什么是升压系统error_code number 2 [英] What is boost system error_code number 2

问题描述

我试图找出什么是Boost系统错误代码2.在程序内，他们打印出提升错误代码.但是，我不确定如何查找此错误代码.

I am trying to figure out what boost system error code 2 is. Within a program they print out the boost error code. However, I am not sure how to look up this error code.

将提供任何帮助.

推荐答案

离我远去:ENOENT/FileNotFound

Off the top of my head: ENOENT/FileNotFound

请参见 http:中的错误代码://www.boost.org/doc/libs/1_58_0/libs/system/doc/reference.html#Header-error_code

在Coliru上直播

#include <boost/system/error_code.hpp>
#include <iostream>

int main()
{
    boost::system::error_code ec;

    ec.assign(2, boost::system::system_category());
    std::cout << ec.message() << "\n";

    ec.assign(boost::system::errc::no_such_file_or_directory, boost::system::system_category());
    std::cout << ec.message() << "\n";
}

打印

No such file or directory
No such file or directory

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