Function popen_test

thread/test/test-lib-data.cpp:24–34

#include <stdlib.h>

bool popen_test(const std::string& cmd, int expect = 0) {
    puts(cmd.c_str());
    auto p = popen(cmd.c_str(), "r");
    char buffer[4096];
    while (fgets(buffer, sizeof(buffer), p) != NULL)
        ;
    auto r = pclose(p);
    if (WIFEXITED(r)) return WEXITSTATUS(r) == expect;
    puts("Not exit");
    return false;
}

std::string popen_read(const std::string& cmd, int expect = 0) {
    std::string ret;