[natecat]

I just downloaded eclipse for C++/C developers, and created a new hello world project to test that everything is installed right. The hello world program came up with a few errors: Symbol 'cout' could not be resolved, Symbol 'endl' could not be resolved, Symbol 'std' could not be resolved. Does C++ require something like java's JDK in order to compile?

[JackOfAllTrades]

Do you have using namespace std; in your code?

[natecat]

Yes, but that itself is throwing a error.

[snoopy11]

Hi,

Have you included the header <iostream>

at the top of the program ?

#include <iostream>

Snoopy.

[Salem_c]

My guess is you used

gcc foo.cpp

rather than

g++ foo.cpp

You need to use a C++ compiler to compile C++ code.

$ gcc foo.cpp
/tmp/ccLqikjD.o: In function `fun(int const&)':
foo.cpp:(.text+0x54): undefined reference to `std::cout'
foo.cpp:(.text+0x59): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::operator<<(int)'
foo.cpp:(.text+0x66): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char)'
/tmp/ccLqikjD.o: In function `__static_initialization_and_destruction_0(int, int)':
foo.cpp:(.text+0x8f): undefined reference to `std::ios_base::Init::Init()'
foo.cpp:(.text+0x94): undefined reference to `std::ios_base::Init::~Init()'
/tmp/ccLqikjD.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
$ g++ foo.cpp
$ gcc -c foo.cpp

Whilst you can COMPILE C++ code by invoking gcc, it does not pass all the correct options on to the linker (hence all the undefined reference errors). You need g++ in order to compile AND link.

[natecat]

Ok guys, First of all, this is autogenerated code. There is no mistakes in it, ok? Second I am using eclipse, not the console

[jimblumberg]

Quote

Does C++ require something like java's JDK in order to compile?

Yes it requires a compiler like gcc.

What is the complete name of the file you are trying to compile. I don't remember if you can compile a file, in Eclipse, without first creating a project but I recommend you create a project and add files to your project. Also you may need to inform Eclipse where the compiler is located. I am not familiar enough with this IDE to say exactly how to properly set up the build environment.

Jim