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c++ start process and get output

julesgrc0 answered on May 31, 2021 Popularity 4/10 Helpfulness 3/10

answer c++ start process and get output

c++ start process and get output

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#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;
}

Popularity 4/10 Helpfulness 3/10 Language cpp

Source: stackoverflow.com

Tags: c++ get output start-process

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