Hi folks. My friend Nicholas and I are trying to make a compiler for a
simpler language(just expressions by now) with flex and bison using C++.
Using
https://www.gnu.org/software/bison/manual/html_node/A-Complete-C_002b_002b-Example.html
as a guide, we code the repository below, but when We try
bison -d parser.yy -o parser.cc
lex scanner.l
g++ lex.yy.cc parser.cc main.cc -o cppimp
Give us the error in the file
repository : https://github.com/nicholas-barcelos/Cppimp
We try to change headers of place, move definitions of class, but nothing
work. What are we making wrong? Thanks in advance
Commands
bison -d parser.yy -o parser.cc
lex scanner.l
g++ *.cc -o cppimp
Log
driver.cc: In member function ‘int driver::parse(const string&)’:
driver.cc:18:19: error: no match for call to ‘(yy::parser) ()’
int res = parse();
^
lex.yy.cc: In function ‘yy::parser::symbol_type yylex(driver&)’:
lex.yy.cc:667:9: error: ‘yy_init’ was not declared in this scope
if ( !(yy_init) )
^~~~~~~
lex.yy.cc:667:9: note: suggested alternative: ‘yy_nxt’
if ( !(yy_init) )
^~~~~~~
yy_nxt
lex.yy.cc:675:11: error: ‘yy_start’ was not declared in this scope
if ( ! (yy_start) )
^~~~~~~~
lex.yy.cc:675:11: note: suggested alternative: ‘yy_act’
if ( ! (yy_start) )
^~~~~~~~
yy_act
lex.yy.cc:678:10: error: ‘yyin’ was not declared in this scope
if ( ! yyin )
^~~~
lex.yy.cc:685:10: error: ‘yyout’ was not declared in this scope
if ( ! yyout )
^~~~~
lex.yy.cc:685:10: note: suggested alternative: ‘yy_act’
if ( ! yyout )
^~~~~
yy_act
lex.yy.cc:317:30: error: ‘yy_buffer_stack’ was not declared in this scope
#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
^
lex.yy.cc:692:10: note: in expansion of macro ‘YY_CURRENT_BUFFER’
if ( ! YY_CURRENT_BUFFER ) {
^~~~~~~~~~~~~~~~~
lex.yy.cc:317:30: note: suggested alternative: ‘yy_buffer_state’
#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
^
lex.yy.cc:692:10: note: in expansion of macro ‘YY_CURRENT_BUFFER’
if ( ! YY_CURRENT_BUFFER ) {
^~~~~~~~~~~~~~~~~
lex.yy.cc:318:48: error: ‘yy_buffer_stack_top’ was not declared in this scope
? (yy_buffer_stack)[(yy_buffer_stack_top)] \
^
lex.yy.cc:692:10: note: in expansion of macro ‘YY_CURRENT_BUFFER’
if ( ! YY_CURRENT_BUFFER ) {
^~~~~~~~~~~~~~~~~
lex.yy.cc:318:48: note: suggested alternative: ‘yy_buffer_state’
? (yy_buffer_stack)[(yy_buffer_stack_top)] \
^
lex.yy.cc:692:10: note: in expansion of macro ‘YY_CURRENT_BUFFER’
if ( ! YY_CURRENT_BUFFER ) {
^~~~~~~~~~~~~~~~~
lex.yy.cc:693:4: error: ‘yyensure_buffer_stack’ was not declared in this scope
yyensure_buffer_stack ();
^~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:693:4: note: suggested alternative: ‘yy_buffer_state’
yyensure_buffer_stack ();
^~~~~~~~~~~~~~~~~~~~~
yy_buffer_state
lex.yy.cc:695:23: error: ‘yyin’ was not declared in this scope
yy_create_buffer( yyin, YY_BUF_SIZE );
^~~~
lex.yy.cc:695:5: error: ‘yy_create_buffer’ was not declared in this scope
yy_create_buffer( yyin, YY_BUF_SIZE );
^~~~~~~~~~~~~~~~
lex.yy.cc:695:5: note: suggested alternative: ‘yy_new_buffer’
yy_create_buffer( yyin, YY_BUF_SIZE );
^~~~~~~~~~~~~~~~
yy_new_buffer
lex.yy.cc:698:3: error: ‘yy_load_buffer_state’ was not declared in this scope
yy_load_buffer_state( );
^~~~~~~~~~~~~~~~~~~~
lex.yy.cc:698:3: note: suggested alternative: ‘yy_buffer_state’
yy_load_buffer_state( );
^~~~~~~~~~~~~~~~~~~~
yy_buffer_state
lex.yy.cc:719:12: error: ‘yy_c_buf_p’ was not declared in this scope
yy_cp = (yy_c_buf_p);
^~~~~~~~~~
lex.yy.cc:719:12: note: suggested alternative: ‘yy_bp’
yy_cp = (yy_c_buf_p);
^~~~~~~~~~
yy_bp
lex.yy.cc:722:13: error: ‘yy_hold_char’ was not declared in this scope
*yy_cp = (yy_hold_char);
^~~~~~~~~~~~
lex.yy.cc:722:13: note: suggested alternative: ‘__u_char’
*yy_cp = (yy_hold_char);
^~~~~~~~~~~~
__u_char
lex.yy.cc:730:23: error: ‘yy_start’ was not declared in this scope
yy_current_state = (yy_start);
^~~~~~~~
lex.yy.cc:730:23: note: suggested alternative: ‘yy_act’
yy_current_state = (yy_start);
^~~~~~~~
yy_act
lex.yy.cc:737:6: error: ‘yy_last_accepting_state’ was not declared in this scope
(yy_last_accepting_state) = yy_current_state;
^~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:738:6: error: ‘yy_last_accepting_cpos’ was not declared in this scope
(yy_last_accepting_cpos) = yy_cp;
^~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:750:12: error: ‘yy_last_accepting_cpos’ was not declared in this scope
yy_cp = (yy_last_accepting_cpos);
^~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:751:23: error: ‘yy_last_accepting_state’ was not declared in this
scope
yy_current_state = (yy_last_accepting_state);
^~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:365:20: error: ‘yytext’ was not declared in this scope
#define yytext_ptr yytext
^
lex.yy.cc:380:3: note: in expansion of macro ‘yytext_ptr’
(yytext_ptr) = yy_bp; \
^~~~~~~~~~
lex.yy.cc:757:3: note: in expansion of macro ‘YY_DO_BEFORE_ACTION’
YY_DO_BEFORE_ACTION;
^~~~~~~~~~~~~~~~~~~
lex.yy.cc:365:20: note: suggested alternative: ‘yylex’
#define yytext_ptr yytext
^
lex.yy.cc:380:3: note: in expansion of macro ‘yytext_ptr’
(yytext_ptr) = yy_bp; \
^~~~~~~~~~
lex.yy.cc:757:3: note: in expansion of macro ‘YY_DO_BEFORE_ACTION’
YY_DO_BEFORE_ACTION;
^~~~~~~~~~~~~~~~~~~
lex.yy.cc:764:8: error: ‘yy_flex_debug’ was not declared in this scope
if ( yy_flex_debug )
^~~~~~~~~~~~~
lex.yy.cc:579:14: error: ‘LexerOutput’ was not declared in this scope
#define ECHO LexerOutput( yytext, yyleng )
^
scanner.l:55:1: note: in expansion of macro ‘ECHO’
^
lex.yy.cc:323:35: error: ‘yy_buffer_stack’ was not declared in this scope
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:902:8: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:323:35: note: suggested alternative: ‘yy_buffer_state’
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:902:8: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:323:53: error: ‘yy_buffer_stack_top’ was not declared in this scope
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:902:8: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:323:53: note: suggested alternative: ‘yy_buffer_state’
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:902:8: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:913:5: error: ‘yy_n_chars’ was not declared in this scope
(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
^~~~~~~~~~
lex.yy.cc:913:5: note: suggested alternative: ‘__u_char’
(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
^~~~~~~~~~
__u_char
lex.yy.cc:917:46: error: ‘yyin’ was not declared in this scope
YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin.rdbuf();
^~~~
lex.yy.cc:323:35: error: ‘yy_buffer_stack’ was not declared in this scope
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:929:25: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:323:35: note: suggested alternative: ‘yy_buffer_state’
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:929:25: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:323:53: error: ‘yy_buffer_stack_top’ was not declared in this scope
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:929:25: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:323:53: note: suggested alternative: ‘yy_buffer_state’
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
^
lex.yy.cc:929:25: note: in expansion of macro ‘YY_CURRENT_BUFFER_LVALUE’
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
^~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:929:62: error: ‘yy_n_chars’ was not declared in this scope
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
^~~~~~~~~~
lex.yy.cc:929:62: note: suggested alternative: ‘__u_char’
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
^~~~~~~~~~
__u_char
lex.yy.cc:935:23: error: ‘yy_get_previous_state’ was not declared in this scope
yy_current_state = yy_get_previous_state( );
^~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:935:23: note: suggested alternative: ‘yy_current_state’
yy_current_state = yy_get_previous_state( );
^~~~~~~~~~~~~~~~~~~~~
yy_current_state
lex.yy.cc:946:20: error: ‘yy_try_NUL_trans’ was not declared in this scope
yy_next_state = yy_try_NUL_trans( yy_current_state );
^~~~~~~~~~~~~~~~
lex.yy.cc:967:17: error: ‘yy_get_next_buffer’ was not declared in this scope
else switch ( yy_get_next_buffer( ) )
^~~~~~~~~~~~~~~~~~
lex.yy.cc:967:17: note: suggested alternative: ‘yy_new_buffer’
else switch ( yy_get_next_buffer( ) )
^~~~~~~~~~~~~~~~~~
yy_new_buffer
lex.yy.cc:971:6: error: ‘yy_did_buffer_switch_on_eof’ was not declared in this
scope
(yy_did_buffer_switch_on_eof) = 0;
^~~~~~~~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:973:10: error: ‘yywrap’ was not declared in this scope
if ( yywrap( ) )
^~~~~~
lex.yy.cc:973:10: note: suggested alternative: ‘yy_bp’
if ( yywrap( ) )
^~~~~~
yy_bp
lex.yy.cc:172:32: error: ‘yyin’ was not declared in this scope
#define YY_NEW_FILE yyrestart( yyin )
^
lex.yy.cc:993:7: note: in expansion of macro ‘YY_NEW_FILE’
YY_NEW_FILE;
^~~~~~~~~~~
lex.yy.cc:172:21: error: ‘yyrestart’ was not declared in this scope
#define YY_NEW_FILE yyrestart( yyin )
^
lex.yy.cc:993:7: note: in expansion of macro ‘YY_NEW_FILE’
YY_NEW_FILE;
^~~~~~~~~~~
lex.yy.cc:1002:24: error: ‘yy_get_previous_state’ was not declared in this scope
yy_current_state = yy_get_previous_state( );
^~~~~~~~~~~~~~~~~~~~~
lex.yy.cc:1002:24: note: suggested alternative: ‘yy_current_state’
yy_current_state = yy_get_previous_state( );
^~~~~~~~~~~~~~~~~~~~~
yy_current_state
lex.yy.cc:615:29: error: ‘LexerError’ was not declared in this scope
#define YY_FATAL_ERROR(msg) LexerError( msg )
^
lex.yy.cc:1022:3: note: in expansion of macro ‘YY_FATAL_ERROR’
YY_FATAL_ERROR(
^~~~~~~~~~~~~~
lex.yy.cc:615:29: note: suggested alternative: ‘strerror’
#define YY_FATAL_ERROR(msg) LexerError( msg )
^
lex.yy.cc:1022:3: note: in expansion of macro ‘YY_FATAL_ERROR’
YY_FATAL_ERROR(
^~~~~~~~~~~~~~
scanner.l: In member function ‘void driver::scan_begin()’:
scanner.l:70:5: error: ‘yy_flex_debug’ was not declared in this scope
if (file.empty () || file == "-")
^~~~~~~~~~~~~
scanner.l:72:9: error: ‘yyin’ was not declared in this scope
else if (!(yyin = fopen (file.c_str (), "r")))
^~~~
scanner.l:73:16: error: ‘yyin’ was not declared in this scope
{
^
scanner.l: In member function ‘void driver::scan_end()’:
scanner.l:83:11: error: ‘yyin’ was not declared in this scope
}
^
parser.cc: In member function ‘virtual int yy::parser::parse()’:
parser.cc:446:38: error: ‘yylex’ was not declared in this scope
symbol_type yylookahead (yylex (drv));
^~~~~
parser.cc:446:38: note: suggested alternative: ‘yylen’
symbol_type yylookahead (yylex (drv));
^~~~~
yylen
parser.yy:53:7: error: invalid use of incomplete type ‘class driver’
| exp { drv.result = $1; };
^~~
In file included from parser.cc:46:0:
parser.yy:12:11: note: forward declaration of ‘class driver’
class driver;
^~~~~~
parser.tab.cc: In member function ‘virtual int yy::parser::parse()’:
parser.tab.cc:446:38: error: ‘yylex’ was not declared in this scope
symbol_type yylookahead (yylex (drv));
^~~~~
parser.tab.cc:446:38: note: suggested alternative: ‘yylen’
symbol_type yylookahead (yylex (drv));
^~~~~
yylen
parser.yy:53:7: error: invalid use of incomplete type ‘class driver’
| exp { drv.result = $1; };
^~~
In file included from parser.tab.cc:46:0:
parser.yy:12:11: note: forward declaration of ‘class driver’
class driver;
^~~~~~
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