Programming Forums > Application Development > C++

JD-Salinger · Apr 28th, 2008, 6:36 AM

i am doing this program which is a parser calculator but when i compile it there's an error which is "FunctionTable funtab has initializer but incomplete type", i am using codeblocks 8.02, and my program is kinda long. I think my algorithms are correct and the only problem is in the syntax or how i coded it... here's a snipet of the main function

 c++ Syntax (Toggle Plain Text) 
#include "Parser.h"
 
const int maxBuf=100;
const int maxSymbols=40;
 
 
int main()
{
 
 
    char buf[maxBuf];
    Status status;
    SymbolTable symTab(maxSymbols);
    FunctionTable funTab(symTab,funArr);
    Store store(maxSymbols,symTab);
 
    do
    {
        cout<<">"; //prompt
        cin.getline(buf,maxBuf);
        Scanner scanner(buf);
        Parser parser(scanner,store,funTab,symTab);
        status=parser.Eval();
    }while(status!=stQuit);
 
    return 0;
 
}
#include "Parser.h"

const int maxBuf=100;
const int maxSymbols=40;


int main()
{


    char buf[maxBuf];
    Status status;
    SymbolTable symTab(maxSymbols);
    FunctionTable funTab(symTab,funArr);
    Store store(maxSymbols,symTab);

    do
    {
        cout<<">"; //prompt
        cin.getline(buf,maxBuf);
        Scanner scanner(buf);
        Parser parser(scanner,store,funTab,symTab);
        status=parser.Eval();
    }while(status!=stQuit);

    return 0;

}

its compiled as a one project, thats why it only had one header file, it is composed of 9 source files and 8 header files. i suppose that the problem is in the function table source file or function table header file...

FunTab.h

 c++ Syntax (Toggle Plain Text) 
#include <cmath>
class SymbolTable; //forward declaration
 
typedef double (*PtrFun) (double);
const int maxIdFun = 16;
 
class FunctionEntry
{
    public:
        PtrFun pFun;
        char* strFun;
};
 
 
extern FunctionEntry funArr[];
 
class FunctionTable
{
    public:
        FunctionTable(SymbolTable& symTab,FunctionEntry funArr[]);
        int Size() const {return _size;}
        PtrFun GetFun (int id) {return _pFun[id];}
    private:
        PtrFun _pFun[maxIdFun];
        int    _size;
};
#include <cmath>
class SymbolTable; //forward declaration

typedef double (*PtrFun) (double);
const int maxIdFun = 16;

class FunctionEntry
{
    public:
        PtrFun pFun;
        char* strFun;
};


extern FunctionEntry funArr[];

class FunctionTable
{
    public:
        FunctionTable(SymbolTable& symTab,FunctionEntry funArr[]);
        int Size() const {return _size;}
        PtrFun GetFun (int id) {return _pFun[id];}
    private:
        PtrFun _pFun[maxIdFun];
        int    _size;
};

FunTab.cpp

 c++ Syntax (Toggle Plain Text) 
#include "SymTab.h"
#include "FunTab.h"
 
#include <cmath>
#include <cstring>
#include <cassert>
using namespace std;
 
double CoTan(double x)
{
    double y=tan(x);
    if(y==0)
    {
        cout<<"cotan of "<<x<<" undefined\n";
        return HUGE_VAL;
    }
    return 1.0/y;
};
 
 
FunctionEntry funArr [maxIdFun] =
{
    log,  "log",
    log10,"log10",
    exp,  "exp",
    sqrt, "sqrt",
    sin,  "sin",
    cos,  "cos",
    tan,  "tan",
    CoTan,"cotan",
    sinh, "sinh",
    cosh, "cosh",
    tanh, "tanh",
    asin, "asin",
    acos, "acos",
    atan, "atan",
    0,    ""
};
 
 
FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry funArr[])
    :_size(0)
{
    for(int i=0; i<maxIdFun; ++i)
    {
        int len=strlen(funArr[i].strFun);
        if(len==0)
            break;
        _pFun[i]=funArr[i].pFun;
        cout<< funArr[i].strFun<<endl;
        int j=symTab.ForceAdd(funArr[i].strFun,len);
        assert(i==j);
        ++_size;
    }
}
#include "SymTab.h"
#include "FunTab.h"

#include <cmath>
#include <cstring>
#include <cassert>
using namespace std;

double CoTan(double x)
{
    double y=tan(x);
    if(y==0)
    {
        cout<<"cotan of "<<x<<" undefined\n";
        return HUGE_VAL;
    }
    return 1.0/y;
};


FunctionEntry funArr [maxIdFun] =
{
    log,  "log",
    log10,"log10",
    exp,  "exp",
    sqrt, "sqrt",
    sin,  "sin",
    cos,  "cos",
    tan,  "tan",
    CoTan,"cotan",
    sinh, "sinh",
    cosh, "cosh",
    tanh, "tanh",
    asin, "asin",
    acos, "acos",
    atan, "atan",
    0,    ""
};


FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry funArr[])
    :_size(0)
{
    for(int i=0; i<maxIdFun; ++i)
    {
        int len=strlen(funArr[i].strFun);
        if(len==0)
            break;
        _pFun[i]=funArr[i].pFun;
        cout<< funArr[i].strFun<<endl;
        int j=symTab.ForceAdd(funArr[i].strFun,len);
        assert(i==j);
        ++_size;
    }
}

should i provide a Link to the whole program? thank you very much...

Jabo · Apr 28th, 2008, 12:41 PM

 c++ Syntax (Toggle Plain Text) 
int Size() const {return _size;}
int Size() const {return _size;}

This doesn't look right to me, you have the const keyword without a name.

Jessehk · Apr 28th, 2008, 4:19 PM

Quote:

Originally Posted by Jabo

 c++ Syntax (Toggle Plain Text) 
int Size() const {return _size;}
int Size() const {return _size;}

This doesn't look right to me, you have the const keyword without a name.

Jabo, the const there indicates that when the method is called, it does not modify the object.

mbd · Apr 28th, 2008, 5:50 PM

zip up the source and attach it

JD-Salinger · Apr 28th, 2008, 8:23 PM

Thanks for the reply: here are the files
rs link:
PARSER.ZIP

Cache · Apr 29th, 2008, 2:58 AM

You need to:

(Toggle Plain Text)

#include "Scanner.h"
#include "SymTab.h"
#include "FunTab.h"
#include "Store.h"

in either Parser.h or main.cpp

#include <cassert> in PTree.h

And there's an error in SymTab.cpp at line 54 about calling strcmp with 3 arguments. No doubt you meant to usestrncmp.

JD-Salinger · Apr 29th, 2008, 5:28 AM

Quote:

Originally Posted by Cache

You need to:

(Toggle Plain Text)

#include "Scanner.h"
#include "SymTab.h"
#include "FunTab.h"
#include "Store.h"

in either Parser.h or main.cpp

#include <cassert> in PTree.h

And there's an error in SymTab.cpp at line 54 about calling strcmp with 3 arguments. No doubt you meant to usestrncmp.

THanks a lot cache!!!! I am so STUPID!!!!!!!!!!!!!!!!!!! whoooo!!!! i just need to include those files.... and i checked the scanner.h header file... there's still some error in the ACCEPT method ill give it another check... thanks again... a big help

Apr 28th, 2008, 6:36 AM	#1
JD-Salinger Unknown Join Date: Apr 2008 Location: unknown Posts: 21 Rep Power: 0	initilizer incmplete type i am doing this program which is a parser calculator but when i compile it there's an error which is "FunctionTable funtab has initializer but incomplete type", i am using codeblocks 8.02, and my program is kinda long. I think my algorithms are correct and the only problem is in the syntax or how i coded it... here's a snipet of the main function c++ Syntax (Toggle Plain Text) #include "Parser.h" const int maxBuf=100; const int maxSymbols=40; int main() { char buf[maxBuf]; Status status; SymbolTable symTab(maxSymbols); FunctionTable funTab(symTab,funArr); Store store(maxSymbols,symTab); do { cout<<">"; //prompt cin.getline(buf,maxBuf); Scanner scanner(buf); Parser parser(scanner,store,funTab,symTab); status=parser.Eval(); }while(status!=stQuit); return 0; } #include "Parser.h" const int maxBuf=100; const int maxSymbols=40; int main() { char buf[maxBuf]; Status status; SymbolTable symTab(maxSymbols); FunctionTable funTab(symTab,funArr); Store store(maxSymbols,symTab); do { cout<<">"; //prompt cin.getline(buf,maxBuf); Scanner scanner(buf); Parser parser(scanner,store,funTab,symTab); status=parser.Eval(); }while(status!=stQuit); return 0; } its compiled as a one project, thats why it only had one header file, it is composed of 9 source files and 8 header files. i suppose that the problem is in the function table source file or function table header file... FunTab.h c++ Syntax (Toggle Plain Text) #include <cmath> class SymbolTable; //forward declaration typedef double (PtrFun) (double); const int maxIdFun = 16; class FunctionEntry { public: PtrFun pFun; char strFun; }; extern FunctionEntry funArr[]; class FunctionTable { public: FunctionTable(SymbolTable& symTab,FunctionEntry funArr[]); int Size() const {return _size;} PtrFun GetFun (int id) {return _pFun[id];} private: PtrFun _pFun[maxIdFun]; int _size; }; #include <cmath> class SymbolTable; //forward declaration typedef double (PtrFun) (double); const int maxIdFun = 16; class FunctionEntry { public: PtrFun pFun; char strFun; }; extern FunctionEntry funArr[]; class FunctionTable { public: FunctionTable(SymbolTable& symTab,FunctionEntry funArr[]); int Size() const {return _size;} PtrFun GetFun (int id) {return _pFun[id];} private: PtrFun _pFun[maxIdFun]; int _size; }; FunTab.cpp c++ Syntax (Toggle Plain Text) #include "SymTab.h" #include "FunTab.h" #include <cmath> #include <cstring> #include <cassert> using namespace std; double CoTan(double x) { double y=tan(x); if(y==0) { cout<<"cotan of "<<x<<" undefined\n"; return HUGE_VAL; } return 1.0/y; }; FunctionEntry funArr [maxIdFun] = { log, "log", log10,"log10", exp, "exp", sqrt, "sqrt", sin, "sin", cos, "cos", tan, "tan", CoTan,"cotan", sinh, "sinh", cosh, "cosh", tanh, "tanh", asin, "asin", acos, "acos", atan, "atan", 0, "" }; FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry funArr[]) :_size(0) { for(int i=0; i<maxIdFun; ++i) { int len=strlen(funArr[i].strFun); if(len==0) break; _pFun[i]=funArr[i].pFun; cout<< funArr[i].strFun<<endl; int j=symTab.ForceAdd(funArr[i].strFun,len); assert(i==j); ++_size; } } #include "SymTab.h" #include "FunTab.h" #include <cmath> #include <cstring> #include <cassert> using namespace std; double CoTan(double x) { double y=tan(x); if(y==0) { cout<<"cotan of "<<x<<" undefined\n"; return HUGE_VAL; } return 1.0/y; }; FunctionEntry funArr [maxIdFun] = { log, "log", log10,"log10", exp, "exp", sqrt, "sqrt", sin, "sin", cos, "cos", tan, "tan", CoTan,"cotan", sinh, "sinh", cosh, "cosh", tanh, "tanh", asin, "asin", acos, "acos", atan, "atan", 0, "" }; FunctionTable::FunctionTable(SymbolTable& symTab,FunctionEntry funArr[]) :_size(0) { for(int i=0; i<maxIdFun; ++i) { int len=strlen(funArr[i].strFun); if(len==0) break; _pFun[i]=funArr[i].pFun; cout<< funArr[i].strFun<<endl; int j=symTab.ForceAdd(funArr[i].strFun,len); assert(i==j); ++_size; } } should i provide a Link to the whole program? thank you very much... __________________ ------------------------------------------------------------------------- I thought what I'd Do was, I'd pretend to be one of those deaf mutes ------------------------------------------------------------------------

Apr 28th, 2008, 12:41 PM	#2
Jabo Not a user? Join Date: Sep 2007 Posts: 190 Rep Power: 1	Re: initilizer incmplete type c++ Syntax (Toggle Plain Text) int Size() const {return _size;} int Size() const {return _size;} This doesn't look right to me, you have the const keyword without a name.

Apr 28th, 2008, 5:50 PM	#4
mbd Programmer Join Date: Nov 2007 Posts: 75 Rep Power: 1	Re: initilizer incmplete type zip up the source and attach it

Apr 28th, 2008, 8:23 PM	#5
JD-Salinger Unknown Join Date: Apr 2008 Location: unknown Posts: 21 Rep Power: 0	Re: initilizer incmplete type Thanks for the reply: here are the files rs link: PARSER.ZIP __________________ ------------------------------------------------------------------------- I thought what I'd Do was, I'd pretend to be one of those deaf mutes ------------------------------------------------------------------------

Apr 29th, 2008, 2:58 AM	#6
Cache Hobbyist Join Date: Sep 2005 Posts: 256 Rep Power: 3	Re: initilizer incmplete type You need to: (Toggle Plain Text) #include "Scanner.h" #include "SymTab.h" #include "FunTab.h" #include "Store.h" #include "Scanner.h" #include "SymTab.h" #include "FunTab.h" #include "Store.h" in either Parser.h or main.cpp `#include <cassert>` in PTree.h And there's an error in SymTab.cpp at line 54 about calling `strcmp` with 3 arguments. No doubt you meant to use`strncmp`.

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Programming Forums > Application Development > C++

initilizer incmplete type