missing line from stdout of child process

[BBO-repo]

Hi,

Thanks a lot for the compact and efficient PROCXX. I nevertheless have a little problem getting all the line of the stdout from the child process I am using your procxx to make unit test of a command line interpreter that I've written. The problem I am dealing with is that some lines are missing. Ex: if stdout is the two lines "0\n" and ";\n", I effectively get the two line But if stdout is the tow lines "unknown command\n" and ";\n" I only get the last "\n"

Have you any suggestions to solve my problem.

Thanks.

[skystrife]

What compiler/OS are you using? I can't reproduce this issue with the following code:

/// @file outputter.cpp
#include <iostream>

int main()
{
    std::cout << "unknown command\n;\n";
    return 0;
}

/// @file tester.cpp
#include <iostream>
#include <string>
#include "process.h"

int main()
{
    procxx::process p{"./outputter"};
    p.exec();

    std::string line;
    while (std::getline(p.output(), line))
    {
        std::cout << line << std::endl;
    }
    return 0;
}

Using GCC 5.3.0 and Clang 3.7.1 (with libc++) both give me the expected output

unknown command
;

[BBO-repo]

I'm using linux gcc 4.8.4 Effectively, with your example. I get all the content of the stdout of child process .. I'll continue my investigations. And really fan of the simplicity and compactness of your procxx Thanks for your reactivity.

[BBO-repo]

I figured out where my problem was .. some of the output were written in std::cout whereas some other were in the std:cerr. Then std::cerr content is obtained with .... std::getline(p.error(), line) ......

Discussion could be closed. Thanks a lot for the time spent.

[skystrife]

Let me know if you have any more issues/questions!