Problems compiling the examples

[Brent Goodwin]

Hello,

I receive similar linker errors, using MSVC++ 6.0.  They look like this...

error LNK2001: unresolved external symbol "public: virtual __thiscall
GA1DBinaryStringGenome::~GA1DBinaryStringGenome(void)"
(??1GA1DBinaryStringGenome@@UAE at XZ)
error LNK2001: unresolved external symbol "public: __thiscall
GA1DBinaryStringGenome::GA1DBinaryStringGenome(unsigned int,float
(__cdecl*)(class GAGenome &),void *)"
(??0GA1DBinaryStringGenome@@QAE at IP6AMAAVGAGenome@@@ZPAX at Z)

I've tried both creating a .lib file, and including it in my project, and
just linking to the galib source code, and recieve the error in both cases,
so my clue bag is empty.

Any help is appreciated!

Brent Goodwin

-----Original Message-----
From: Petrakos P. Kyriakos [mailto:petrakos at ceid.upatras.gr]
Sent: Thursday, May 24, 2001 7:39 AM
To: galib at mit.edu
Subject: Problems compiling the examples



Kyle,
	Thank you for your help...it was quit useful.I have followed your
instructions and managed to reduce the number of errors.But I still have
some problems. For instance, during the compilation of ex1.C file, which
is included in galib\examples direcotry, I receive the following strange
error:

----------------------------------------------------------------------------
----------------
Compiling...
ex1.C
c:\windows\desktop\ex1.c(70) : error C2679: binary '<<' : no operator
defined which takes a right-hand operand of type 'const class GAGenome'
(or there is no acceptable conversion)
Error executing cl.exe.
----------------------------------------------------------------------------
----------------

In contrast with ex1.C file, I face no problems with the compilation of
the ex2.C file in the same directory. But when trying to link the .obj
file, I receive the following error messages:

----------------------------------------------------------------------------
----------------
Linking...
ex2.obj : error LNK2001: unresolved external symbol "public: virtual
__thiscall GASimpleGA::~GASimpleGA(void)" (??1GASimpleGA@@UAE at XZ)
ex2.obj : error LNK2001: unresolved external symbol "public: class
GAGenome const & __thiscall GAStatistics::bestIndividual(unsigned
int)const " (?bestIndividual at GAStatistics@@QBEABVGAGenome@@I at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: float
__thiscall GABin2DecGenome::phenotype(unsigned int)const
" (?phenotype at GABin2DecGenome@@QBEMI at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: virtual int
__thiscall GASimpleGA::populationSize(unsigned
int)" (?populationSize at GASimpleGA@@UAEHI at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: __thiscall
GASimpleGA::GASimpleGA(class GAGenome const
&)" (??0GASimpleGA@@QAE at ABVGAGenome@@@Z)
ex2.obj : error LNK2001: unresolved external symbol "public: void
__thiscall GABin2DecPhenotype::add(unsigned
int,float,float)" (?add at GABin2DecPhenotype@@QAEXIMM at Z)
ex2.obj : error LNK2001: unresolved external symbol "void __cdecl
GARandomSeed(unsigned int)" (?GARandomSeed@@YAXI at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: void
__thiscall
GAStatistics::flushScores(void)" (?flushScores at GAStatistics@@QAEXXZ)
ex2.obj : error LNK2001: unresolved external symbol "public: int
__thiscall GAParameterList::set(char const *,void const
*)" (?set at GAParameterList@@QAEHPBDPBX at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: int
__thiscall GAParameterList::set(char const
*,double)" (?set at GAParameterList@@QAEHPBDN at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: int
__thiscall GAStatistics::flushFrequency(unsigned
int)" (?flushFrequency at GAStatistics@@QAEHI at Z)
ex2.obj : error LNK2001: unresolved external symbol "float __cdecl
ran2(void)" (?ran2@@YAMXZ)
ex2.obj : error LNK2001: unresolved external symbol "public: __thiscall
GABin2DecPhenotypeCore::GABin2DecPhenotypeCore(void)"
(??0GABin2DecPhenotypeCore@@QAE at XZ)
ex2.obj : error LNK2001: unresolved external symbol "public: virtual int
__thiscall GABin2DecGenome::notequal(class GAGenome const &)const
" (?notequal at GABin2DecGenome@@UBEHABVGAGenome@@@Z)
ex2.obj : error LNK2001: unresolved external symbol "public: virtual int
__thiscall GABin2DecGenome::equal(class GAGenome const &)const
" (?equal at GABin2DecGenome@@UBEHABVGAGenome@@@Z)
ex2.obj : error LNK2001: unresolved external symbol "public: virtual void
__thiscall GABin2DecGenome::copy(class GAGenome const
&)" (?copy at GABin2DecGenome@@UAEXABVGAGenome@@@Z)
ex2.obj : error LNK2001: unresolved external symbol "public: virtual class
GAGenome * __thiscall GABin2DecGenome::clone(enum
GAGenome::CloneMethod)const
" (?clone at GABin2DecGenome@@UBEPAVGAGenome@@W4CloneMethod at 2@@Z)
ex2.obj : error LNK2001: unresolved external symbol "public: virtual
__thiscall
GA1DBinaryStringGenome::~GA1DBinaryStringGenome(void)"
(??1GA1DBinaryStringGenome@@UAE at XZ)
ex2.obj : error LNK2001: unresolved external symbol "int __cdecl
GABinaryDecode(float &,unsigned char const *,unsigned
int,float,float)" (?GABinaryDecode@@YAHAAMPBEIMM at Z)
ex2.obj : error LNK2001: unresolved external symbol "int __cdecl
GABinaryEncode(float &,unsigned char *,unsigned
int,float,float)" (?GABinaryEncode@@YAHAAMPAEIMM at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: static float
__cdecl GA1DBinaryStringGenome::BitComparator(class GAGenome const &,class
GAGenome const
&)" (?BitComparator at GA1DBinaryStringGenome@@SAMABVGAGenome@@0 at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: __thiscall
GA1DBinaryStringGenome::GA1DBinaryStringGenome(unsigned int,float
(__cdecl*)(class GAGenome &),void
*)" (??0GA1DBinaryStringGenome@@QAE at IP6AMAAVGAGenome@@@ZPAX at Z)
ex2.obj : error LNK2001: unresolved external symbol "public: __thiscall
GABin2DecPhenotypeCore::GABin2DecPhenotypeCore(class
GABin2DecPhenotypeCore const &)" (??0GABin2DecPhenotypeCore@@QAE at ABV0@@Z)
Debug/ex2.exe : fatal error LNK1120: 23 unresolved externals
Error executing link.exe.

ex2.exe - 24 error(s), 0 warning(s)
----------------------------------------------------------------------------
----------------

The result is that the .exe file cannot be created. Is anyone aware of
what is going wrong? For the sake of conception, I also attach the two
files mentioned abobe (it ) ...
Your help would be extremely useful, as I am constantly engaging with
evolutionary computing this period, and I am obliged to implement some
classes by myself, as I cannot use Galib.

       Thank you in advance.




  |=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=|
  |                    Petrakos Kyriakos                    |
  |       Computer Engineering and Informatics Dept.        |
  |             University of Patras - Greece               |
  |=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=|
  |"What we cannot speak about we must pass over in silence"|
  |                     L. Wittgenstein                     |
  |=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=|