Problems with basic Hello World program.

Problems with basic Hello World program.

• Azeem Sarwar

  I also have to use.. wcout other wise it jsut prints out a memory address I think.
  
  

• divya mittal

  You can embrace all string constants with _T(). That is resolved according to _UNICODE defined or not, so that L is prepended if in unicode builds. So you have _T("Hello World!")

  --
  SvenC

  
  

• johnvarney

  You should use unicode as everything after Windows 95 has been based in Unicode. However, if you are just writing sample apps to learn, and don't want to be bothered by the L's and the w's in front of everything, you can go to project settings, then on the General page there should be a section that says "Use Multibyte" or "Use Unicode", set it to multibyte.

  -Reza

  
  

• KannanPV

  Check to see if your program is using Multibyte or Unicode. This is usually on the front page of the project settings.

  If it is set to Unicode (which it very well might be), then you need to place an L in front of the string.

  std::cout << L"Hello, world!\n";

  This tells it that the string is using wide characters. If your running in unicode, you generally should change the main() function to wmain() also, although that won't keep it from compiling (VC++ usually subs it at build time for you).

  Also, turn off Using Precompiled Headers as they are not necessary for your project and then you can remove the #include "stdafx.h"

  Let me know if that worked. Otherwise we can take a better look.

  -Reza

  
  

• sebastian_v_b

  Did you setup this project with the VC++ project wizard Did you change any options Did you add additional lib or obj files

  --
  SvenC

  
  

• RobDude

  Change your project settings (General node in your project properties) to Multi Byte Character Set, then your code should be "compatible".

  --
  SvenC

  
  

• kawano1h

  Error 3 error LNK2019: unresolved external symbol "public: __thiscall std::ios_base::Init::Init(void)" ( 0Init@ios_base@std@@QAE@XZ) referenced in function "void __cdecl std::`dynamic initializer for '_Ios_init''(void)" ( __E_Ios_init@std@@YAXXZ) test4.obj
  
  Error 4 error LNK2019: unresolved external symbol "public: __thiscall std::ios_base::Init::~Init(void)" ( 1Init@ios_base@std@@QAE@XZ) referenced in function "void __cdecl std::`dynamic atexit destructor for '_Ios_init''(void)" ( __F_Ios_init@std@@YAXXZ) test4.obj
  
  Hmmm.... this one looks interesting...
  Warning 1 warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library test4
  
  I changed the runtime but no luck....
  
  

• Nima_DK

  I've done that and get exactly the same errors...
  
  

• Gabriel3

  Ok, started a new console app. I''m guessing i'd ben messing about with the project setting to much and it caused some wierd errors....
  
  Ok here is my code... and here is my errors...
  
  #include "stdafx.h"
  #include <iostream>
  
  
  int main()
  {
  std::cout << "Hello, world!\n";
  return 0;
  }
  
  Error 1 error LNK2019: unresolved external symbol "__declspec(dllimport) class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::operator<<<char,struct std::char_traits<char> >(class std::basic_ostream<char,struct std::char_traits<char> > &,char const *)" (__imp_ $ 6DU $char_traits@D@std@@@std@@YAAAV $basic_ostream@DU $char_traits@D@std@@@0@AAV10@PBD@Z) referenced in function _main dfgjhkl.obj
  
  
  and
  
  Error 2 fatal error LNK1120: 1 unresolved externals C:\Documents and Settings\Administrator\My Documents\Visual Studio 2005\Projects\dfgjhkl\Debug\dfgjhkl.exe 1
  
  
  
  
  

• rjodwyer2

  Heh, is this just a V C++ thing as opposed to a normal C++ ide
  
  Because the code works well on my other compiler on my laptop. I just want to do some basic C++ programming using the VS ide as we work with VC++ at uni and I want to be able transfer my projects to and from there. It works at my uni fine jsut with standard C++, no need for all the
  
  _T("strin") or L"strings" things.
  
  Ben.
  
  

• Rob Harris

  Whether I set it to unicode or multibyte, I get the same error if I don't use the "L" before the "hello"
  
  I'm sorry for being annoying here.
  
  

• Mchafu

  Heh, when I place an L infront of the "hello" is works....
  
  How do I get it so I don't need to use the "L"
  
  Oh and thanks :)
  
  
  
  

• AndrewBadera

  How do I change the runtime
  
  Sorry. I am very new at this.
  
  

• AlexCr

  Your cpp is configure to use precompiled headers. You can turn that off from project properties in the C/C++ config section under Precompiled Headers. (Menu Project->Properties, or right click your project in the solution tree view and choose Properties)

  What runtime do you inlude Should be /MT or /MD which should automatically link with the default libs. Check if you have "Ignore All Default Libraries" set. Its in der Linker/Input section of your project configuration properties.

  --
  SvenC

  
  
• Problems with basic Hello World program.