Hello,

i am trying to pleay with example from such a book: Professional C++ (Programmer to Programmer). After compilation I have such output:

sc Database.cpp -cpp -Ae -r -mn -o+time -WA -s -3 -a8 -c -gp -D_CONSOLE=1 -IC:\DM-cpp\stlport\stlport -oDatabase.obj
Warning: C:\Dev-Cpp\Projects\C++\EmployeeDB\Database.cpp(48): implied return of Records::Database::getEmployee at closing '}' does not return value
Warning: C:\Dev-Cpp\Projects\C++\EmployeeDB\Database.cpp(60): implied return of Records::Database::getEmployee at closing '}' does not return value
sc Employee.cpp -cpp -Ae -r -mn -o+time -WA -s -3 -a8 -c -gp -D_CONSOLE=1 -IC:\DM-cpp\stlport\stlport -oEmployee.obj
sc UserInterface.cpp -cpp -Ae -r -mn -o+time -WA -s -3 -a8 -c -gp -D_CONSOLE=1 -IC:\DM-cpp\stlport\stlport -oUserInterface.obj
link /NOI /DE /PACKF /XN /NT /ENTRY:mainCRTStartup /BAS:4194304 /A:512 @EmployeeDB.LNK
ren .\$SCW$.EXE EmployeeDB.EXE
.\EmployeeDB.EXE built
Lines Processed: 52508  Errors: 0  Warnings: 2
Successful build


So, it looks ok. but after start up on screen I see menu in console window (this is ok.) but when I chose option i.e. 0-6 I see new M$ Windows like window with information that EmployDB.exe has encountered a problem and needs to close. More over the same source code works with DEV-CPP (mingw) very good !!!

Can some one put on this some loght ? Maybe I need to specyfy some kind of information for compiler/linker ?

Best Regards,
Fibre Optic

What I'd do is look at Database.cpp lines 48 & 60 and see if there's a problem with the return statement of the functions. You might also check to see if there is an author's web page for that book (there usually is for programmer books), and what if any errata there are. From that, you might also contact the author for help debugging his program.

It's not a good idea to use embedded spaces, +'s, or -'s in path names for DM (the linker gets confused). Just put it in the default c:\dm directory.

And lastly, I'd not turn on compiler optimizer switches until the program is debugged and running. Why is -gp on? Why -s? Why -r? Compile with -g. Then run under the debugger, that'll show you where the error happened.


"Fibre Optic" <fibre_optic@go2.pl> wrote in message news:dajsvs$1l3r$1@digitaldaemon.com...
> Hello,
>
> i am trying to pleay with example from such a book: Professional C++ (Programmer to Programmer). After compilation I have such output:
>
> sc Database.cpp -cpp -Ae -r -mn -o+time -WA -s -3 -a8 -c -gp
> -D_CONSOLE=1 -IC:\DM-cpp\stlport\stlport -oDatabase.obj
> Warning: C:\Dev-Cpp\Projects\C++\EmployeeDB\Database.cpp(48): implied
> return of Records::Database::getEmployee at closing '}' does not return
> value
> Warning: C:\Dev-Cpp\Projects\C++\EmployeeDB\Database.cpp(60): implied
> return of Records::Database::getEmployee at closing '}' does not return
> value
> sc Employee.cpp -cpp -Ae -r -mn -o+time -WA -s -3 -a8 -c -gp
> -D_CONSOLE=1 -IC:\DM-cpp\stlport\stlport -oEmployee.obj
> sc UserInterface.cpp -cpp -Ae -r -mn -o+time -WA -s -3 -a8 -c -gp
> -D_CONSOLE=1 -IC:\DM-cpp\stlport\stlport -oUserInterface.obj
> link /NOI /DE /PACKF /XN /NT /ENTRY:mainCRTStartup /BAS:4194304 /A:512
> @EmployeeDB.LNK
> ren .\$SCW$.EXE EmployeeDB.EXE
> .\EmployeeDB.EXE built
> Lines Processed: 52508  Errors: 0  Warnings: 2
> Successful build
>
>
> So, it looks ok. but after start up on screen I see menu in console window (this is ok.) but when I chose option i.e. 0-6 I see new M$ Windows like window with information that EmployDB.exe has encountered a problem and needs to close. More over the same source code works with DEV-CPP (mingw) very good !!!
>
> Can some one put on this some loght ? Maybe I need to specyfy some kind of information for compiler/linker ?
>
> Best Regards,
> Fibre Optic

Walter wrote:
> What I'd do is look at Database.cpp lines 48 & 60 and see if there's a
> problem with the return statement of the functions. You might also check to
> see if there is an author's web page for that book (there usually is for
> programmer books), and what if any errata there are. From that, you might
> also contact the author for help debugging his program.
> 
> It's not a good idea to use embedded spaces, +'s, or -'s in path names for
> DM (the linker gets confused). Just put it in the default c:\dm directory.
> 
> And lastly, I'd not turn on compiler optimizer switches until the program is
> debugged and running. Why is -gp on? Why -s? Why -r? Compile with -g. Then
> run under the debugger, that'll show you where the error happened.
> 
> 

ok. the code is simple:

#include <iostream>

using namespace std;

int displayMenu();

int main(int argc, char** argv)
{
  bool done = false;

  while (!done) {
    int selection = displayMenu();

    switch (selection) {
    case 1:
      ;
      break;
    case 2:
      ;
      break;
    case 0:
      done = true;
      break;
    default:
      cerr << "Unknown command." << endl;
    }
  }
}

int displayMenu()
{
  int selection;

  cout << endl;
  cout << "Employee Database" << endl;
  cout << "-----------------" << endl;
  cout << "1) Hire a new employee" << endl;
  cout << "2) Fire an employee" << endl;
  cout << "0) Quit" << endl;
  cout << endl;
  cout << "---> ";

  cin >> selection;

  return selection;
}


Could you please check this with your instalation of DM ?

BTW I have DigitalMars.-.C++.8.40.-.Distribution CD upgraded to most recent version and upgreded STL Port (http://mordred.cs.ucla.edu/STLport_DMC)


Thanks a lot !

Fibre Optic

Fibre Optic escreveu:
> Walter wrote:
> 
>> What I'd do is look at Database.cpp lines 48 & 60 and see if there's a
>> problem with the return statement of the functions. You might also check to
[snipped]

> 
> ok. the code is simple:
> 
[snipped~

> 
> 
> Could you please check this with your instalation of DM ?

Could you please check if this is indeed the code that for Database.cpp? The code you sent does not have even a 48th line, so no error could have ocurred at lines 48 and 60!

--
Cesar Rabak

Cesar Rabak wrote:
> 
> Could you please check if this is indeed the code that for Database.cpp? The code you sent does not have even a 48th line, so no error could have ocurred at lines 48 and 60!
> 
> -- 
> Cesar Rabak

you have right, I cut few lines because due to size of code. Source code I sent in my last e-mail generates the same problem during execute  ( during compilation/link there is no errors/warnings)

Once again, this source code with DEV-CPP (mingw) works fine.


Regards,
Fibre Optic

"Fibre Optic" <fibre_optic@go2.pl> wrote in message news:dak8qh$1t7g$1@digitaldaemon.com...
> Could you please check this with your instalation of DM ?

Seems to work fine:

---------------------------------------------------

C:\cbx>sc test -I\dm\stlport\stlport
link test,,,user32+kernel32/noi;


C:\cbx>test

Employee Database
-----------------
1) Hire a new employee
2) Fire an employee
0) Quit

---> 1

Employee Database
-----------------
1) Hire a new employee
2) Fire an employee
0) Quit

---> 2

Employee Database
-----------------
1) Hire a new employee
2) Fire an employee
0) Quit

---> 0

C:\cbx>