Parse /proc/meminfo file

parse_mem_info.cpp

#include <fstream>
#include <iostream>
#include <sstream>
#include <string>

int main()
{
    const std::string meminfo_file("/proc/meminfo");

    std::ifstream ifs(meminfo_file);

    if (ifs)
    {
        std::string line;
        while (std::getline(ifs, line))
        {
            std::istringstream iss(line);
            std::string name;
            std::string value;
            if (iss >> name >> value)
            {
                name.pop_back();
                std::cerr << name << ' ' << value << '\n';
            }
            else
            {
                std::cerr << meminfo_file << "has wrong format: " << line << '\n';
                return 1;
            }
        }
        return 0;
    }
    else
    {
        std::cerr << "No " << meminfo_file << '\n';
        return 1;
    }
}