/C++/How to execute a command and get return code stdout and stderr of command in C++

How to execute a command and get return code stdout and stderr of command in C++

std::string exec(const char* cmd) {
    std::array<char, 128> buffer;
    std::string result;

    auto pipe = popen(cmd, "r"); // get rid of shared_ptr

    if (!pipe) throw std::runtime_error("popen() failed!");

    while (!feof(pipe)) {
        if (fgets(buffer.data(), 128, pipe) != nullptr)
            result += buffer.data();
    }

    auto rc = pclose(pipe);

    if (rc == EXIT_SUCCESS) { // == 0

    } else if (rc == EXIT_FAILURE) {  // EXIT_FAILURE is not used by all programs, maybe needs some adaptation.

    }
    return result;
}

Source: stackoverflow.com

Similar codes

1 vote264 views1 answer
Tarray ue4 c++
C++
4 votes302 views1 answer
Continue c++
C++
0 vote205 views1 answer
List that doesn't allow duplicates c++
C++
0 vote239 views1 answer
Labs c++
C++
1 vote257 views1 answer
Google test assert eq float
C++
0 vote236 views1 answer
How to pronounce beaucoup
C++
3 votes239 views1 answer
Deque c++
C++
1 vote280 views3 answers
How to take space separated input in c++
C++
0 vote303 views1 answer
What was the piep piper app
C++
3 votes265 views1 answer
Sfml draw line
C++