Shall this be the example:
#include <iostream>
using namespace std;
int main()
{
cout << "Hola, moondo.\n";
}
It throws the error:
gcc -c main.cpp gcc -o edit main.o main.o: In function `main':
main.cpp:(.text+0xa): undefined reference to `std::cout'
main.cpp:(.text+0xf): 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 const*)'
main.o: In function `__static_initialization_and_destruction_0(int,int)':
main.cpp:(.text+0x3d): undefined reference to `std::ios_base::Init::Init()'
main.cpp:(.text+0x4c): undefined reference to `std::ios_base::Init::~Init()' collect2: error: ld
returned 1 exit status make: *** [qs] Error 1
Also, this example:
#include <iostream>
int main()
{
std::cout<<"Hola, moondo.\n";
}
throws the error:
gcc -c main.cpp gcc -o edit main.o main.o: In function `main':
main.cpp:(.text+0xa): undefined reference to `std::cout'
main.cpp:(.text+0xf): 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 const*)'
main.o: In function `__static_initialization_and_destruction_0(int,int)': main.cpp:(.text+0x3d): undefined reference to `std::ios_base::Init::Init()'
main.cpp:(.text+0x4c): undefined reference to `std::ios_base::Init::~Init()' collect2: error: ld
returned 1 exit status make: *** [qs] Error 1
Note: I am using Debian Wheezy.
Yes, using g++
command worked for me:
g++ my_source_code.cpp
Assuming code.cpp
is the source code, the following will not throw errors:
make code
./code
Here the first command compiles the code and creates an executable with the same name, and the second command runs it. There is no need to specify g++
keyword in this case.
If you're working with a makefile and you ended up here like me, then this is probably what you're looking or:
If you're using a makefile, then you need to change cc
as shown below
my_executable : main.o
cc -o my_executable main.o
to
CC = g++
my_executable : main.o
$(CC) -o my_executable main.o
Source: Stackoverflow.com