORE_KICK_OFF(
BeforeKickOff, loc); }
"time_over" { return yy::RcssParser::make_TIME_OVER( TimeOver,
loc); }
"play_on" { return yy::RcssParser::make_PLAY_ON( PlayOn, loc); }
...
I can attach the whole project if you want.
Thanks in advance for the help.
