C++ start process and get output

#include <cstdio>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <array>

std::string exec(const char* cmd) {
    std::array<char, 128> buffer;
    std::string result;
    std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
    if (!pipe) {
        throw std::runtime_error("popen() failed!");
    }
    while (fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr) {
        result += buffer.data();
    }
    return result;
}

Source: stackoverflow.com

Similar codes

0 vote398 views1 answer
Play audio c++
C++
0 vote330 views1 answer
Why ostream cannot be constant
C++
0 vote376 views1 answer
Balanced brackets hackerrank solution c++
C++
1 vote313 views1 answer
Insert binary search tree
C++
0 vote308 views1 answer
Check if a string is a prefix of another c++
C++
0 vote325 views1 answer
Binary add using strings
C++
0 vote324 views2 answers
Qpushbutton clicked connect c++
C++
4 votes366 views2 answers
Gcd function c++
C++
1 vote301 views1 answer
C++ builder
C++
0 vote354 views1 answer
Shell-Sort C++
C++