/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

29 votes397 views6 answers
Convert string to number c++
C++
0 vote308 views1 answer
How to use comparitor in priority queu in c++
C++
0 vote300 views1 answer
Recursive power in c++
C++
1 vote368 views1 answer
How to block window resize sfml c++
C++
1 vote329 views1 answer
Check if point is left or right of vector
C++
0 vote323 views3 answers
C++ loop maker
C++
0 vote352 views1 answer
C++ tokenize string
C++
4 votes342 views1 answer
Shuffle vector c++
C++
0 vote325 views1 answer
C++ sort numbers by magnitude/absolute value
C++
4 votes294 views3 answers
C++ hide show console
C++