C++
x
11
1
2
3
struct MyClass {4
std::ostream& method(std::ostream& os) const;5
};6
7
std::ostream& MyClass::method(std::ostream& os) const8
{ 9
os << "Test!";10
return os; 11
}$ g++ prog.cc -Wall -Wextra -std=c++17 -pedantic
Start
/usr/lib/x86_64-linux-gnu/crt1.o: In function `_start': (.text+0x20): undefined reference to `main' collect2: error: ld returned 1 exit status
1
Finish