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 vote278 views1 answer
Normal Initialisation of 3D Vector
C++
0 vote329 views1 answer
How to use printf with <cinttypes> c++
C++
0 vote275 views2 answers
The code execution cannot proceed because glew32.dll was not found
C++
20 votes256 views3 answers
C++ open file
C++
5 votes286 views1 answer
Interpreter latex matlab
C++
0 vote301 views1 answer
How to type cast quotient of two integers to double with c++
C++
0 vote354 views1 answer
Find number of 1s in a binary cv::mat image
C++
0 vote295 views1 answer
C++ watch a variable
C++
4 votes314 views2 answers
Float to int c++
C++
9 votes288 views2 answers
Delete last char of string C++
C++