Passing a vector or arguments to boost::process (boost::fusion)

Question

I'm trying to create a boost::process from a vector of string arguments:

void runProcess( const std::string& exe, const std::vector<std::string>& args )
{
    bp::ipstream out;
    bp::child c(exe, args, std_out > out);
    ...
}

This apparently works, but I'm getting the following warning:

warning C4503: 'boost::fusion::detail::for_each_linear': decorated name length exceeded, name was truncated

It diseappears if passing arguments one by one bp::child c(exe, "param1", "param2", std_out > out);.

What is the correct way to call childconstructor in this situation?

You are using it correctly. May want to read this https://msdn.microsoft.com/en-us/library/074af4b6.aspx — StoryTeller - Unslander Monica, Dec 04 '17 at 10:27
@StoryTeller: Thanks, but it's unclear to me how the example provided by Microsoft could help removing the warning in my case....what would be the "no warning syntax"? (I have a requirement to have code compile with no warning, and we always prefer to avoid disabling a warning, even locally). — jpo38, Dec 04 '17 at 10:37

score 6 · Answer 1 · answered Dec 04 '17 at 12:52

6

You would use the as intended:

bp::child c(bp::search_path("ls"), bp::args({"-1", "-l"})/*, ...*/);

In your case maybe like

void runProcess( const std::string& exe, const std::vector<std::string>& args )
{
    bp::ipstream out;
    bp::child c(exe, bp::args(args), std_out > out);
    ...
}

answered Dec 04 '17 at 12:52

sehe

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Using `bp::args` does not prevent the warnings from being reported. – jpo38 Dec 04 '17 at 14:45
Oh. These should simply be reported to the library devs. Try `#include ` IIRC – sehe Dec 04 '17 at 14:47
1

Done: https://svn.boost.org/trac10/ticket/13323#ticket. Thanks for the help – jpo38 Dec 04 '17 at 14:57

Passing a vector or arguments to boost::process (boost::fusion)

1 Answers1

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