template under gcc version 3.3.2

template under gcc version 3.3.2

[Morten.Gulbrandsen]

hello,

I'm trying to compile this piece of code from here,

http://www.josuttis.com/cppbook/tmpl/stest5.cpp.html

instead of  stack5.hpp   I inserted 

stack5decl.hpp <http://www.josuttis.com/cppbook/tmpl/stack5decl.hpp.html>

stack5assign.hpp 
<http://www.josuttis.com/cppbook/tmpl/stack5assign.hpp.html>



Please help.

I'm using  gcc under solaris,

bash-2.05$ g++  -v
Reading specs from /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/specs
Configured with: ../gcc-3.3.2/configure --prefix=/opt/sfw/gcc-3 
--with-ld=/usr/ccs/bin/ld --with-as=/usr/ccs/bin/as --without-gnu-ld 
--without-gnu-as --enable-shared
Thread model: posix
gcc version 3.3.2

 





g++ -ansi -pedantic -Wall -o stest5_test_00.out stest5_test_00.cpp -L 
/opt/sfw/gcc-3/lib/ -R /opt/sfw/gcc-3/lib/ -lstdc++
stest5_test_00.cpp:11: error: syntax error before `;' token



#include <iostream>
#include <string>
#include <cstdlib>

// #include "stack5.hpp"


template <typename T>
class Stack {
  private:
    std::deque<T> elems;   // elements

  public:
    void push(const T&);   // store new top element
    void pop();            // remove top element
    T top() const;         // return top element
    bool empty() const {   // return whether the stack is empty
        return elems.empty();
    }

    // assign stack of elements of type T2
    template <typename T2>
    Stack<T>& operator= (Stack<T2> const&);
};




template <typename T>
 template <typename T2>
Stack<T>& Stack<T>::operator= (const Stack<T2>& op2)
{
    if ((void*)this == (void*)&op2) {    // assignment to itself?
        return *this;
    }

    Stack<T2> tmp(op2);              // create a copy of the assigned stack

    elems.clear();                   // remove existing elements
    while (!tmp.empty()) {           // copy all elements
        elems.push_front(tmp.top());
        tmp.pop();
    }
    return *this;
}


int main()
{
    try {
        Stack<int>   intStack;       // stack of ints
        Stack<float> floatStack;     // stack of floats

        // manipulate int stack
        intStack.push(42);
        intStack.push(7);

        // manipulate float stack
        floatStack.push(7.7);

        // assign stacks of different type
        floatStack = intStack;

        // print float stack
        std::cout << floatStack.top() << std::endl;
        floatStack.pop();
        std::cout << floatStack.top() << std::endl;
        floatStack.pop();
        std::cout << floatStack.top() << std::endl;
        floatStack.pop();
    }
    catch (std::exception const& ex) {
        std::cerr << "Exception: " << ex.what() << std::endl;
        return EXIT_FAILURE;  // exit program with ERROR status
    }
}



best regards

Morten

Re: template under gcc version 3.3.2

[corey taylor]

Morten,

  First one note, I don't see you including anything for the std::deque type.

  You should at least add: #include <deque>

corey

> g++ -ansi -pedantic -Wall -o stest5_test_00.out stest5_test_00.cpp -L
> /opt/sfw/gcc-3/lib/ -R /opt/sfw/gcc-3/lib/ -lstdc++
> stest5_test_00.cpp:11: error: syntax error before `;' token
> 
> #include <iostream>
> #include <string>
> #include <cstdlib>
> 
> // #include "stack5.hpp"
> 
> template <typename T>
> class Stack {
>   private:
>     std::deque<T> elems;   // elements

Re: template under gcc version 3.3.2

[Morten Gulbrandsen]

corey taylor wrote:

>Morten,
>
>  First one note, I don't see you including anything for the std::deque type.
>
>  You should at least add: #include <deque>
>
>corey
>
>  
>
>>g++ -ansi -pedantic -Wall -o stest5_test_00.out stest5_test_00.cpp -L
>>/opt/sfw/gcc-3/lib/ -R /opt/sfw/gcc-3/lib/ -lstdc++
>>stest5_test_00.cpp:11: error: syntax error before `;' token
>>
>>#include <iostream>
>>#include <string>
>>#include <cstdlib>
>>
>>// #include "stack5.hpp"
>>
>>template <typename T>
>>class Stack {
>>  private:
>>    std::deque<T> elems;   // elements
>>    
>>
>
>  
>
OK   I did,

The preceeding code  files   are all good,

I also tried  www.comeaucomputing.com




#include <iostream>
#include <string>
#include <cstdlib>

#include <deque>
#include <vector>
#include <stdexcept>



// #include "stack5.hpp"

//   these files are unchanged
#include "stack5decl.hpp"
#include "stack5assign.hpp"   



int main()
{
    try {
        Stack<int>   intStack;       // stack of ints
        Stack<float> floatStack;     // stack of floats

        // manipulate int stack
        intStack.push(42);
        intStack.push(7);

        // manipulate float stack
        floatStack.push(7.7);

        // assign stacks of different type
        floatStack = intStack;

        // print float stack
        std::cout << floatStack.top() << std::endl;
        floatStack.pop();
        std::cout << floatStack.top() << std::endl;
        floatStack.pop();
        std::cout << floatStack.top() << std::endl;
        floatStack.pop();
    }
    catch (std::exception const& ex) {
        std::cerr << "Exception: " << ex.what() << std::endl;
        return EXIT_FAILURE;  // exit program with ERROR status
    }
}



/*

g++ -o stest5.out stest5.cpp -L /opt/sfw/gcc-3/lib -R /opt/sfw/gcc-3/lib 
-lstdc++

Undefined                       first referenced
 symbol                             in file
Stack<int>::push(int const&)        /var/tmp//ccy3WHcF.o
Stack<float>::push(float const&)    /var/tmp//ccy3WHcF.o
Stack<int>::pop()                   /var/tmp//ccy3WHcF.o
Stack<float>::pop()                 /var/tmp//ccy3WHcF.o
Stack<float>::top() const           /var/tmp//ccy3WHcF.o
Stack<int>::top() const             /var/tmp//ccy3WHcF.o
ld: fatal: Symbol referencing errors. No output written to stest5.out
collect2: ld returned 1 exit status


g++ -v  -o stest5.out stest5.cpp -L /opt/sfw/gcc-3/lib -R 
/opt/sfw/gcc-3/lib -lstdc++
Reading specs from /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/specs
Configured with: ../gcc-3.3.2/configure --prefix=/opt/sfw/gcc-3 
--with-ld=/usr/ccs/bin/ld --with-as=/usr/ccs/bin/as --without-gnu-ld 
--without-gnu-as --enable-shared
Thread model: posix
gcc version 3.3.2
 /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/cc1plus -quiet -v 
-D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=2 stest5.cpp 
-D__GNUG__=3 -quiet -dumpbase stest5.cpp -auxbase stest5 -version -o 
/var/tmp//ccDX6SkL.s
GNU C++ version 3.3.2 (i386-pc-solaris2.9)
        compiled by GNU C version 3.3.2.
GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=32718
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory "/opt/sfw/gcc-3/i386-pc-solaris2.9/include"
#include "..." search starts here:
#include <...> search starts here:
 /opt/sfw/gcc-3/include/c++/3.3.2
 /opt/sfw/gcc-3/include/c++/3.3.2/i386-pc-solaris2.9
 /opt/sfw/gcc-3/include/c++/3.3.2/backward
 /opt/sfw/gcc-3/include
 /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/include
 /usr/include
End of search list.
 /usr/ccs/bin/as -V -Qy -s -o /var/tmp//cc7CpDtM.o /var/tmp//ccDX6SkL.s
as: Sun Compiler Common 9.0 Patch 115114-02 2004/02/09
 /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/collect2 -V -R 
/opt/sfw/gcc-3/lib -Y P,/usr/ccs/lib:/usr/lib -Qy -o stest5.out 
/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crt1.o 
/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crti.o 
/usr/ccs/lib/values-Xa.o 
/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crtbegin.o -L 
/opt/sfw/gcc-3/lib -L/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2 
-L/usr/ccs/bin -L/usr/ccs/lib 
-L/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/../../.. 
/var/tmp//cc7CpDtM.o -lstdc++ -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s 
-lgcc /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crtend.o 
/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crtn.o
ld: Software Generation Utilities - Solaris Link Editors: 5.9-1.385
Undefined                       first referenced
 symbol                             in file
Stack<int>::push(int const&)        /var/tmp//cc7CpDtM.o
Stack<float>::push(float const&)    /var/tmp//cc7CpDtM.o
Stack<int>::pop()                   /var/tmp//cc7CpDtM.o
Stack<float>::pop()                 /var/tmp//cc7CpDtM.o
Stack<float>::top() const           /var/tmp//cc7CpDtM.o
Stack<int>::top() const             /var/tmp//cc7CpDtM.o
ld: fatal: Symbol referencing errors. No output written to stest5.out
collect2: ld returned 1 exit status


*/



best regards

Morten

Re: template under gcc version 3.3.2

[corey taylor]

Morten,

  Well, if those are all the files you have, then the issue is simply
that you never implemented the Stack class methods that gcc throws out
as "undefined references."

  Only the method definitions are there which allow a compilation,
however the linker will error trying to connect the symbols to actual
code.

corey


On Sat, 29 Jan 2005 23:34:00 +0100, Morten Gulbrandsen
<f1000mhz@yahoo.de> wrote:
> corey taylor wrote:
> 
> >Morten,
> >
> >  First one note, I don't see you including anything for the std::deque type.
> >
> >  You should at least add: #include <deque>
> >
> >corey
> >
> >
> >
> >>g++ -ansi -pedantic -Wall -o stest5_test_00.out stest5_test_00.cpp -L
> >>/opt/sfw/gcc-3/lib/ -R /opt/sfw/gcc-3/lib/ -lstdc++
> >>stest5_test_00.cpp:11: error: syntax error before `;' token
> >>
> >>#include <iostream>
> >>#include <string>
> >>#include <cstdlib>
> >>
> >>// #include "stack5.hpp"
> >>
> >>template <typename T>
> >>class Stack {
> >>  private:
> >>    std::deque<T> elems;   // elements
> >>
> >>
> >
> >
> >
> OK   I did,
> 
> The preceeding code  files   are all good,
> 
> I also tried  www.comeaucomputing.com
> 
> 
> #include <iostream>
> #include <string>
> #include <cstdlib>
> 
> #include <deque>
> #include <vector>
> #include <stdexcept>
> 
> // #include "stack5.hpp"
> 
> //   these files are unchanged
> #include "stack5decl.hpp"
> #include "stack5assign.hpp"
> 
> 
> int main()
> {
>     try {
>         Stack<int>   intStack;       // stack of ints
>         Stack<float> floatStack;     // stack of floats
> 
>         // manipulate int stack
>         intStack.push(42);
>         intStack.push(7);
> 
>         // manipulate float stack
>         floatStack.push(7.7);
> 
>         // assign stacks of different type
>         floatStack = intStack;
> 
>         // print float stack
>         std::cout << floatStack.top() << std::endl;
>         floatStack.pop();
>         std::cout << floatStack.top() << std::endl;
>         floatStack.pop();
>         std::cout << floatStack.top() << std::endl;
>         floatStack.pop();
>     }
>     catch (std::exception const& ex) {
>         std::cerr << "Exception: " << ex.what() << std::endl;
>         return EXIT_FAILURE;  // exit program with ERROR status
>     }
> }
> 
> 
> /*
> 
> g++ -o stest5.out stest5.cpp -L /opt/sfw/gcc-3/lib -R /opt/sfw/gcc-3/lib
> -lstdc++
> 
> Undefined                       first referenced
>  symbol                             in file
> Stack<int>::push(int const&)        /var/tmp//ccy3WHcF.o
> Stack<float>::push(float const&)    /var/tmp//ccy3WHcF.o
> Stack<int>::pop()                   /var/tmp//ccy3WHcF.o
> Stack<float>::pop()                 /var/tmp//ccy3WHcF.o
> Stack<float>::top() const           /var/tmp//ccy3WHcF.o
> Stack<int>::top() const             /var/tmp//ccy3WHcF.o
> ld: fatal: Symbol referencing errors. No output written to stest5.out
> collect2: ld returned 1 exit status
> 
> g++ -v  -o stest5.out stest5.cpp -L /opt/sfw/gcc-3/lib -R
> /opt/sfw/gcc-3/lib -lstdc++
> Reading specs from /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/specs
> Configured with: ../gcc-3.3.2/configure --prefix=/opt/sfw/gcc-3
> --with-ld=/usr/ccs/bin/ld --with-as=/usr/ccs/bin/as --without-gnu-ld
> --without-gnu-as --enable-shared
> Thread model: posix
> gcc version 3.3.2
>  /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/cc1plus -quiet -v
> -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=2 stest5.cpp
> -D__GNUG__=3 -quiet -dumpbase stest5.cpp -auxbase stest5 -version -o
> /var/tmp//ccDX6SkL.s
> GNU C++ version 3.3.2 (i386-pc-solaris2.9)
>         compiled by GNU C version 3.3.2.
> GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=32718
> ignoring nonexistent directory "/usr/local/include"
> ignoring nonexistent directory "/opt/sfw/gcc-3/i386-pc-solaris2.9/include"
> #include "..." search starts here:
> #include <...> search starts here:
>  /opt/sfw/gcc-3/include/c++/3.3.2
>  /opt/sfw/gcc-3/include/c++/3.3.2/i386-pc-solaris2.9
>  /opt/sfw/gcc-3/include/c++/3.3.2/backward
>  /opt/sfw/gcc-3/include
>  /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/include
>  /usr/include
> End of search list.
>  /usr/ccs/bin/as -V -Qy -s -o /var/tmp//cc7CpDtM.o /var/tmp//ccDX6SkL.s
> as: Sun Compiler Common 9.0 Patch 115114-02 2004/02/09
>  /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/collect2 -V -R
> /opt/sfw/gcc-3/lib -Y P,/usr/ccs/lib:/usr/lib -Qy -o stest5.out
> /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crt1.o
> /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crti.o
> /usr/ccs/lib/values-Xa.o
> /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crtbegin.o -L
> /opt/sfw/gcc-3/lib -L/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2
> -L/usr/ccs/bin -L/usr/ccs/lib
> -L/opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/../../..
> /var/tmp//cc7CpDtM.o -lstdc++ -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s
> -lgcc /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crtend.o
> /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/crtn.o
> ld: Software Generation Utilities - Solaris Link Editors: 5.9-1.385
> Undefined                       first referenced
>  symbol                             in file
> Stack<int>::push(int const&)        /var/tmp//cc7CpDtM.o
> Stack<float>::push(float const&)    /var/tmp//cc7CpDtM.o
> Stack<int>::pop()                   /var/tmp//cc7CpDtM.o
> Stack<float>::pop()                 /var/tmp//cc7CpDtM.o
> Stack<float>::top() const           /var/tmp//cc7CpDtM.o
> Stack<int>::top() const             /var/tmp//cc7CpDtM.o
> ld: fatal: Symbol referencing errors. No output written to stest5.out
> collect2: ld returned 1 exit status
> 
> */
> 
> best regards
> 
> Morten
> 
>

Re: template under gcc version 3.3.2 *** SOLVED***

[Morten Gulbrandsen]

corey taylor wrote:

>Morten,
>
>  Well, if those are all the files you have, then the issue is simply
>that you never implemented the Stack class methods that gcc throws out
>as "undefined references."
>
>  Only the method definitions are there which allow a compilation,
>however the linker will error trying to connect the symbols to actual
>code.
>
>corey
>  
>

Thanks,

actually something was missing.  not only a small typo.

I searched and found it here.



http://www.josuttis.com/tmplbook/basics/stack5test.cpp.html


the missing piece is

http://www.josuttis.com/tmplbook/basics/stack5.hpp.html

#ifndef STACK_HPP
#define STACK_HPP

#include <deque>
#include <stdexcept>

#include "stack5decl.hpp 
<http://www.josuttis.com/tmplbook/basics/stack5decl.hpp.html>"
#include "stack5assign.hpp 
<http://www.josuttis.com/tmplbook/basics/stack5assign.hpp.html>"

template <typename T>
void Stack<T>::push (T const& elem)
{
    elems.push_back(elem);    /// append copy of passed elem/
}

template<typename T>
void Stack<T>::pop ()
{
    if (elems.empty()) {
        throw std::out_of_range("Stack<>::pop(): empty stack");
    }
    elems.pop_back();         /// remove last element/
}

template <typename T>
T Stack<T>::top () const
{
    if (elems.empty()) {
        throw std::out_of_range("Stack<>::top(): empty stack");
    }
    return elems.back();      /// return copy of last element/
}

#endif /// STACK_HPP




/

it compiles and runs fine

bash-2.05$ g++ -ansi -pedantic -Wall -o stack5test.out stack5test.cpp -L 
/opt/sfw/gcc-3/lib -R /opt/sfw/gcc-3/lib -lstdc++
bash-2.05$ ./stack5test.out
7
42
Exception: Stack<>::top(): empty stack


No complains from gcc,

g++  -v
Reading specs from /opt/sfw/gcc-3/lib/gcc-lib/i386-pc-solaris2.9/3.3.2/specs
Configured with: ../gcc-3.3.2/configure --prefix=/opt/sfw/gcc-3 
--with-ld=/usr/ccs/bin/ld --with-as=/usr/ccs/bin/as --without-gnu-ld 
--without-gnu-as --enable-shared
Thread model: posix
gcc version 3.3.2





Best regards

Morten






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