I keep getting clang: error: no input files in C++

Question

Here is my C++ code:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main () {
    std::ifstream ifs ("strength_classes.txt", std::ifstream::in);

    char c = ifs.get();

    while (ifs.good()) {
        std::cout << c;
        c = ifs.get();
    }

    ifs.close();

    return 0;
}

I then compile it in the tutorial by running the following, but it outputs the error:

Laptop:Downloads Stu$ c++ -c test.cpp
Laptop:Downloads Stu$ g++ -o test.o
clang: error: no input files

Answer 1

I guess you are trying to do the following:

$ g++ test.cpp -c -o test.o
$ g++ test.o -o program

To run your program type

$ ./program

afterwards.

Answer 2

g++ -o test.o

This is wrong. The -o flag is supposed to indicate the filename of the resulting executable, which you're accidentally stating as test.o and then failing to provide inputs.

Write:

g++ -o myBinary test.o

then execute:

./myBinary