On 20.02.2011 1:49, Artyom wrote:
I would strongly disagree with that. C++ is too "cryptic" enough so having simple, clear and readable interfaces for average programmer is very critical.
Which code is simpler and more clear? auto pipe = ls [--arg("reverse") % -arg('l') % "/usr/lib"] | grep ["^d"]; pipe(); or: struct redirect_to { explicit redirect_to(boost::process::handle h) : h_(h) {} boost::process::stream_ends operator () (boost::process::stream_type) const { return boost::process::stream_ends(h_, boost::process::handle()); } private: boost::process::handle h_; }; template<typename T> T identity(T value) {return value;} // somewhare in main(): process::stream_ends ends = process::behavior::pipe() (process::output_stream); std::string ls_path = process::find_executable_in_path("ls"); std::vector<std::string> ls_args = boost::assign::list_of("--reverse")("-l")("/usr/lib"); process::context ls_ctx; ls_ctx.streams[process::stdout_id] = boost::bind(identity<process::stream_ends>, ends); process::child ls = process::create_child(ls_path, ls_args, ls_ctx); std::string grep_path = process::find_executable_in_path("grep"); std::vector<std::string> grep_args = boost::assign::list_of("^d"); process::context grep_ctx; grep_ctx.streams[process::stdin_id] = redirect_to(ends.parent); process::child grep = process::create_child(grep_path, grep_args, grep_ctx); (...a rhetorical question)