error: "integer out of range '$3' "yacc file
I'm getting a error in my yacc programme .
the error is "integer out of range in '$3' "
i have attached the code please check it and help me.
it is in the line 77
ifst: 'if' '(' expr ')' 'then' '{' expr ';' '}' else '{' expr ';' '}' {$$=makeifnode("if",$3,$7,$12);}//ERROR IS SHOWING HERE
;
Code:
%{
#include <stdio.h>
#include <stdlib.h>
#include "syntree.h"
#include "symtab.h"
//#include "globals.h"
#define NODE struct node*
NODE makeleaf(int);
NODE makebleaf(char*);
NODE makeid(struct table*);
NODE makenode(char*, NODE, NODE);
NODE makeifnode(char* a, NODE, NODE, NODE);
int yylex(void);
void yyerror(char *);
void protraverse(struct node* a);
void evaluate(struct node* a);
%}
%union
{
int num;
//char arr[10];
struct node* nodeptr;
struct table* tptr;
};
%start prog
%token <num> NUMBER
%token <tptr> ID
%type <nodeptr> expr stmtlist assignment stmt reads writes ifst
%right '='
%left '<' '>' GE LE NE EE
%left '+' '-'
%left '*' '/'
%%
prog: declsec '{' stmtlist '}' {protraverse($3);printf("\n");evaluate($3);exit(0);}
;
declsec: 'decl' decllist 'enddecl'
;
decllist: decl
|decl decllist
;
decl: type idlist ';'
;
type: 'int'
|'bool'
;
idlist: ID
|ID ',' idlist
;
stmtlist: stmt stmtlist {$$=makenode("s",$1,$2);}
| {$$=NULL;}
;
stmt: assignment {$$=makenode("s",$1,NULL);}
|reads {$$=makenode("s",$1,NULL);}
|writes {$$=makenode("s",$1,NULL);}
|ifst {$$=makenode("s",$1,NULL);
;
assignment: ID '=' expr ';' {$$=makenode("=",makeid($1),$3);}
;
reads: 'read' '(' ID ')' ';' {$$=makenode("r",makeid($3),NULL);}
;
writes: 'write' '(' expr ')' ';' {$$=makenode("w",$3,NULL);}
;
ifst: 'if' '(' expr ')' 'then' '{' expr ';' '}' else '{' expr ';' '}' {$$=makeifnode("if",$3,$7,$12);}//ERROR IS SHOWING HERE
;
expr: NUMBER {$$=makeleaf($1);}
|ID {$$=makeid($1);}
|'true' {$$=makebleaf("true");}
|'false' {$$=makebleaf("false");}
|expr '+' expr {$$=makenode("+",$1,$3);}
|expr '-' expr {$$=makenode("-",$1,$3);}
|expr '*' expr {$$=makenode("*",$1,$3);}
|expr '/' expr {$$=makenode("/",$1,$3);}
|expr LE expr {$$=makelnode("<=",$1,$3);}
|expr GE expr {$$=makelnode(">=",$1,$3);}
|expr '>' expr {$$=makelnode(">",$1,$3);}
|expr '<' expr {$$=makelnode("<",$1,$3);}
|expr NE expr {$$=makelnode("!=",$1,$3);}
|expr EE expr {$$=makelnode("==",$1,$3);}
;
%%
void yyerror(char *s)
{
fprintf(stderr, "%s\n", s);
}
int main(void)
{
yyparse();
return 0;
}
|
